Can You Pass This Aircraft Electrical System Test?

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  • 1/100 Questions

    A cross wind causes a falling bomb to

    • Hit the target
    • Fall short of the target
    • Fall left or right of the target
    • Overshoot the target
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About This Quiz

Air transport is the fastest means of transportation, and it does not come with some dangers too. Being an electrical engineer is one thing, but being an aircraft electrical system engineer is another. This job requires more knowledge but picks some from the basics. These are the same questions you will see in the CBT, so try to know the answers as well. For the Multiple Choice, try to understand the answer rather than memorize it.

Can You Pass This Aircraft Electrical System Test? - Quiz

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  • 2. 

    The effect of wind on an aircraft is

    • Unimportant

    • Negligible

    • Significant

    • Slight

    Correct Answer
    A. Significant
    Explanation
    The correct answer is "significant" because wind has a noticeable impact on the performance and handling of an aircraft. Wind can affect the aircraft's speed, direction, and stability, making it crucial for pilots to account for wind conditions during takeoff, landing, and flight. Wind can also cause turbulence, which can be uncomfortable for passengers and potentially hazardous if severe. Therefore, understanding and accounting for the effect of wind is essential for safe and efficient aircraft operations.

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  • 3. 

    During the air align mode of the INU, how should the aircraft be flown?

    • With a slow descent at a constant velocity

    • Straight and level, and at a constant velocity

    • As normal; no special considerations are necessary

    • With a slow ascent at a constant velocity

    Correct Answer
    A. Straight and level, and at a constant velocity
    Explanation
    During the air align mode of the INU, the aircraft should be flown straight and level, and at a constant velocity. This is because the air align mode is used to align the Inertial Navigation Unit (INU) with the actual flight path of the aircraft. Flying straight and level ensures that the INU is aligned with the true horizontal reference, while maintaining a constant velocity helps in accurately calibrating the INU's sensors. By flying in this manner, the INU can accurately determine the aircraft's position and attitude, providing reliable navigation information.

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  • 4. 

    North on a compass rose is

    • 90 degrees

    • 270 degrees

    • 180 degrees

    • 0 degrees

    Correct Answer
    A. 0 degrees
    Explanation
    North on a compass rose is represented by 0 degrees. In a compass, the needle points towards the Earth's magnetic north pole, which is considered as the reference point for determining directions. The needle aligns itself with the Earth's magnetic field, and when it points towards the magnetic north pole, it indicates north. Therefore, 0 degrees represents north on a compass rose.

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  • 5. 

    If the airspeed of the aircraft is too fast, a falling bomb

    • Hits the target

    • Overshoots the target

    • Falls to the side of the target

    • Falls short of the target

    Correct Answer
    A. Overshoots the target
    Explanation
    If the airspeed of the aircraft is too fast, a falling bomb will overshoot the target. This is because the momentum of the bomb, combined with the high speed of the aircraft, will cause it to continue moving forward even after it is released. As a result, the bomb will travel past the intended target before eventually falling to the ground.

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  • 6. 

    Air resistance causing a falling bomb to

    • Fall unpredictably

    • Lag

    • Lead

    • Fall rapid

    Correct Answer
    A. Lag
    Explanation
    Air resistance can cause a falling bomb to lag behind its expected trajectory. When a bomb is dropped from a height, air resistance acts against its motion, slowing it down. This lag can cause the bomb to fall behind its predicted path, making its descent unpredictable. The force of air resistance depends on factors like the shape and size of the bomb, as well as the density of the air. Therefore, the bomb may experience a delay in its fall due to the opposing force of air resistance.

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  • 7. 

    A head wind causes a falling bomb to

    • Fall short of the target

    • Fall left or right of the target

    • Hit the target

    • Overshoot the target

    Correct Answer
    A. Fall short of the target
    Explanation
    A headwind creates resistance against the forward motion of the falling bomb. This resistance reduces the bomb's speed and distance traveled, causing it to fall short of the target.

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  • 8. 

    Which component in a pulse-modulation radar set provides the voltages that operate the other radar components?

