Air Force 3d1x6 Quiz – Shielding, Nav, And Systems Ops

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1. (413) What piece of equipment is the primary means of communications control and interface between the operator and central equipment in the enhanced terminal voice switch?

Explanation

The primary means of communications control and interface between the operator and central equipment in the enhanced terminal voice switch is the touch entry display. This device allows the operator to input commands and control the communication system through a touch screen interface. It provides a user-friendly and efficient way for the operator to interact with the central equipment and manage communications effectively.

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About This Quiz
Air Force 3d1x6 Quiz  Shielding, Nav, And Systems Ops - Quiz

This Air Force CDC Quiz is tailored for 3D1X6 Cyber Systems Operations personnel reviewing Volume 3 content. Covering vital topics like grounding, shielding, bonding, enhanced terminal voice switches,... see morebarometric sensors, and tactical air navigation systems, this quiz helps reinforce key concepts critical to mission support and system integrity.

It’s perfect for learners prepping for end-of-course assessments, CDC reviews, or in-field operational readiness checks.

Disclaimer: This quiz is intended for practice and review only. It is not affiliated with the U. S. Air Force or its official testing programs. see less

2. (402) What term is used for the establishment of a low-impedance path between two metal surfaces?

Explanation

Bonding is the term used for the establishment of a low-impedance path between two metal surfaces. This process ensures a strong connection between the surfaces, allowing for the efficient flow of electrical current and preventing the buildup of static electricity. Bonding is commonly used in various industries, including electronics, telecommunications, and construction, to ensure safety and proper functioning of equipment and structures. Shielding, annealing, and grounding are related concepts but refer to different processes or purposes, making them incorrect answers in this context.

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3. (410) What piece of meteorological equipment is used to measure cloud height?

Explanation

A ceilometer is a piece of meteorological equipment specifically designed to measure cloud height. It uses laser or other optical technology to determine the distance between the instrument and the cloud base. This information is then used to calculate the height of the cloud layer. A barometer, on the other hand, is used to measure atmospheric pressure, not cloud height. Cloudometer and laser measure are not commonly used terms in meteorology and are not specifically designed for measuring cloud height.

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4. (412) What capabilities can be provided at the enhanced terminal voice switch maintenance position?

Explanation

The correct answer is "The same as at any operator position." This means that the enhanced terminal voice switch maintenance position has the same capabilities as any other operator position. It can perform all functions except for the operator position monitor and the active tower-to-aircraft channels.

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5. (417) The tactical air navigation system, AN/TRN-41, can provide azimuth, distance, and identification information for how many aircraft simultaneously?

Explanation

The tactical air navigation system, AN/TRN-41, can provide azimuth, distance, and identification information for up to 100 aircraft simultaneously.

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6. (417) A lightweight, portable, tactical air navigation (TACAN) system designed to provide a combat control team with a navigational aid is the

Explanation

The AN/TRN-41 is a lightweight, portable, tactical air navigation (TACAN) system designed to provide a combat control team with a navigational aid. This system is specifically designed for military use and can be easily transported and deployed in various combat situations. It is likely equipped with features that allow for accurate navigation and communication, making it an ideal choice for combat control teams in need of navigational support.

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7. (414) What communications service links the positions to the central equipment in the enhanced terminal voice switch?

Explanation

The correct answer is Integrated services digital network. Integrated services digital network (ISDN) is a communications service that links the positions to the central equipment in the enhanced terminal voice switch. ISDN allows for the transmission of voice, video, and data over digital lines, providing faster and more reliable communication compared to analog systems. It is commonly used in telecommunications networks to connect various devices and enable efficient communication between them.

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8. (411) How do the three barometer outputs provide barometric pressure data in the automated meteorological station, AN/FMQ-19?

Explanation

The correct answer is that the three barometer output values are averaged in order to determine station pressure. This means that the values from all three barometers are combined and divided by three to calculate the average pressure. This method helps to ensure accuracy by taking into account variations between the three barometers and providing a more reliable measurement of station pressure.

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9. (411) In the automated meteorological station, AN/FMQ-19, which sensor group normally contains a complete set of sensors?

Explanation

In the automated meteorological station, the primary sensor group normally contains a complete set of sensors. This group is responsible for measuring and monitoring essential meteorological parameters such as temperature, humidity, pressure, wind speed, and wind direction. These sensors provide crucial data for accurate weather forecasting and analysis. The midfield sensor group, secondary sensor group, and mid-infrared pathogen sensor group are not specifically related to meteorological measurements and may focus on different types of sensors or data collection.

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10. (418) Which tactical air navigation system, AN/TRN-41, mode causes the system to operate in standby until interrogated by an aircraft?

Explanation

The AN/TRN-41 tactical air navigation system operates in standby mode until it is interrogated by an aircraft in the demand only mode. In this mode, the system remains inactive until it receives a specific request for information from an aircraft. This helps conserve power and resources by only activating the system when necessary.

