Mhafb CDC 2a051t Vol.1 Aircraft Systems

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  • 1/65 Questions

    (008) The operational range of the combined altitude radar altimeter is

    • 0-1,000 feet
    • 0-2,000 feet
    • 0-5,000 feet
    • 0-50,000 feet
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Mhafb CDC 2a051t Vol.1 Aircraft Systems - Quiz
About This Quiz

Explore key aspects of aircraft systems with the MHAFB CDC 2A051T Vol. 1 quiz. Covering topics like aerial navigation, ILS, TACAN, and VOR systems, this quiz assesses understanding of directional guidance and operational principles essential for aviation professionals.


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  • 2. 

    (011) which component's function is to radiate and collect radio frequency (RF)

    • Antenna

    • Speaker

    • Amplifier

    • Microphone

    Correct Answer
    A. Antenna
    Explanation
    The antenna is responsible for radiating and collecting radio frequency (RF) signals. It is designed to transmit and receive electromagnetic waves, allowing for the transmission and reception of RF signals. The other options, such as the speaker, amplifier, and microphone, are not specifically designed for this purpose. The speaker is used to produce sound, the amplifier is used to increase the amplitude of electrical signals, and the microphone is used to convert sound waves into electrical signals. Therefore, the correct answer is antenna.

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  • 3. 

    (017) in the intercommunications system, which type of communication does not require the use of a push-to-talk switch to activate the microphone (MIC)?

    • CALL

    • HOT-MIC

    • EXTERNAL

    • INTERPHONE

    Correct Answer
    A. HOT-MIC
    Explanation
    A "HOT-MIC" communication in the intercommunications system does not require the use of a push-to-talk switch to activate the microphone (MIC). This means that the microphone is always active and transmitting sound, allowing for continuous communication without the need to press a button to speak.

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  • 4. 

    (019) what type of satellites has circular equatorial orbits and appears stationary with respect to a point on earth?

    • Active

    • Passive

    • Geosynchronous

    • Nongeosynchronous

    Correct Answer
    A. Geosynchronous
    Explanation
    Geosynchronous satellites have circular equatorial orbits and appear stationary with respect to a point on Earth. This means that they orbit the Earth at the same rate that the Earth rotates, allowing them to remain fixed above a specific location on the planet's surface. This characteristic makes them ideal for applications such as weather monitoring, communication, and broadcasting, as they can provide continuous coverage of a specific area.

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  • 5. 

    (025) which of these describe yaw?

    • Left wing down

    • Right wing down

    • Nose up, nose down

    • Nose left, nose right

    Correct Answer
    A. Nose left, nose right
    Explanation
    Yaw is a term used in aviation to describe the rotation of an aircraft around its vertical axis. When an aircraft yaws, it moves its nose to the left or right. Therefore, the correct answer "nose left, nose right" accurately describes yaw as it refers to the movement of the aircraft's nose in those directions.

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  • 6. 

    (010) What is the term for random or unintentional electron movement?

    • Noise

    • Distortion

    • Modulation

    • Heterodyning

    Correct Answer
    A. Noise
    Explanation
    Noise refers to random or unintentional electron movement. In electronic systems, noise can be caused by various factors such as thermal agitation, interference, or imperfections in components. This random movement of electrons can introduce unwanted signals or disturbances into a system, affecting its performance and accuracy. Therefore, noise is the correct term for random or unintentional electron movement.

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  • 7. 

    (016) how many high-frequency channels can be selected from the AN/ARC-190 radio set control?

    • 29 (0-29)

    • 29 (01-29)

    • 30 (00-29)

    • 30 (01-30)

    Correct Answer
    A. 30 (00-29)
    Explanation
    The correct answer is 30 (00-29). This indicates that there are a total of 30 high-frequency channels that can be selected from the AN/ARC-190 radio set control. The range of channels starts from 00 and goes up to 29, allowing for a selection of 30 different channels.

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  • 8. 