    • Transmitter

    • Power supply

    • Indicator

    • Antenna

    Correct Answer
    A. Power supply
    Explanation
    The power supply in a pulse-modulation radar set provides the voltages that operate the other radar components. It is responsible for supplying the necessary electrical power to the transmitter, indicator, and antenna, allowing them to function properly. Without the power supply, the other components would not receive the required voltages to operate effectively, resulting in a non-functional radar system.

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  • 9. 

    In a frequency-shift radar system, what is the relationship between a  transmitter/receiver and an aircraft when the received frequency is lower than the transmitted frequency?

    • They are a constant distance away from each other

    • The aircraft is flying away from the transmitter/receiver

    • The aircraft is not reflecting any of the radar pulses

    • The aircraft is flying towards the transmitter/receiver

    Correct Answer
    A. The aircraft is flying away from the transmitter/receiver
    Explanation
    When the received frequency is lower than the transmitted frequency in a frequency-shift radar system, it indicates that the aircraft is moving away from the transmitter/receiver. This is because the frequency shift occurs due to the Doppler effect, which is caused by the relative motion between the radar system and the aircraft. As the aircraft moves away, the received frequency appears lower due to the increase in the wavelength of the radar signal. Therefore, the correct answer is that the aircraft is flying away from the transmitter/receiver.

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  • 10. 

    HAVE QUICK radios resist jamming by

    • Encryption

    • Phase shifting

    • Retransmission

    • Frequency-hopping

    Correct Answer
    A. Frequency-hopping
    Explanation
    Frequency-hopping is a technique used by HAVE QUICK radios to resist jamming. This involves rapidly changing the frequency of the radio signal in a predetermined pattern. By constantly hopping between frequencies, it becomes difficult for an adversary to jam or intercept the signal effectively. This technique adds a layer of security and ensures reliable communication even in the presence of interference or jamming attempts.

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  • 11. 

    What is used to correct true heading and allow the aircraft to make good the desired true course?

    • Drift correction

    • Ground speed correction

    • Airspeed correction

    • Wind disbursement

    Correct Answer
    A. Drift correction
    Explanation
    Drift correction is used to correct the true heading of an aircraft and allow it to make good the desired true course. When an aircraft is affected by wind drift, it can deviate from its intended course. Drift correction involves adjusting the aircraft's heading to compensate for the effect of wind, ensuring that it stays on track and maintains the desired true course. By making these corrections, the aircraft can navigate accurately and reach its destination as planned.

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  • 12. 

    What LRU consists of a gyro-stabilized platform, platform electronics, navigation computer, input/output functions, and power supply?

    • General navigation avionics control unit

    • Inertial navigation unit

    • Terrain-following avionics control unit

    • Doppler velocity sensor

    Correct Answer
    A. Inertial navigation unit
    Explanation
    The correct answer is the Inertial navigation unit. An inertial navigation unit is a system that uses gyroscopes and accelerometers to measure changes in velocity and orientation. It consists of a gyro-stabilized platform, platform electronics, navigation computer, input/output functions, and power supply. This unit is commonly used in aircraft and other vehicles for navigation purposes, as it can provide accurate position and velocity information even without external references.

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  • 13. 

    The polar axis is the

    • Circle equal distance from the poles

    • Axis about which the earth rotates

    • Circle formed by any plane that passes through the center of the earth

    • Axis about which the moon rotates

    Correct Answer
    A. Axis about which the earth rotates
    Explanation
    The polar axis refers to the axis about which the earth rotates. This axis passes through the North and South poles of the earth and is responsible for the rotation of the planet. It is an imaginary line that connects the two poles and determines the earth's rotational axis. The rotation of the earth around this axis causes the cycle of day and night as well as the movement of celestial objects across the sky.

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  • 14. 

    The sideward displacement of an aircraft by the wind is called

    • Deviation

    • Yaw

    • Groundspeed

    • Drift

    Correct Answer
    A. Drift
    Explanation
    The sideward displacement of an aircraft by the wind is referred to as "drift." When an aircraft is flying in windy conditions, the wind can push it off its intended course, causing it to drift sideways. This can be a challenge for pilots, as they need to constantly adjust their heading to compensate for the drift and maintain their desired track. Understanding and managing drift is crucial for safe and accurate navigation during flight.

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  • 15. 