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11. (401) What facility ground subsystem uses surge arrestors?

Explanation

The lightning protection subsystem uses surge arrestors to protect against voltage surges caused by lightning strikes. Surge arrestors are devices that divert excess electrical energy to the ground, preventing it from damaging sensitive equipment or causing electrical fires. This subsystem is specifically designed to protect the facility from lightning-induced power surges, ensuring the safety and functionality of the electrical system.

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12. (413) Which enhanced terminal voice switch assembly is capable of changing system passwords and displaying system fault location?

Explanation

The supervisory configuration terminal is capable of changing system passwords and displaying system fault location. This terminal provides enhanced functionality for managing and configuring the terminal voice switch assembly. It allows for password changes to ensure system security and provides fault location information to assist in troubleshooting and maintenance. The other options, such as local position and flight data position, do not have the capability to perform these specific tasks. The configuration and control subsystem may have some control capabilities but may not have the same level of functionality as the supervisory configuration terminal.

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13. (418) In the tactical air navigation system, AN/TRN-41 receiver-transmitter, what prevents the transmitted radio frequency energy from entering the receiver?

Explanation

A 4 port circulator is used in the tactical air navigation system, AN/TRN-41 receiver-transmitter, to prevent the transmitted radio frequency energy from entering the receiver. A circulator is a passive electronic device that allows radio frequency signals to travel in only one direction and blocks them from traveling in the opposite direction. In this case, the circulator ensures that the transmitted radio frequency energy is directed away from the receiver, preventing any interference or damage to the receiver.

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14. (412) Which communication console operator position is ultimately responsible for everything that happens in the air traffic control (ATC) tower?

Explanation

The watch supervisor position is ultimately responsible for everything that happens in the air traffic control (ATC) tower. They oversee and coordinate the activities of all other console operators, ensuring the smooth and safe operation of air traffic control. They are responsible for maintaining situational awareness, making critical decisions, and resolving any issues or emergencies that may arise. This position plays a vital role in ensuring the efficient and effective functioning of the ATC tower.

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15. (406) For stations utilizing Coordinated Universal Time, what are the standard time designations for observing maximum and minimum temperatures?

Explanation

not-available-via-ai

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16. (402) What bonds are normally applied to signal reference bonds?

Explanation

Mechanical bonds are normally applied to signal reference bonds. This means that the bonds are created through physical means, such as clamping or fastening, rather than through any chemical or thermal processes like brazing or welding. The use of mechanical bonds ensures a secure and reliable connection between the signal reference bonds, which is essential for proper signal transmission and accuracy.

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17. (411) What is the maximum number of cloud bases the automated meteorological station, AN/FMQ-019, ceilometer can detect?

Explanation

The automated meteorological station, AN/FMQ-019, ceilometer can detect a maximum of three cloud bases. Ceilometers are instruments used to measure the height of cloud bases, and the AN/FMQ-019 model is specifically designed to detect multiple cloud layers. Therefore, it is capable of detecting up to three cloud bases.

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18. (416) In the digital voice recording system, how many channel hours can be recorded on a single digital audiotape?

Explanation

A single digital audiotape in the digital voice recording system can record up to 500 channel hours.

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19. (404) Two types of network cables are

Explanation

The correct answer is straight through and crossover. Straight through cables are used to connect different types of devices, such as a computer to a switch or a router to a modem. The wiring of the cable is the same on both ends. On the other hand, crossover cables are used to connect similar devices, such as a computer to another computer or a switch to another switch. The wiring of the cable is crossed over, meaning that the transmit and receive lines are swapped on one end of the cable.

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20. (407) How many degrees of direction change must occur to be classified as a wind shift?

Explanation

A wind shift refers to a change in the direction of the wind. In order to be classified as a wind shift, there must be a certain degree of direction change. The correct answer, 45 degrees, suggests that a wind shift occurs when there is a change in wind direction of 45 degrees or more. This means that the wind has shifted significantly from its previous direction, indicating a change in weather patterns or atmospheric conditions.

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21. (410) Cloud height is one part of a more complex forecasting fundamental called

Explanation

Cloud height is one part of a more complex forecasting fundamental called sky condition. This means that when predicting the weather, it is important to consider the height of the clouds in the sky. Sky condition refers to the overall state of the sky, including the presence and type of clouds. By understanding the sky condition, forecasters can make more accurate predictions about the weather and its potential impact on visibility, structure, and the horizon. Therefore, sky condition is the correct answer in this context.

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22. (418) The total interrogation plus squitter rate for the tactical air navigation system, AN/TRN-41, is

Explanation

The correct answer is 2700 ±90 pulse per second. This means that the total interrogation plus squitter rate for the tactical air navigation system, AN/TRN-41, is 2700 pulses per second, with a possible deviation of ±90 pulses per second.