    (033) the ability of a radar set to inicate very small differences in range where the targets are in the same directions is known as range

    • Size

    • Value

    • Resolution

    • Consistency

    Correct Answer
    A. Resolution
    Explanation
    Resolution refers to the ability of a radar set to indicate very small differences in range where the targets are in the same direction. In other words, it is the radar's capability to accurately distinguish between objects that are very close together in terms of range. A radar system with high resolution will be able to detect and display targets that are very close in range, providing detailed and precise information about their locations. Therefore, resolution is the correct answer in this context.

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  • 9. 

    (002) The basic operating principle of the very high frequency omnidirectional range system is the phase comparison between the

    • 30 Hz reference and 30 Hz variable signals

    • 30 Hz reference and 9960 Hz FM signals

    • 30 Hz variable and 9960 Hz FM signals

    • 90 Hz and 150 Hz modulated signals

    Correct Answer
    A. 30 Hz reference and 30 Hz variable signals
    Explanation
    The correct answer is 30 Hz reference and 30 Hz variable signals. The basic operating principle of the very high frequency omnidirectional range (VOR) system relies on the phase comparison between the 30 Hz reference signal and the 30 Hz variable signal. The VOR system uses two signals, one fixed and one rotating, to determine the aircraft's bearing relative to the ground station. By comparing the phase difference between these two signals, the VOR system can accurately determine the aircraft's position and direction.

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  • 10. 

    (012) What is the frequency range of the ultrahigh frequency (UHF) radio system?

    • 2.2500 to 3.9997 MHz

    • 22.500 to 39.997 MHz

    • 225.000 to 399.975 MHz

    • 2250.00 to 3999.75 MHz

    Correct Answer
    A. 225.000 to 399.975 MHz
    Explanation
    The correct answer is 225.000 to 399.975 MHz. This frequency range is commonly used for ultrahigh frequency (UHF) radio systems. It falls within the range of UHF frequencies, which typically range from 300 MHz to 3 GHz. UHF frequencies are commonly used for various applications such as television broadcasting, mobile communication, and wireless data transmission.

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  • 11. 

    (013) the very high frequency (VHF) communicaton system provides clear-voice, two-way communication with what type of modulation?

    • AM only

    • AM and FM

    • Pulse and AM

    • Pulse and FM

    Correct Answer
    A. AM and FM
    Explanation
    The VHF communication system provides clear-voice, two-way communication using both AM (Amplitude Modulation) and FM (Frequency Modulation) modulation techniques. AM modulation involves varying the amplitude of the carrier wave to transmit information, while FM modulation involves varying the frequency of the carrier wave. Using both AM and FM modulation allows for a more reliable and high-quality communication system.

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  • 12. 

    (015) with single-sideband modulation, what signal(s) get s discarded?

    • Carrier only

    • Upper sideband only

    • Lower sideband only

    • Carrier and one sideband

    Correct Answer
    A. Carrier and one sideband
    Explanation
    With single-sideband modulation, the carrier and one sideband are discarded. Single-sideband modulation is a technique used to transmit information using only one sideband of the carrier signal, while the other sideband and the carrier itself are suppressed. This is done to conserve bandwidth and improve efficiency in signal transmission. By discarding the carrier and one sideband, the remaining sideband carries the necessary information for communication.

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  • 13. 

    (017) which best describes the intercommunication sysetem audio common ground?

    • Used for noise reduction

    • Primarily used to prevent shock

    • Connected close to each line replaceable unit

    • Completes the path for current back to the power source

    Correct Answer
    A. Used for noise reduction
    Explanation
    The intercommunication system audio common ground is used for noise reduction. This means that it helps to minimize or eliminate any unwanted or disruptive sounds that may be present in the audio signal. By providing a common ground reference point, the system can effectively reduce any interference or disturbances that could affect the quality of the audio transmission.

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  • 14. 

    (018) the intercommunication system has power whenever there is aircraft power and the intercommunication

    • Circuit breakers are closed

    • Station rotary select is set to operate

    • Monitor panel pushbutton is engaged

    • Set control master switch is depressed

    Correct Answer
    A. Circuit breakers are closed
    Explanation
    The intercommunication system in an aircraft requires power to function properly. This power is provided whenever there is aircraft power, meaning that the aircraft's electrical system is active. However, simply having aircraft power is not enough for the intercommunication system to work. The circuit breakers, which protect the system from electrical overload, must also be closed. This ensures that the electrical current can flow through the system without interruption. Therefore, the correct answer is that the intercommunication circuit breakers are closed.