    The rate of movement of an aircraft relative to the Earth's surface is called

    • Airspeed

    • Velocity

    • Groundspeed

    • Drift

    Correct Answer
    A. Groundspeed
    Explanation
    Groundspeed refers to the rate at which an aircraft is moving relative to the Earth's surface. It represents the actual speed of the aircraft with respect to the ground, taking into account the effects of wind and other factors. Airspeed, on the other hand, refers to the rate of movement of an aircraft relative to the air mass in which it is flying. Velocity is a more general term that can refer to both groundspeed and airspeed, depending on the context. Drift is not the correct answer as it does not specifically refer to the rate of movement of an aircraft relative to the Earth's surface.

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  • 16. 

    The prime meridian is the

    • Circle equal distance between the north and south poles

    • Meridian passing through Greenwich, England

    • Meridian designated the 180 degree meridian

    • Circle designated 0 degree latitude

    Correct Answer
    A. Meridian passing through Greenwich, England
    Explanation
    The prime meridian is the meridian passing through Greenwich, England. This is the correct answer because the prime meridian is an imaginary line that represents 0 degrees longitude. It is used as a reference point for measuring longitude and dividing the Earth into the Eastern and Western Hemispheres. The choice "circle equal distance between the north and south poles" is incorrect because the prime meridian is a line, not a circle. The choices "meridian designated the 180 degree meridian" and "circle designated 0 degree latitude" are also incorrect because they do not accurately describe the prime meridian.

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  • 17. 

    From the prime meridian west to the international dateline, meridians are assigned values of

    • 0 to 90 degrees east

    • 0 to 90 degrees west

    • 0 to 180 degrees west

    • 0 to 180 degrees east

    Correct Answer
    A. 0 to 180 degrees west
    Explanation
    Meridians are imaginary lines that run from the North Pole to the South Pole, dividing the Earth into longitudes. The prime meridian is the starting point for measuring longitudes and is assigned a value of 0 degrees. Moving west from the prime meridian, the values of meridians increase until reaching the international dateline, where they are assigned a value of 180 degrees west. Therefore, the correct answer is 0 to 180 degrees west, as it represents the range of values for meridians from the prime meridian to the international dateline.

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  • 18. 

    A vector diagram that shows the effect of the wind on the flight of an aircraft is called the

    • Wind triangle

    • Navigation chart

    • Destination chart

    • Flight path

    Correct Answer
    A. Wind triangle
    Explanation
    A vector diagram that shows the effect of the wind on the flight of an aircraft is called the wind triangle. This diagram is used in navigation to calculate the aircraft's ground speed, true heading, and drift angle caused by the wind. By using the wind triangle, pilots can make adjustments to their flight path and maintain accurate navigation. It is an essential tool for flight planning and ensuring safe and efficient travel.

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  • 19. 

    What avionics multiplexing data bus provides the path for the inertial navigation unit to communicate with the avionics control unit complex and, eventually, all other aircraft systems?

    • AMUX

    • CMUX

    • DMUX

    • BMUX

    Correct Answer
    A. AMUX
    Explanation
    AMUX stands for Avionics Multiplexing data bus. It provides the path for the inertial navigation unit to communicate with the avionics control unit complex and eventually with all other aircraft systems.

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  • 20. 

    Which GPS component is passive, meaning it does not require power, adjustments, or controls to function?

    • Antenna amplifier

    • Antenna controller

    • Receiver

    • Antenna

    Correct Answer
    A. Antenna
    Explanation
    The antenna is the GPS component that is passive, meaning it does not require power, adjustments, or controls to function. The antenna is responsible for receiving the GPS signals from the satellites and does not require any additional components or power to perform its function. It simply captures the signals and sends them to the receiver for further processing.

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  • 21. 

    In a frequency-shift radar system, what is the relationship between a transmitter/receiver and an aircraft when no frequency shift between them can be measured?

    • They are a constant distance away from each other

    • The aircraft is flying away from the transmitter/receiver

    • The aircraft is not reflecting any of the radar pulses

    • The aircraft is flying towards the transmitter/receiver

    Correct Answer
    A. They are a constant distance away from each other
    Explanation
    When no frequency shift can be measured between the transmitter/receiver and the aircraft in a frequency-shift radar system, it indicates that they are a constant distance away from each other. This means that the aircraft is neither moving towards nor away from the transmitter/receiver. The absence of frequency shift suggests that the radar pulses are not being reflected by the aircraft, which implies that the aircraft is not in motion relative to the radar system. Therefore, the constant distance between them remains unchanged.