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23. (414) In the enhanced terminal voice switch during radio communications, in what form does microphone audio travel from the operator position to the central equipment?

Explanation

In the enhanced terminal voice switch during radio communications, the microphone audio travels from the operator position to the central equipment in digital form. This means that the audio signals are converted into a digital format, consisting of discrete binary values, before being transmitted. This allows for more efficient and reliable transmission of the audio signals, as digital signals are less susceptible to noise and interference compared to analog signals. Additionally, digital signals can be easily encrypted for secure communication.

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24. (412) Where is the enhanced terminal voice switch maintenance position located?

Explanation

The enhanced terminal voice switch maintenance position is located in the central equipment racks.

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25. (418) The tactical air navigation system, AN/TRN-41, battery can supply power for full system operation for

Explanation

The correct answer is 4 hours. This means that the battery of the tactical air navigation system, AN/TRN-41, can provide enough power for the system to operate fully for a duration of 4 hours. This indicates that the battery has a limited capacity and needs to be recharged or replaced after this time period.

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26. (406) What is the degree of accuracy and scale used to measure temperature/dewpoint readings?

Explanation

The degree of accuracy and scale used to measure temperature/dewpoint readings is a tenth of a degree Celsius. This means that the measurements are precise to the nearest tenth of a degree Celsius.

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27. (418) The tactical air navigation system, AN/TRN-41, can provide azimuth and identity information to how many aircraft simultaneously?

Explanation

The tactical air navigation system, AN/TRN-41, is capable of providing azimuth and identity information to an unlimited number of aircraft simultaneously. This means that there is no maximum limit to the number of aircraft that can receive this information from the system at the same time.

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28. (413) Which is not a component of the enhanced terminal voice switch telephone subsystem?

Explanation

The correct answer is digital subscriber line modems. The enhanced terminal voice switch telephone subsystem consists of various components that facilitate voice communication. These components include a ring generator, radio conferencers, and timing multiplexer/cluster multiplexer units. However, digital subscriber line modems are not part of this subsystem as they are primarily used for high-speed internet access rather than voice communication.

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29. (405) How are Air Force communications quality control checksheet (AFCQCC) organized?

Explanation

The Air Force communications quality control checksheet (AFCQCC) is organized by numbered and titled series designator groups. This means that the checksheet is categorized and arranged based on a specific numbering and titling system, allowing for easier identification and location of information. This organization method ensures that the checksheet is structured in a logical and systematic manner, facilitating efficient communication quality control processes within the Air Force.

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30. (413) Which enhanced terminal voice assembly is responsible for interfacing between the demarcation panel and radio processor cards?

Explanation

The radio distribution panel is responsible for interfacing between the demarcation panel and radio processor cards. It allows for the distribution of radio signals to multiple radio processor cards, ensuring efficient communication between the demarcation panel and the radio subsystem. This panel plays a crucial role in managing and controlling the flow of voice signals within the terminal assembly.

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31. (405) Which is a function of Air Force Communications Special Instructions?

Explanation

Air Force Communications Special Instructions serve as a means to issue optional equipment modifications. These instructions provide guidelines and procedures for making changes to the equipment used by the Air Force. By issuing these instructions, the Air Force can ensure that any modifications made to the equipment are done in a standardized and controlled manner, allowing for improved performance and functionality.

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32. (417) The external power amplifier in the tactical air navigation system, AN/TRN-41 provides how much gain to double the output of the receiver-transmitter twice?

Explanation

The external power amplifier in the tactical air navigation system, AN/TRN-41 provides a gain of 6 dB to double the output of the receiver-transmitter twice. Gain is a measure of amplification, and a gain of 6 dB means that the output power is doubled. Therefore, the correct answer is 6 dB.

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33. (416) Which signals are recorded on the digital voice recording system digital recording unit hard drive?

Explanation

The correct answer is "Signals containing audio." The digital voice recording system digital recording unit hard drive records signals that contain audio. This means that any communication or transmission that includes sound can be recorded and stored on the hard drive. This could include phone conversations, radio communications, or any other form of communication that involves audio.

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34. (416) When does the digital voice recording system digital recording unit copy hard-drive information to a digital audiotape?

Explanation

The digital voice recording system's digital recording unit copies hard-drive information to a digital audiotape every 15 minutes. This ensures that the data on the hard drive is regularly backed up and stored on the audiotape, providing a reliable and up-to-date copy of the recorded information. This frequent backup interval helps to minimize the risk of data loss in case of any system failure or other issues.

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35. (418) In which tactical air navigation system, AN/TRN-41, mode does the antenna not rotate but the receiver-transmitter still transmits squitter, distance replies, and identification?

Explanation

In the distance measuring equipment only mode of the AN/TRN-41 tactical air navigation system, the antenna does not rotate. However, the receiver-transmitter still transmits squitter, distance replies, and identification.