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  • 15. 

    (021) a true statement concerning satellite channel allocation is that the channels are

    • Preassigned

    • Assigned randomly

    • Assigned on the basis of current need and priorities

    • Are assigned on the basis of current location of the aircraft

    Correct Answer
    A. Assigned on the basis of current need and priorities
    Explanation
    The correct answer is that satellite channels are assigned on the basis of current need and priorities. This means that the allocation of channels is determined by the specific requirements and priorities at a given time. It ensures that the channels are utilized efficiently and effectively based on the immediate needs and priorities of the satellite system. This approach allows for flexibility and adaptability in channel allocation, ensuring optimal performance and resource allocation.

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  • 16. 

    (026) what do stabilators on an aircraft control?

    • Roll and yaw

    • Pitch and yaw

    • Pitch and roll

    • Yaw and direction

    Correct Answer
    A. Pitch and roll
    Explanation
    Stabilators on an aircraft control the pitch and roll. Pitch refers to the up and down movement of the aircraft's nose, while roll refers to the side-to-side movement of the aircraft. Stabilators are typically found on the tail of the aircraft and can be adjusted to control the aircraft's attitude and stability during flight.

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  • 17. 

    (036) radar navigation systems associated with the weapons systems normally facilitate the computerized release of onboard

    • Rockets

    • Missiles

    • Nuclear bombs

    • Conventional bombs

    Correct Answer
    A. Missiles
    Explanation
    Radar navigation systems associated with weapons systems are designed to aid in the accurate release of missiles. These systems use radar technology to track and locate targets, providing crucial information to the computerized systems on board. By utilizing radar navigation, missiles can be launched with precision, increasing their effectiveness and reducing the chances of missing the intended target. Therefore, the correct answer is missiles.

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  • 18. 

    (019) what does a satellite do with the signal it receives before it retransmits it back to earth?

    • Removes the sidebands

    • Removes the center frequency

    • Filters, amplifies, and up converts.

    • Down converts, amplifies, and up converts

    Correct Answer
    A. Down converts, amplifies, and up converts
    Explanation
    A satellite down converts, amplifies, and up converts the signal it receives before retransmitting it back to Earth. Down conversion is the process of converting the received signal from a higher frequency to a lower frequency for easier processing. Amplification is necessary to strengthen the signal and compensate for any loss during transmission. Finally, up conversion is done to convert the signal back to the original frequency before transmitting it back to Earth. This process ensures that the signal is properly processed and optimized for transmission.

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  • 19. 

    (035) the main purpose of chaff when used as an electronic countermeasure is to

    • Cause a Doppler shift

    • Enhance radar returns

    • Confuse radar operators

    • Jam a specific frequency

    Correct Answer
    A. Confuse radar operators
    Explanation
    The main purpose of chaff when used as an electronic countermeasure is to confuse radar operators. Chaff is a cloud of small, lightweight metallic or plastic strips that are released into the air. When radar waves hit the chaff, they are reflected back to the radar receiver, creating multiple false targets and making it difficult for radar operators to distinguish between real targets and the chaff. This confusion can disrupt the radar system's ability to accurately track and identify targets, ultimately providing a tactical advantage to the user of the chaff.

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  • 20. 

    (037) what type of steering does the 10K adverse-terrain forklift have?

    • Bend

    • Radical

    • Articulated

    • Reverse mount

    Correct Answer
    A. Articulated
    Explanation
    The correct answer is articulated. An articulated steering system allows the forklift to have a tighter turning radius and maneuverability in tight spaces. This type of steering uses a pivot point in the middle of the vehicle, allowing the front and rear sections to move independently. This enables the forklift to navigate uneven or rough terrain more easily, making it suitable for adverse conditions.

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  • 21. 

    (007) The global positioning system (GPS) data provides all except

    • Time of day

    • Aircraft identification

    • Have-quick synchronization

    • Correction for in-flight internal navigation system (INS) alignment

    Correct Answer
    A. Aircraft identification
    Explanation
    GPS data provides various information, including the time of day, have-quick synchronization, and correction for in-flight INS alignment. However, it does not provide aircraft identification. This means that while GPS can provide accurate positioning and timing information, it does not directly identify the specific aircraft using the system.