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  • 22. 

    Which radar application is used to produce a pictorial map of the terrain?

    • Terrain avoidance

    • Ground mapping

    • Synthetic aperture radar

    • Terrain-following

    Correct Answer
    A. Ground mapping
    Explanation
    Ground mapping is the radar application used to produce a pictorial map of the terrain. This technique involves using radar signals to create a detailed image of the ground below, allowing for accurate mapping and identification of terrain features such as mountains, valleys, and bodies of water. Ground mapping is commonly used in various applications such as military operations, surveying, and navigation. It provides valuable information for terrain analysis, route planning, and target identification.

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  • 23. 

    In navigation, the primary reference is

    • 90 degrees

    • North

    • The equator

    • 0 degrees

    Correct Answer
    A. North
    Explanation
    The primary reference in navigation is north because it is used as a point of reference for determining direction. North is a fixed point on the Earth's surface, and navigators use it as a guide to establish their position and plot their course. By referencing north, navigators can determine their heading and make accurate calculations for navigation purposes.

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  • 24. 

    Which is used to maintain accelerometer orientation in the inertial navigation system?

    • Platform

    • Summing unit

    • Integrator

    • Computer

    Correct Answer
    A. Platform
    Explanation
    The platform is used to maintain accelerometer orientation in the inertial navigation system. The platform is a stable and rigid structure that houses the accelerometers and other sensors. It is designed to isolate the accelerometers from external motion and provide a stable reference frame for measuring acceleration. By keeping the accelerometers fixed relative to the platform, any motion experienced by the platform can be accurately measured and used to determine the orientation and position of the system.

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  • 25. 

    In a pulse-modulation radar system, the transmitter does not interfere with the receiver because the transmitter

    • Uses a different antenna than the receiver

    • Transmits on a different frequency

    • Shifts the frequency of the pulse

    • Is turned off after each pulse

    Correct Answer
    A. Is turned off after each pulse
    Explanation
    In a pulse-modulation radar system, the transmitter is turned off after each pulse. This ensures that the transmitter does not interfere with the receiver during the receiving phase. By turning off the transmitter, it allows the receiver to accurately detect and process the returning echoes without any interference from the transmitter's own signals. This helps in improving the accuracy and reliability of the radar system.

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  • 26. 

    In a frequency-shift radar system, what is the relationship between a  transmitter/receiver and an aircraft when the received frequency is higher than the transmitted frequency?

    • They are a constant distance away from each other

    • The aircraft is flying away from the transmitter/receiver

    • The aircraft is flying towards the transmitter/receiver

    • The aircraft is not reflecting any of the radar pulses

    Correct Answer
    A. The aircraft is flying towards the transmitter/receiver
    Explanation
    When the received frequency is higher than the transmitted frequency in a frequency-shift radar system, it indicates that the aircraft is flying towards the transmitter/receiver. This is because the Doppler effect causes the frequency of the radar waves reflected off the moving aircraft to increase. This increase in frequency suggests that the aircraft is approaching the radar system, resulting in a higher received frequency.

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  • 27. 

    What is formed on the surface of the Earth by any plane that passes through the center of the Earth and divides it into two equal parts?

    • Parallel of latitude

    • Great circle

    • Meridian of longitude

    • Equator

    Correct Answer
    A. Great circle
    Explanation
    A great circle is formed on the surface of the Earth by any plane that passes through the center of the Earth and divides it into two equal parts. This means that a great circle is a circle that has the same diameter as the Earth and divides it into two hemispheres. The equator is a specific example of a great circle, as it is formed by a plane that passes through the center of the Earth and divides it into the northern and southern hemispheres. Therefore, the correct answer is great circle.

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  • 28. 

    The preplanned flight route can be described in the

    • Stores table

    • Gravity table

    • Release table

    • Action point table

    Correct Answer
    A. Action point table
    Explanation
    The preplanned flight route can be described in the action point table. This table would contain information about the specific points or locations where certain actions or maneuvers need to be performed during the flight. It would outline the sequence of actions and the corresponding points on the route where they should be executed. This table helps ensure that the flight follows the planned route accurately and that all necessary actions are carried out at the appropriate locations.