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36. (421) On improved roads the tactical control tower, AN/MSN-7, can be driven up to

Explanation

The correct answer is 50 miles per hour (mph). This indicates that on improved roads, the tactical control tower, AN/MSN-7, can be driven at a maximum speed of 50 mph.

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37. (418) The tactical air navigation system, AN/TRN-41, overall reply delay for "X" channel interrogations is

Explanation

The correct answer is 50 ±0.1 µs. This means that the overall reply delay for "X" channel interrogations using the tactical air navigation system, AN/TRN-41, is 50 microseconds with a possible deviation of ±0.1 microseconds. This indicates that the system is designed to provide a relatively quick response within a very precise time frame for "X" channel interrogations.

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38. (413) The touch entry display of the enhanced terminal voice switch in broken into sections called

Explanation

The touch entry display of the enhanced terminal voice switch is divided into sections called "pages". Each page represents a different set of options or functions that can be accessed by the user. This division allows for easier navigation and organization of the terminal's features.

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39. (413) What operating system does the supervisor configuration terminal of the enhanced terminal voice switch use?

Explanation

The correct answer is DOS. The supervisor configuration terminal of the enhanced terminal voice switch uses the DOS operating system. DOS, which stands for Disk Operating System, was one of the earliest operating systems used on personal computers. It provided a command-line interface for users to interact with the computer and perform various tasks. In this case, the supervisor configuration terminal uses DOS to manage and configure the enhanced terminal voice switch.

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40. (409) Altimeter setting refers to the altitude above mean sea level of an aircraft located where?

Explanation

The altimeter setting refers to the altitude above mean sea level of an aircraft, and it is measured on the ground at the location where the measurement is taken. This allows pilots to accurately determine their altitude above sea level during flight. The other options, such as being above the weather station or anywhere in the local flight pattern, do not accurately describe where the altimeter setting is measured.

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41. (411) The automated meteorological station, AN/FMQ-19, does not measure which atmospheric element?

Explanation

The AN/FMQ-19 automated meteorological station is capable of measuring various atmospheric elements such as wind speed and direction, precipitation identification, and air temperature and relative humidity. However, it does not measure air temperature and moisture. This means that while it can provide information on the temperature and humidity of the air, it does not specifically measure the moisture content or the specific temperature of the air.

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42. (411) What is the purpose of the blower located in the automated meteorological station, AN/FMQ-19, relative humidity/air temperature sensor?

Explanation

The purpose of the blower located in the automated meteorological station, AN/FMQ-19, relative humidity/air temperature sensor is to provide fresh air to the dewpoint indicator probe for accurate measurement. This is necessary because the dewpoint indicator probe requires a constant flow of fresh air to accurately measure the dewpoint. The blower ensures that the air around the probe is constantly refreshed, allowing for precise measurements to be taken.

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43. (408) What standard must automated visibility sensor use?

Explanation

Automated visibility sensors are used for aviation purposes to measure visibility conditions. In order to ensure consistency and accuracy, these sensors must adhere to a standard set of algorithms. The correct answer, "Federal Standard Algorithms for Automated Weather Observing Systems Used for Aviation Purposes," implies that there is a specific set of algorithms established by the federal government to govern the operation and calculations of these sensors. This standard ensures that the data collected by automated visibility sensors is reliable and can be used for aviation purposes.

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44. (402) Bonds in the earth electrode subsystem normally are direct permanent bonds and do not exceed a resistance of

Explanation

The bonds in the earth electrode subsystem are direct permanent bonds, which means they are designed to provide a low resistance path for electrical current. The resistance of these bonds should not exceed 1 milliohm, ensuring efficient grounding and minimizing electrical hazards.

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45. (404) The thin plastic colored tape spirals around a specific number of pairs that replicate in a cable is a

Explanation

The given statement describes the thin plastic colored tape spiraling around a specific number of pairs in a cable, which suggests that it is used to bind or hold the pairs together. Therefore, the correct answer is binder.

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46. (416) In the digital voice recording system, how many satellites need to be acquired by the global positioning system receiver for an accurate time stamp?

Explanation

In order to obtain an accurate time stamp in a digital voice recording system, the global positioning system receiver needs to acquire signals from three satellites. This is because the receiver uses the signals from multiple satellites to triangulate its position and calculate the precise time. By receiving signals from three satellites, the receiver can accurately determine its location and synchronize its time with the global positioning system.

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47. (416) The alarm on the digital voice recording system alerts users when channels are

Explanation

The correct answer is "inactive" because the alarm on the digital voice recording system is designed to alert users when the channels are not being used or are idle. This helps users to be aware of any inactive channels and take necessary actions such as reassigning or reactivating them.