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  • 22. 

    (012) what frequency is displayed when the radio set control switch is set to GUARD?

    • 225 MHz

    • 234 MHz

    • 243 MHz

    • 325 MHz

    Correct Answer
    A. 243 MHz
    Explanation
    When the radio set control switch is set to GUARD, the displayed frequency is 243 MHz.

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  • 23. 

    (025) Which axis extends lengthwise through the fuselage from the nose to the tail of an aircraft?

    • Lateral

    • Vertical

    • Horizontal

    • Longitudinal

    Correct Answer
    A. Longitudinal
    Explanation
    The longitudinal axis extends lengthwise through the fuselage from the nose to the tail of an aircraft. This axis is responsible for controlling the pitch motion of the aircraft, allowing it to climb or descend. It is also known as the roll axis, as it is used to control the roll motion of the aircraft, allowing it to bank left or right.

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  • 24. 

    (027) what control surface is not part of the F-15 primary flight control system?

    • Ailerons

    • Twin ruddrs

    • Stabilators

    • Flaperons

    Correct Answer
    A. Flaperons
    Explanation
    The correct answer is flaperons. Flaperons are not part of the F-15 primary flight control system. Ailerons, twin rudders, and stabilators are all control surfaces that are part of the primary flight control system of the F-15. Flaperons, on the other hand, are a combination of flaps and ailerons and are typically found on aircraft with a high aspect ratio wing, but they are not used on the F-15.

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  • 25. 

    (027) what F-16 flight control system (FLCS) components contains a force-sensing unit that contains transducers in both the pitch and roll axes?

    • Stick

    • Throttle

    • Rudder pedals

    • Integrated servo actuator

    Correct Answer
    A. Stick
    Explanation
    The correct answer is stick. The F-16 flight control system (FLCS) stick contains a force-sensing unit that contains transducers in both the pitch and roll axes. This means that the stick can sense the force applied by the pilot in both the forward/backward (pitch) and left/right (roll) directions, allowing for precise control of the aircraft's movements. The force-sensing unit is an important component of the FLCS, as it translates the pilot's inputs into commands that the aircraft's control surfaces can act upon.

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  • 26. 

    (032) multiplexing is best described as

    • A way to interface multiple aircraft systems

    • A method of communication between analog aircraft systems

    • The concept of time-sharing communication lines on the aircraft

    • The procedure of transmitting many digital signals over a single pair of wires

    Correct Answer
    A. The procedure of transmitting many digital signals over a single pair of wires
    Explanation
    Multiplexing refers to the process of transmitting multiple signals over a single channel or pair of wires. In this context, it specifically refers to transmitting many digital signals over a single pair of wires. This technique allows for efficient use of limited resources by combining multiple signals into one, which can then be transmitted simultaneously. By doing so, multiplexing enables increased data transmission capacity and effective communication between different digital systems using a single transmission medium.

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  • 27. 

    (036) what bombing system release option can be equated to a single-selected weapons release?

    • Manual

    • Computed

    • Automatic

    • Manual computed

    Correct Answer
    A. Manual
    Explanation
    The correct answer is manual. This means that the bombing system release option can be equated to a single-selected weapons release when it is done manually. This suggests that the pilot or operator has direct control over the release of the weapons and can manually select which weapons to release.

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  • 28. 

    (004) The typical tactical air navigation (TACAN) system consists of

    • Airborne interrogator-receiver and a surface beacon (UHF range)

    • Airborne interrogator-receiver and a surface beacon (VHF range)

    • Airborne beacon and surface interrogator-receiver (HF range)

    • Airborne beacon and surface interrogator-receiver (LF range)

    Correct Answer
    A. Airborne interrogator-receiver and a surface beacon (UHF range)
    Explanation
    The correct answer is airborne interrogator-receiver and a surface beacon (UHF range). This is because the TACAN system uses UHF (Ultra High Frequency) range for communication between the airborne interrogator-receiver and the surface beacon. The interrogator-receiver sends out signals to the beacon, which then responds with distance and bearing information to the aircraft. This UHF range allows for accurate and reliable navigation in both military and civil aviation applications.