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  • 29. 

    The indicators on the front of the inertial navigation unit are used to

    • Allow adjustments to the inertial navigation unit

    • Identify malfunctions within the inertial navigation unit

    • Indicate the normal operation of the inertial navigation unit

    • Provide inputs during checkout

    Correct Answer
    A. Identify malfunctions within the inertial navigation unit
    Explanation
    The indicators on the front of the inertial navigation unit are used to identify malfunctions within the unit. These indicators are designed to provide visual cues or signals that alert the user to any potential issues or faults with the navigation unit. By monitoring these indicators, the user can quickly identify and address any malfunctions, ensuring the proper functioning of the inertial navigation unit and maintaining accurate navigation capabilities.

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  • 30. 

    What INU mode is about 45 minutes in duration?

    • Stored heading align

    • Precision align

    • Air align

    • Navigate

    Correct Answer
    A. Precision align
    Explanation
    Precision align is a mode that takes about 45 minutes to complete. During this mode, the system aligns the heading of the INU (Inertial Navigation Unit) to a high level of accuracy. This process involves using various sensors and algorithms to determine the precise orientation of the INU relative to the Earth's reference frame. Once the precision alignment is complete, the INU is ready to provide accurate navigation information for the duration of the mission or operation.

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  • 31. 

    In GPS, almanac data is transmitted to each satellite to each satellite to update the navigation data message once every

    • 48 hours

    • 24 hours

    • 12 hours

    • 6 hours

    Correct Answer
    A. 24 hours
    Explanation
    Almanac data is essential for GPS satellites to accurately determine their own position and transmit accurate navigation data to GPS receivers. This data includes information about the satellite's orbital parameters, clock corrections, and health status. To ensure that the navigation data is up to date, the almanac data is transmitted to each satellite once every 24 hours. This regular update helps maintain the accuracy and reliability of the GPS system for users worldwide.

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  • 32. 

    Which component in a pulse-modulation radar system shapes the radio-frequency energy into a narrow beam?

    • Antenna

    • Transmitter

    • Synchronizer

    • Indicator

    Correct Answer
    A. Antenna
    Explanation
    The antenna in a pulse-modulation radar system shapes the radio-frequency energy into a narrow beam. Antennas are designed to focus and direct the radio waves in a specific direction, allowing the radar system to accurately detect and track targets within that beam. By controlling the shape and direction of the beam, the antenna helps to optimize the radar system's performance and increase its range and accuracy.

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  • 33. 

    What is produced in the pulse-modulation radar system by heterodyning?

    • Intermediate-frequency

    • Very-low frequency

    • High-frequency

    • Very-high frequency

    Correct Answer
    A. Intermediate-frequency
    Explanation
    In a pulse-modulation radar system, heterodyning is the process of combining two frequencies to produce a third frequency. This third frequency is known as the intermediate-frequency (IF). Heterodyning is used to convert the received radar signal to a lower frequency that is easier to process and analyze. The IF signal contains the information about the target's range and velocity, which is then used to generate a radar display. Therefore, the correct answer is intermediate-frequency.

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  • 34. 

    The ability of a radio receiver to reproduce weak signals is called

    • Reception

    • Sensitivity

    • Detection

    • Reproduction

    Correct Answer
    A. Sensitivity
    Explanation
    The correct answer is sensitivity. Sensitivity refers to the ability of a radio receiver to accurately reproduce weak signals. A receiver with high sensitivity can pick up and amplify faint signals, allowing for better reception and detection of weak radio waves. This is an important characteristic for radio receivers, as it determines their effectiveness in capturing and reproducing weak signals.

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  • 35. 

    UHF radios are primarily used for

    • Line-of-sight communication

    • Communication with civilian air traffic controllers

    • Long range communications

    • Direction-finding operations

    Correct Answer
    A. Line-of-sight communication
    Explanation
    UHF radios are primarily used for line-of-sight communication because they operate on the ultra-high frequency range, which allows for shorter wavelengths and better signal propagation over shorter distances. Line-of-sight communication refers to the ability to transmit and receive signals directly between two points without any obstructions in the path. UHF radios are commonly used in scenarios where direct communication between individuals or within a limited range is required, such as in military operations, emergency services, and short-range communication between vehicles or handheld devices.