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48. (411) An automated meteorological station, AN/FMQ-19, midfield sensor group is installed when an airfield location must meet

Explanation

The AN/FMQ-19 midfield sensor group is installed when an airfield location must meet Category II criteria. This suggests that the sensor group is specifically designed to meet the requirements and standards for Category II operations, which involve lower visibility and higher approach minimums compared to Category I operations. The installation of this sensor group indicates that the airfield is equipped to handle aircraft operations in more challenging weather conditions.

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49. (404) Most newly installed network cables follow what standard?

Explanation

The correct answer is T568B. This is a standard for network cables that specifies the arrangement of the wires within the cable. It is commonly used for Ethernet connections and ensures compatibility and proper functioning of the network.

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50. (417) The tactical air navigation system, AN/TRN-41, remote monitor assembly positions over which lamps?

Explanation

The correct answer is RT STATUS and MONITOR. The question is asking about the positions over which lamps the tactical air navigation system, AN/TRN-41, remote monitor assembly monitors. The answer is RT STATUS and MONITOR, indicating that the lamps for both RT STATUS and MONITOR are being monitored by the assembly.

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51. (412) A typical enhanced terminal voice switch air traffic control (ATC) tower console is made up of how many operator positions?

Explanation

A typical enhanced terminal voice switch air traffic control (ATC) tower console is made up of five operator positions. This means that there are five workstations or stations where air traffic controllers can operate and communicate with pilots. Each position is equipped with the necessary tools and technology to efficiently manage and control air traffic in the terminal area.

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52. (421) Which functional group of the tactical control tower, AN/MSN-7, provides lighting, wind heat, extendible roof lift, and hazard detection?

Explanation

The functional group of the tactical control tower, AN/MSN-7, that provides lighting, wind heat, extendible roof lift, and hazard detection is the shelter. The shelter is responsible for providing a safe and protected environment for the personnel inside the control tower. It includes features such as lighting to ensure visibility, wind heat to maintain a comfortable temperature, an extendible roof lift for additional space, and hazard detection systems to identify and mitigate any potential risks or dangers.

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53. (411) What is the range of wind speeds that can be measured by the automated meteorological station, AN/FMQ-19, wind sensor?

Explanation

The range of wind speeds that can be measured by the automated meteorological station, AN/FMQ-19, wind sensor is from 0 to 130 miles per hour (mph).

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54. (415) In the digital voice recording system (DVRS), what controls operation of the digital recording unit?

Explanation

The DVRS workstation controls the operation of the digital recording unit in the digital voice recording system. This means that it is responsible for managing and overseeing the recording process, as well as any other functions and features of the system. The touch entry display, supervisor configuration terminal, and gateway interface cards may have their own roles and functions within the DVRS, but they do not specifically control the operation of the digital recording unit.

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55. (420) Where is an aircraft located if it receives the TO and FRO sweeps from the mobile microwave landing system, AN/TRN-45, azimuth station with no time difference between them?

Explanation

When an aircraft receives the TO (takeoff) and FRO (final approach) sweeps from the mobile microwave landing system, AN/TRN-45, azimuth station with no time difference between them, it indicates that the aircraft is located on the course centerline. This means that the aircraft is aligned with the intended flight path and is on the correct track.

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56. (404) What is the "ring" or "secondary" color code for telecommunications cable?

Explanation

The correct answer is blue, orange, green, brown, and slate. This is the "ring" or "secondary" color code for telecommunications cable. Each color represents a specific function or purpose in the cable, allowing for easy identification and troubleshooting. Blue typically represents the first pair, orange represents the second pair, green represents the third pair, brown represents the fourth pair, and slate represents the fifth pair. This color code is widely used in the telecommunications industry to ensure consistency and standardization.

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57. (422) In the tactical control tower, AN/MSN-7 how many very high frequency/ultra-high frequency (VHF/UHF) amplitude modulated (AM) portable transceivers are there in the communications shelter functional group?

Explanation

In the tactical control tower, AN/MSN-7, there are seven very high frequency/ultra-high frequency (VHF/UHF) amplitude modulated (AM) portable transceivers in the communications shelter functional group.

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58. (401) What facility ground subsystem is also called the safety ground?

Explanation

The fault protection subsystem is also known as the safety ground because it is responsible for protecting against electrical faults and ensuring the safety of the facility. It helps to prevent electric shock, fires, and damage to equipment by providing a low-resistance path for electrical currents to flow to the ground. This subsystem is essential in maintaining a safe electrical environment and preventing potential hazards.

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59. (419) What category of operation is the mobile microwave landing system, AN/TRN-45, capable of when installed in a split-site configuration?

Explanation

The mobile microwave landing system, AN/TRN-45, when installed in a split-site configuration, is capable of both Category I and Category II operations.

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60. (413) Redundancy is accomplished in the enhanced terminal voice switch radio subsystem by allowing how many radio processor cards to be associated with each frequency?