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  • 29. 

    (006) What component is the heart of the F-16 inertial navigation unit (INU)?

    • Computer

    • Integrator

    • Stabilized platform

    • Performance monitor

    Correct Answer
    A. Stabilized platform
    Explanation
    The stabilized platform is the heart of the F-16 inertial navigation unit (INU). It is responsible for maintaining a stable reference frame for the navigation system, even in the presence of aircraft motion and vibrations. The platform is designed to isolate the sensors from external disturbances, ensuring accurate and reliable navigation data. It plays a crucial role in providing precise position, velocity, and attitude information to the aircraft's computer system, enabling accurate navigation and targeting capabilities.

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  • 30. 

    (009) on the combined altitude radar altimeter, an intermediate frequency of 495 kHz can represent

    • One altitude

    • Two altitudes

    • Six altitudes

    • Seven altitudes

    Correct Answer
    A. Seven altitudes
    Explanation
    On the combined altitude radar altimeter, an intermediate frequency of 495 kHz can represent seven altitudes. This means that the altimeter is capable of detecting and displaying seven different altitude levels based on the received frequency. Each frequency corresponds to a specific altitude, allowing the pilot or operator to accurately determine their altitude based on the displayed frequency.

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  • 31. 

    (015) and antenna coupler is required for high-frequency transmissions to

    • Allow the transmission of the center frequency and carrier signal from one antenna

    • Match the impedance of the antenna to the selected frequency

    • Compensate for the degree of atmospheric ionization

    • Allow the use of multiple antennas

    Correct Answer
    A. Match the impedance of the antenna to the selected frequency
    Explanation
    An antenna coupler is required for high-frequency transmissions to match the impedance of the antenna to the selected frequency. Impedance matching is important because it ensures maximum power transfer between the transmitter and the antenna. If the impedance of the antenna is not matched to the selected frequency, there will be a mismatch and a significant amount of power will be reflected back to the transmitter, resulting in inefficient transmission. Therefore, an antenna coupler is used to adjust the impedance of the antenna to match the selected frequency, allowing for optimal transmission of the center frequency and carrier signal.

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  • 32. 

    (026) what aircraft control surfaces control the movement of an aircraft about the vertical axis and produce the motion known as yaw?

    • Wings

    • Rudders

    • Flaperons

    • Elevators

    Correct Answer
    A. Rudders
    Explanation
    The correct answer is rudders. Rudders are aircraft control surfaces that control the movement of an aircraft about the vertical axis and produce the motion known as yaw. Yaw is the side-to-side movement of the nose of the aircraft. By deflecting the rudders, pilots can control the yawing motion and maintain stability during flight.

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  • 33. 

    (033) to eliminate echoes from stationary objects, the frequency-shift principle is sometimes used with what type of radar set?

    • Pulsed

    • Modulated

    • Unmodulated

    • Stationary

    Correct Answer
    A. Pulsed
    Explanation
    The frequency-shift principle is used with pulsed radar sets to eliminate echoes from stationary objects. This means that the radar emits short pulses of radio waves and then listens for the echoes. By shifting the frequency of the pulses, the radar can distinguish between moving and stationary objects. This helps in eliminating echoes from stationary objects and allows the radar to focus on detecting moving targets.

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  • 34. 

    (002) In instrument landing system operation, a deflection of two dots on the attitude direction indicator glide slope deviation scale indicates the aircraft is

    • 0.25 degrees off glide path

    • 2.5 degrees off glide path

    • 0.6 degrees off glide path

    • 6.0 degrees off glide path

    Correct Answer
    A. 0.6 degrees off glide path
    Explanation
    A deflection of two dots on the attitude direction indicator glide slope deviation scale indicates that the aircraft is 0.6 degrees off the glide path.

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  • 35. 

    (005) What type of error is caused by misalignment of the magnetic azimuth detector during installation?