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  • 36. 

    When two signals are received simultaneously on the same operating net, the HAVE QUICK II radio automatically goes into conferencing by

    • Setting the receiver to narrowband reception

    • Injecting a beat frequency to make both signals unintelligible

    • Offsetting the second transmitter frequency by 25 KHz

    • Resetting the net number for communication

    Correct Answer
    A. Offsetting the second transmitter frequency by 25 KHz
    Explanation
    The correct answer is "offsetting the second transmitter frequency by 25 KHz". When two signals are received simultaneously on the same operating net, the HAVE QUICK II radio automatically offsets the frequency of the second transmitter by 25 KHz. This is done to avoid interference and ensure that both signals can be received and distinguished properly. By offsetting the frequency, the radio can separate the two signals and allow for clear and intelligible communication.

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  • 37. 

    Which system utilizes the equator as one fixed regerence point and the Greenwich meridian as the other fixed reference point?

    • Instrument landing

    • Aircraft landing

    • Geographic coordinate

    • Inertial navigation

    Correct Answer
    A. Geographic coordinate
    Explanation
    The geographic coordinate system utilizes the equator as one fixed reference point and the Greenwich meridian as the other fixed reference point. This system is commonly used to determine the precise location of a point on the Earth's surface using latitude and longitude coordinates. It provides a standardized way to express locations and is widely used in navigation, mapping, and surveying.

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  • 38. 

    On navigation charts, the lines that connect points of equal magnetic variation are called

    • Deviation lines

    • Agonic

    • Variation lines

    • Isogonic

    Correct Answer
    A. Isogonic
    Explanation
    Isogonic lines on navigation charts connect points of equal magnetic variation. These lines help sailors and pilots to determine the angle between true north and magnetic north at a given location. By following isogonic lines, navigators can adjust their compass readings to account for the magnetic variation and accurately navigate their course.

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  • 39. 

    Below what temperature does the modulator valve close to prevent over-cooling of the INU?

    • 80 F

    • 170 F

    • 120 F

    • 90 F

    Correct Answer
    A. 80 F
    Explanation
    The modulator valve closes below 80°F to prevent over-cooling of the INU.

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  • 40. 

    In which radar system is the transmitter turned on for short periods of time and off for long periods of time?

    • Beacon

    • Frequency-shift

    • Frequency-modulation

    • Pulse-modulation

    Correct Answer
    A. Pulse-modulation
    Explanation
    Pulse-modulation is the correct answer because in this radar system, the transmitter is turned on for short periods of time and then turned off for long periods of time. This allows the radar to transmit pulses of energy and then listen for the echoes that bounce back from targets. By using this on-off pattern, the radar can conserve power and reduce the chances of interference from other radar systems.

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  • 41. 

    In a pulse-modulation radar system, the pulse repetition frequency is the number of pulses

    • That are transmitted within 1 second

    • That strike the target within 1 second

    • Transmitted during the listening time

    • That are received within 1 second

    Correct Answer
    A. That are transmitted within 1 second
    Explanation
    The pulse repetition frequency in a pulse-modulation radar system refers to the number of pulses that are transmitted within 1 second. This means that it measures the rate at which the radar system sends out pulses of electromagnetic energy. By knowing the pulse repetition frequency, the radar system can determine the distance to a target based on the time it takes for the pulse to travel to the target and back.

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  • 42. 

    Which radar altimeter mode is initiated when an insufficient amount of return video is present during the keyed automatic gain control gate?

    • Search/loss of track

    • Track

    • Ground map

    • Standby

    Correct Answer
    A. Search/loss of track
    Explanation
    When an insufficient amount of return video is present during the keyed automatic gain control gate, it indicates that the radar is unable to track or maintain contact with the target. This could be due to various reasons such as the target being out of range or obscured. In such cases, the radar altimeter mode that is initiated is the "Search/loss of track" mode, which is used to search for and reacquire the target or track it again.

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  • 43. 