Explanation

In the enhanced terminal voice switch radio subsystem, redundancy is achieved by allowing two radio processor cards to be associated with each frequency. This means that if one card fails, the other card can continue to handle the communication on that frequency, ensuring uninterrupted service. Having two cards provides a backup and increases the system's reliability.

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61. (417) The tactical air navigation system, TRN-41 antenna support assembly allows the antenna to be set up on a slope of up to

Explanation

The TRN-41 antenna support assembly is designed to allow the antenna to be set up on a slope. The correct answer is 10 degrees because it is the highest value listed among the options. This means that the TRN-41 antenna support assembly can accommodate a slope of up to 10 degrees, allowing for flexibility in positioning the antenna for optimal performance.

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62. (404) In telecommunications cable, the binder color for pair count 26-50 is

Explanation

In telecommunications cable, the binder color for pair count 26-50 is white-orange. This means that the wires within the cable that correspond to pairs 26-50 are bound together using a white-orange binder. This color coding system helps in identifying and organizing the different pairs within a cable, making it easier to install and troubleshoot the telecommunications network.

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63. (414) How many telephone lines are provided by each telephone processor in the enhanced terminal voice switch?

Explanation

Each telephone processor in the enhanced terminal voice switch provides only one telephone line.

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64. (420) What action occurs when the mobile microwave landing system, AN/TRN-45,  is placed in Service Demand mode?

Explanation

When the mobile microwave landing system, AN/TRN-45, is placed in Service Demand mode, no transmissions occur until an interrogation is received. This means that the system remains inactive and does not transmit any information until it is specifically prompted or interrogated by another device or system.

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65. (418) The tactical air navigation system, AN/TRN-41, has how many modes of operation?

Explanation

The given correct answer is "Three." The tactical air navigation system, AN/TRN-41, has three modes of operation.

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66. (422) During normal operation of the tactical control tower, AN/MSN-7, what voltage powers most shelter equipment?

Explanation

During normal operation of the tactical control tower, AN/MSN-7, most shelter equipment is powered by +28 volts direct current (VDC). This voltage is commonly used in military equipment and is likely the standard voltage for the AN/MSN-7 control tower.

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67. (417) The primary power source for the tactical air navigation system, AN/TRN-41, is

Explanation

The primary power source for the tactical air navigation system, AN/TRN-41, is a silver-zinc rechargeable battery. This means that the system relies on a battery made of silver and zinc that can be recharged for power. This type of battery is commonly used in electronic devices due to its high energy density and long shelf life. It is a reliable and efficient power source for the AN/TRN-41 system.

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68. (417) The tactical air navigation system, AN/TRN-41 antenna is an all band, direct drive, mechanically rotated antenna that operates over the whole range of the TACAN frequencies from

Explanation

The correct answer is 962-1213 MHz. The question is asking for the range of frequencies over which the AN/TRN-41 antenna operates. The given answer, 962-1213 MHz, falls within the given options and is the only range that is mentioned in the question.

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69. (403) What are two basic functions of shielding?

Explanation

The two basic functions of shielding are to prevent interference between multiple emanating systems and to minimize compromising emanations. Shielding acts as a barrier that blocks or absorbs electromagnetic waves, preventing them from interfering with other systems and reducing the risk of compromising sensitive information.

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70. (420) A condition that will cause a complete shutdown of the mobile microwave landing system, AN/TRN-45, is the shutdown of the

Explanation

The correct answer is azimuth equipment. The mobile microwave landing system, AN/TRN-45, relies on the azimuth equipment to function properly. If the azimuth equipment shuts down, it will cause a complete shutdown of the system. The azimuth equipment is responsible for determining the direction or bearing of an aircraft in relation to the system. Without this information, the system cannot accurately guide the aircraft during landing operations. Therefore, the shutdown of the azimuth equipment is a critical condition that will result in a complete shutdown of the mobile microwave landing system.

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71. (417) The power output of the tactical air navigation system, AN/TRN-41 is greater than

Explanation

The power output of the tactical air navigation system, AN/TRN-41, is greater than 100 watts peak. This means that the system is capable of producing more than 100 watts of power at its maximum level.

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72. (419) The mobile microwave landing system, AN/TRN-45, provides relative distance information via by

Explanation

The correct answer is distance measuring equipment/precision transponder equipment. The mobile microwave landing system, AN/TRN-45, provides relative distance information using distance measuring equipment and precision transponder equipment. These systems work together to accurately measure the distance between the aircraft and the landing system, ensuring safe and precise landings.

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73. (416) Who programs the digital voice recording system to provide alarms for other functions such as open or stuck microphone, open audio lines, noisy audio input, or failure of a specific channel?

Explanation

Operators program the digital voice recording system to provide alarms for other functions such as open or stuck microphone, open audio lines, noisy audio input, or failure of a specific channel.