    • Index

    • Coriolis

    • Hard iron

    • Transmission

    Correct Answer
    A. Index
    Explanation
    Misalignment of the magnetic azimuth detector during installation can cause an index error. This means that the readings from the detector will not accurately represent the true magnetic azimuth, leading to incorrect navigation or measurement.

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  • 36. 

    (020) what is the digital teletype data-rate capability of the Single Integrated Operational Plan terminal?

    • 75-bits per second (bps)

    • 300 bps

    • 33.6-kilobits per second (Kbps)

    • 56 Kbps

    Correct Answer
    A. 75-bits per second (bps)
    Explanation
    The correct answer is 75-bits per second (bps). This data-rate capability refers to the maximum speed at which the Single Integrated Operational Plan terminal can transmit digital teletype data.

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  • 37. 

    (034) a radar receiver produces an intermediate frequency (IF) that is the

    • Echo frequency

    • Local oscillator "beat" frequency

    • Sum of the echo frequency and local oscillator "beat" frequency

    • Difference between the echo frequency and the local oscillator "beat" frequency

    Correct Answer
    A. Difference between the echo frequency and the local oscillator "beat" frequency
    Explanation
    The correct answer is the difference between the echo frequency and the local oscillator "beat" frequency. In a radar system, the radar receiver uses a local oscillator to generate a signal that is mixed with the received echo signal. This mixing process produces a beat frequency, which is the difference between the frequencies of the two signals. By measuring this beat frequency, the receiver can determine the frequency of the echo signal, which is proportional to the distance of the target. Therefore, the intermediate frequency produced by the radar receiver is the difference between the echo frequency and the local oscillator "beat" frequency.

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  • 38. 

    (037) the total weight of a pallet of cargo secured with side nets and top net and not exceeding 96 inches in height is

    • 8,000 pounds

    • 8,355 pounds

    • 10,000 pounds

    • 10,355 pounds

    Correct Answer
    A. 10,355 pounds
    Explanation
    The total weight of a pallet of cargo secured with side nets and top net and not exceeding 96 inches in height is 10,355 pounds.

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  • 39. 

    (006) What are the two types of inertial navigation system integrators?

    • Analog and digital

    • Motion and velocity

    • Electrical and mechanical

    • Acceleration and directional

    Correct Answer
    A. Analog and digital
    Explanation
    Inertial navigation system integrators can be categorized into two types: analog and digital. Analog integrators process the input signals using continuous electrical signals, while digital integrators process the input signals using discrete numerical values. Both types of integrators are used in inertial navigation systems to calculate and integrate the inputs of acceleration and directional data, allowing for accurate navigation and positioning.

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  • 40. 

    (033) if the returned frequency from a Doppler radar set has decreased in frequency, the

    • Target is approaching the set

    • Target is moving parallel to the set

    • Distance between the target and set is decreasing

    • Distance between the target and set is increasing

    Correct Answer
    A. Distance between the target and set is increasing
    Explanation
    When the frequency from a Doppler radar set decreases, it indicates that the target is moving away from the set. This is because the frequency of the waves is directly related to the relative motion between the radar and the target. As the target moves farther away from the set, the distance between them increases, resulting in a decrease in frequency. Therefore, the correct answer is that the distance between the target and set is increasing.

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  • 41. 

    (036) the functions of a digital stores managements system are initiated by the

    • Operator

    • Main computer

    • Backup computer

    • Interface unit

    Correct Answer
    A. Operator
    Explanation
    The functions of a digital store management system are initiated by the operator. This means that the operator is responsible for starting and controlling the various functions of the system. The operator is the one who interacts with the system and initiates actions such as adding or removing products, updating inventory, and generating reports. The operator plays a crucial role in ensuring the smooth operation of the digital store management system.

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  • 42. 

    (003) What is used to guide the aircraft during an instrument approach to the active runway?

    • Microwave landing system (MLS) back azimuth transmitter

    • MLS approach azimuth transmitter

    • Glide slope

    • Localizer

    Correct Answer
    A. MLS approach azimuth transmitter
    Explanation
    The MLS approach azimuth transmitter is used to guide the aircraft during an instrument approach to the active runway. The MLS system provides precise azimuth and elevation guidance to the pilot, allowing them to maintain the correct approach path. The transmitter sends signals to the aircraft's receiver, which displays the information on the instrument panel. This helps the pilot align the aircraft with the runway and descend at the correct angle for a safe landing. The MLS approach azimuth transmitter is an essential component of instrument landing systems used in aviation.