    The changing of position with respect to some other body is called

    • Speed

    • Reference

    • Motion

    • Velocity

    Correct Answer
    A. Motion
    Explanation
    Motion refers to the changing of position with respect to some other body. It is the movement or displacement of an object in relation to its surroundings. Speed refers to the rate at which an object covers distance, while velocity refers to the rate at which an object changes its position in a particular direction. Reference is a point or object used for comparison to determine motion or position. Therefore, the correct answer is motion as it specifically refers to the changing of position.

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  • 44. 

    A VHF frequency-modulated radio is mainly used on aircraft that

    • Contact Army ground troops

    • Are under the control of civilian air traffic controllers

    • Use Air Force-controlled airfields

    • Contact airborne tankers for refueling

    Correct Answer
    A. Contact Army ground troops
    Explanation
    A VHF frequency-modulated radio is mainly used on aircraft that contact Army ground troops. This type of radio is commonly used for communication between aircraft and ground troops during military operations. It allows for effective and efficient communication, ensuring coordination and cooperation between the aircraft and the Army ground troops.

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  • 45. 

    Errors in the orbit and clock data of the GPS satellites are detected in the

    • Global positioning system

    • Satellites

    • Monitor stations

    • Master control station

    Correct Answer
    A. Monitor stations
    Explanation
    The monitor stations in the global positioning system are responsible for detecting errors in the orbit and clock data of the GPS satellites. These stations constantly monitor the signals and data transmitted by the satellites and compare them with the expected values. Any discrepancies or inconsistencies are flagged as errors, which can then be corrected or adjusted by the master control station. The monitor stations play a crucial role in ensuring the accuracy and reliability of the GPS system by identifying and rectifying any issues with the satellite data.

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  • 46. 

    Which GPS unit provides a display for the ARN-151?

    • Indicator control

    • Receiver

    • Antenna controller

    • Mount

    Correct Answer
    A. Indicator control
    Explanation
    The correct answer is Indicator control. The question is asking which GPS unit provides a display for the ARN-151. The Indicator control is the unit that typically includes a display for showing GPS information. The receiver is responsible for receiving GPS signals, the antenna controller manages the antenna, and the mount is used to physically secure the GPS unit. Therefore, the Indicator control is the most likely unit to provide a display for the ARN-151.

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  • 47. 

    Relative bearing of an aircraft is the direction measured clockwise from

    • The aircraft heading to the object

    • True north to the object

    • 0 degrees to the object

    • The object to true north

    Correct Answer
    A. The aircraft heading to the object
    Explanation
    The relative bearing of an aircraft is the direction measured clockwise from the aircraft heading to the object. This means that it indicates the angle between the aircraft's heading and the direction of the object. It helps the pilot understand the position of the object in relation to their aircraft and aids in navigation and situational awareness.

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  • 48. 

    What LRU is the prime sensor for measuring motion and velocity, and establishes and maintains a measurable frame of reference on the B-1B?

    • General navigation avionics control unit

    • Inertial navigation unit

    • Terrain-following avionics control unit

    • Doppler velocity sensor

    Correct Answer
    A. Inertial navigation unit
    Explanation
    The correct answer is the inertial navigation unit. The inertial navigation unit is the prime sensor for measuring motion and velocity on the B-1B. It establishes and maintains a measurable frame of reference by using accelerometers and gyroscopes to track changes in velocity and direction. This information is crucial for accurate navigation and guidance of the aircraft. The other options, such as the general navigation avionics control unit and terrain-following avionics control unit, may play a role in navigation but are not specifically designed for measuring motion and velocity. The Doppler velocity sensor is also used for measuring velocity but is not the primary sensor on the B-1B.

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  • 49. 

    Which component is the central controller for the INU?

    • Stabilized platform

    • Platform electronics

    • Power supply

    • Navigation computer

    Correct Answer
    A. Navigation computer
    Explanation
    The navigation computer is the central controller for the Inertial Navigation Unit (INU). It is responsible for processing and integrating data from various sensors to determine the position, velocity, and attitude of the platform. The navigation computer plays a crucial role in providing accurate navigation and guidance information to the system.

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Quiz Review Timeline (Updated): Jul 31, 2024 +

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  • Current Version
  • Jul 31, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 03, 2010
    Quiz Created by
    Egramza
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