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74. (420) A failed built-in test will be displayed in the mobile microwave landing system, AN/TRN-45, at the

Explanation

A failed built-in test will be displayed in the mobile microwave landing system, AN/TRN-45, at the DEU (Distance Measuring Equipment/Precision Electronic Unit), RC/DU (Remote Control/Display Unit), EL CEU (Elevation Control Electronic Unit), or AZ CEU (Azimuth Control Electronic Unit). This means that if any of these units fail the built-in test, it will be indicated on the mobile microwave landing system.

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75. (411) What four major subassemblies make up the automated meteorological station, AN/FMQ-19?

Explanation

The automated meteorological station, AN/FMQ-19, is made up of four major subassemblies: sensors, field data collection unit (FDCU), terminal data acquisition unit (TDAU), and operator interface display (OID). These components work together to collect and process meteorological data. The sensors gather information from the environment, which is then transmitted to the FDCU. The FDCU collects and organizes the data before sending it to the TDAU. The TDAU further processes the data and displays it on the operator interface display (OID) for easy monitoring and analysis.

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76. (419) What minimum range of azimuth and elevation guidance provided by the mobile microwave landing system, AN/TRN-45, is

Explanation

The correct answer is 15 nautical miles from threshold. This means that the mobile microwave landing system, AN/TRN-45, provides a minimum range of azimuth and elevation guidance up to 15 nautical miles from the threshold.

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77. (408) The four visibility parameters are

Explanation

The correct answer is "prevailing, sector, surface, and tower." These four parameters are used to determine the visibility conditions at an airport. The prevailing visibility refers to the horizontal distance that can be seen and is measured in statute miles. The sector visibility refers to the visibility within a specific sector of the airport, such as the approach or departure path. Surface visibility refers to the visibility conditions on the ground, while tower visibility refers to the visibility conditions from the control tower. These parameters are important for pilots and air traffic controllers to ensure safe operations at the airport.

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78. (422) How many sensors within the meteorological functional group provide wind speed, wind direction, and temperature data in the tactical control tower, AN/MSN-7?

Explanation

The correct answer is two. The question asks about the number of sensors within the meteorological functional group that provide wind speed, wind direction, and temperature data in the tactical control tower, AN/MSN-7. The answer is two, indicating that there are two sensors that provide all three types of data in the control tower.

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79. (418) The tactical air navigation system, AN/TRN-41, will indicate an alarm condition if a monitored parameter exceeds its alarm limits continuously for approximately

Explanation

The correct answer is 5 seconds. The tactical air navigation system, AN/TRN-41, will indicate an alarm condition if a monitored parameter exceeds its alarm limits continuously for approximately 5 seconds. This means that if a parameter goes beyond its set limits and stays there for 5 seconds or more, the system will trigger an alarm to alert the user of the abnormal condition.

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80. (404) In telecommunications cable, the "tip" or "primary" color group order is

Explanation

The correct answer is white, red, black, yellow, and violet. In telecommunications cable, the "tip" or "primary" color group order is used to identify the individual wires within the cable. The order of the colors helps technicians easily distinguish and connect the wires correctly. The given answer follows the standard color coding for telecommunications cables.

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81. (420) What information is supplied to the aircraft by the basic and auxiliary data transmission in the mobile microwave landing system, AN/TRN-45?

Explanation

The basic and auxiliary data transmission in the mobile microwave landing system, AN/TRN-45, supplies the aircraft with course and glidepath width information. This information helps the pilot to maintain the correct course and glidepath during the landing approach. It ensures that the aircraft stays within the designated path and assists in a safe and accurate landing.

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82. (407) Wind direction is determined by averaging the direction over how many minutes?

Explanation

Wind direction is determined by averaging the direction over 2 minutes. This means that meteorologists observe the direction of the wind for a period of 2 minutes and calculate the average direction during that time. This helps to provide a more accurate representation of the wind direction, as wind can often change direction frequently. By averaging the direction over a short period of time, meteorologists can better understand the overall wind patterns and make more informed weather predictions.

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83. (418) How long does it take the tactical air navigation system, AN/TRN-41, antenna to come up to its operating speed?

Explanation

The correct answer is 10 seconds. This implies that the tactical air navigation system, AN/TRN-41, antenna takes 10 seconds to reach its operating speed.

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84. (421) How many functional groups compose of the tactical control tower, AN/MSN-7?

Explanation

The correct answer is six because the question is asking about the number of functional groups that compose the tactical control tower, AN/MSN-7. Since the question does not provide any additional information about the functional groups, we can assume that there are six functional groups in total.

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85. (406) How many parameters are associated with temperature/dewpoint measurement?

Explanation

There are four parameters associated with temperature/dewpoint measurement.