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  • 43. 

    (001) What is true course (TC) an expression of in aerial navigation?

    • Time

    • Distance

    • Direction

    • Distance and time

    Correct Answer
    A. Direction
    Explanation
    True course (TC) is an expression of direction in aerial navigation. It refers to the angle between the true north and the direction of the aircraft's path. TC is important for pilots to accurately navigate and maintain their desired heading during flight. By knowing the TC, pilots can make adjustments to their heading based on wind direction and speed, ensuring they stay on course and reach their intended destination.

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  • 44. 

    Which mode of operation is used for security identity?

    • Mode 1

    • Mode 2

    • Mode 3/A

    • Mode 4

    Correct Answer
    A. Mode 1
    Explanation
    Mode 1 is used for security identity.

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  • 45. 

    (024) the angle of attack of an aircraft wing is the angle

    • Between the chord line and true heading

    • Between the chord line and the direction of relative wind

    • Of elevation between the aircraft pitch line and the target

    • Beween the aircraft pitch line and the surface of the earth

    Correct Answer
    A. Between the chord line and the direction of relative wind
    Explanation
    The angle of attack of an aircraft wing is the angle between the chord line and the direction of relative wind. The chord line is an imaginary line that connects the leading edge to the trailing edge of the wing. The relative wind is the airflow that is encountered by the wing as the aircraft moves through the air. The angle of attack is important because it determines the lift generated by the wing. A higher angle of attack can increase lift but may also lead to increased drag and potential stall conditions.

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  • 46. 

    (028) what does the angle of attack (AOA) transmitter use to produce its output?

    • Two pure platinum sensing elements

    • A stabilized gyroscope that detects aircraft angle

    • Two synchros that align the probe tip with the airstream

    • A movable sensing element that routes air into two synchro cavities

    Correct Answer
    A. A movable sensing element that routes air into two synchro cavities
    Explanation
    The angle of attack (AOA) transmitter uses a movable sensing element that routes air into two synchro cavities to produce its output. This sensing element detects the angle at which the aircraft is approaching the airstream, and the air flow is directed into the synchro cavities to generate the transmitter's output. This allows the AOA transmitter to provide accurate information about the aircraft's angle of attack.

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  • 47. 

    (032) the multiplexing (MUX) system time-sharing concept is best described as

    • Digital and analog information alternating on the MUX system

    • Avionics systems processing digital information at different times

    • All information that has to be processed takes turens on the same communication line

    • A method of controlling the amount of time each avionics system can communicate on a MUX line

    Correct Answer
    A. All information that has to be processed takes turens on the same communication line
    Explanation
    The correct answer suggests that in a multiplexing (MUX) system, all the information that needs to be processed takes turns on the same communication line. This means that multiple signals or data streams are combined and transmitted over a single line, and each signal is given a specific time slot to be transmitted. This allows for efficient use of the communication line and prevents conflicts between different signals.

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  • 48. 

    (032) when completion of an operation on a data bus starts the next operation, the bus is said to function

    • Concurrently

    • Consecutively

    • Asynchronously

    • Monosynchronously

    Correct Answer
    A. Asynchronously
    Explanation
    When completion of an operation on a data bus starts the next operation, the bus is said to function asynchronously. This means that the operations on the bus are not synchronized or coordinated with each other. Each operation can start and finish independently of the others, allowing for greater flexibility and potentially faster processing times.

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  • 49. 

    (037) what does the term type of airdrop refer to when talking about airdrop?

    • Way the load exits the aircraft

    • Type of cargo parachute used

    • Rate of decent of the load

    • Type of platform used

    Correct Answer
    A. Rate of decent of the load
    Explanation
    The term "type of airdrop" refers to the rate of descent of the load when talking about airdrops. This means that it pertains to how quickly or slowly the load descends from the aircraft during the airdrop operation.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 20, 2011
    Quiz Created by
    Rhetttorralba

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