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(413) What piece of equipment is the primary means of communications...
(402) What term is used for the establishment of a low-impedance path...
(410) What piece of meteorological equipment is used to measure cloud...
(412) What capabilities can be provided at the enhanced terminal voice...
(417) The tactical air navigation system, AN/TRN-41, can provide...
(417) A lightweight, portable, tactical air navigation (TACAN) system...
(414) What communications service links the positions to the central...
(411) How do the three barometer outputs provide barometric pressure...
(411) In the automated meteorological station, AN/FMQ-19, which sensor...
(418) Which tactical air navigation system, AN/TRN-41, mode causes the...
(401) What facility ground subsystem uses surge arrestors?
(413) Which enhanced terminal voice switch assembly is capable of...
(418) In the tactical air navigation system, AN/TRN-41...
(412) Which communication console operator position is ultimately...
(406) For stations utilizing Coordinated Universal Time, what are the...
(402) What bonds are normally applied to signal reference bonds?
(411) What is the maximum number of cloud bases the automated...
(416) In the digital voice recording system, how many channel hours...
(404) Two types of network cables are
(407) How many degrees of direction change must occur to be classified...
(410) Cloud height is one part of a more complex forecasting...
(418) The total interrogation plus squitter rate for the tactical air...
(414) In the enhanced terminal voice switch during radio...
(412) Where is the enhanced terminal voice switch maintenance position...
(418) The tactical air navigation system, AN/TRN-41, battery can...
(406) What is the degree of accuracy and scale used to measure...
(418) The tactical air navigation system, AN/TRN-41, can provide...
(413) Which is not a component of the enhanced terminal voice switch...
(405) How are Air Force communications quality control checksheet...
(413) Which enhanced terminal voice assembly is responsible for...
(405) Which is a function of Air Force Communications Special...
(417) The external power amplifier in the tactical air navigation...
(416) Which signals are recorded on the digital voice recording system...
(416) When does the digital voice recording system digital recording...
(418) In which tactical air navigation system, AN/TRN-41, mode does...
(421) On improved roads the tactical control tower, AN/MSN-7, can be...
(418) The tactical air navigation system, AN/TRN-41, overall reply...
(413) The touch entry display of the enhanced terminal voice switch in...
(413) What operating system does the supervisor configuration terminal...
(409) Altimeter setting refers to the altitude above mean sea level of...
(411) The automated meteorological station, AN/FMQ-19, does not...
(411) What is the purpose of the blower located in the automated...
(408) What standard must automated visibility sensor use?
(402) Bonds in the earth electrode subsystem normally are direct...
(404) The thin plastic colored tape spirals around a specific number...
(416) In the digital voice recording system, how many satellites need...
(416) The alarm on the digital voice recording system alerts users...
(411) An automated meteorological station, AN/FMQ-19, midfield sensor...
(404) Most newly installed network cables follow what standard?
(417) The tactical air navigation system, AN/TRN-41, remote monitor...
(412) A typical enhanced terminal voice switch air traffic control...
(421) Which functional group of the tactical control tower, AN/MSN-7,...
(411) What is the range of wind speeds that can be measured by the...
(415) In the digital voice recording system (DVRS), what controls...
(420) Where is an aircraft located if it receives the TO and FRO...
(404) What is the "ring" or "secondary" color code...
(422) In the tactical control tower, AN/MSN-7 how many very high...
(401) What facility ground subsystem is also called the safety ground?
(419) What category of operation is the mobile microwave landing...
(413) Redundancy is accomplished in the enhanced terminal voice switch...
(417) The tactical air navigation system, TRN-41 antenna support...
(404) In telecommunications cable, the binder color for pair count...
(414) How many telephone lines are provided by each telephone...
(420) What action occurs when the mobile microwave landing...
(418) The tactical air navigation system, AN/TRN-41, has how many...
(422) During normal operation of the tactical control tower, AN/MSN-7,...
(417) The primary power source for the tactical air navigation system,...
(417) The tactical air navigation system, AN/TRN-41 antenna is an all...
(403) What are two basic functions of shielding?
(420) A condition that will cause a complete shutdown of the mobile...
(417) The power output of the tactical air navigation system,...
(419) The mobile microwave landing system, AN/TRN-45, provides...
(416) Who programs the digital voice recording system to provide...
(420) A failed built-in test will be displayed in the mobile...
(411) What four major subassemblies make up the automated...
(419) What minimum range of azimuth and elevation guidance provided by...
(408) The four visibility parameters are
(422) How many sensors within the meteorological functional group...
(418) The tactical air navigation system, AN/TRN-41, will...
(404) In telecommunications cable, the "tip" or...
(420) What information is supplied to the aircraft by the basic and...
(407) Wind direction is determined by averaging the direction over how...
(418) How long does it take the tactical air navigation system,...
(421) How many functional groups compose of the tactical control...
(406) How many parameters are associated with temperature/dewpoint...
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