3D156 : US Air Force Quiz On Airfield Systems! Trivia
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- 1.The visibility measurement set, AN/GMQ–32, has how many main assemblies?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
- 2.The visibility measurement set, AN/GMQ–32, projector and receiver, are a maximum of how many feet apart?
- A.
200
- B.
300
- C.
400
- D.
500
- 3.Where are the barometers/altimeters, AN/ML–102, usually located?
- A.
In a place with direct sunlight.
- B.
In a place with indirect sunlight.
- C.
In a place where the temperature changes.
- D.
In a place where the temperature is constant.
- 4.What is the range of wind speeds that can be measured by the automated meteorological station, AN/FMQ–19, wind sensor?
- A.
0 – 130 miles per hour (mph).
- B.
0 – 100 mph.
- C.
10 – 130 mph.
- D.
10 – 100 mph.
- 5.What is the maximum number of cloud bases the automated meteorological station, AN/FMQ–19, ceilometer can detect?
- A.
One
- B.
Two
- C.
Three
- D.
Four
- 6.What is the purpose of the blower located in the automated meteorological station, AN/FMQ–19, relative humidity/air temperature sensor?
- A.
Stop snow from accumulating around the indicator probe.
- B.
Maintain a steady air temperature for accurate measurements.
- C.
Prevent damage to electronic components during extremely hot weather.
- D.
Provide fresh air to the dewpoint indicator probe for accurate measurements.
- 7.How do the three barometer outputs provide barometric pressure data in the automated meteorological station, AN/FMQ–19?
- A.
The output with the highest value is used to determine station pressure.
- B.
The output with the lowest value is used to determine station pressure.
- C.
The three barometer output values are averaged in order to determine station pressure.
- D.
The three barometer output values are added together in order to determine station pressure
- 8.What action occurs when freezing rain accumulates on the freezing-rain sensor probe in the automated meteorological station, AN/FMQ–19?
- A.
The probe’s vibrational frequency decreases.
- B.
The probe’s vibrational frequency increases.
- C.
The probe’s capacitance decreases.
- D.
The probe’s capacitance increases.
- 9.In the automated meteorological station, AN/FMQ–19, which sensor group normally contains a complete set of sensors?
- A.
Primary sensor group.
- B.
Midfield sensor group.
- C.
Secondary sensor group.
- D.
Mid-infrared pathogen sensor group.
- 10.When would an automated meteorological station, AN/FMQ–19, midfield sensor group be installed?
- A.
When an airfield location must meet Category I criteria.
- B.
When an airfield location must meet Category II criteria.
- C.
When an airfield location must meet Category III criteria.
- D.
When an airfield location must meet Category IV criteria.
- 11.A typical air traffic control tower console is made up of how many operator positions in the enhanced terminal voice switch?
- A.
Three
- B.
Four
- C.
Five
- D.
Six
- 12.Where is the enhanced terminal voice switch maintenance position located?
- A.
In the bottom floor of the air traffic control (ATC) tower.
- B.
In the central equipment racks.
- C.
At the transmit/receive site.
- D.
In the ATC tower cab.
- 13.What capabilities can be provided at the enhanced terminal voice switch maintenance position?
- A.
System monitor capability only.
- B.
The same as at any operator position.
- C.
All functions accept operator position monitor.
- D.
All functions accept active tower-to-aircraft channels.
- 14.What piece of equipment is the primary means of communication control and the interface between the operator and central equipment in the enhanced terminal voice switch?
- A.
Operator communications unit.
- B.
Tower electronic device.
- C.
Operator control unit.
- D.
Touch entry display.
- 15.What operating system does the supervisor configuration terminal of the enhanced terminal voice switch use?
- A.
DOS.
- B.
Linux.
- C.
Windows 98.
- D.
Windows XP.
- 16.Which enhanced terminal voice switch assembly is capable of changing system passwords and displaying system fault location?
- A.
Local position.
- B.
Flight data position.
- C.
Supervisory configuration terminal.
- D.
Configuration and control subsystem.
- 17.Redundancy of the enhanced terminal voice switch is accomplished by allowing how many radio processor cards to be associated with each frequency?
- A.
Four.
- B.
Three.
- C.
Two.
- D.
One.
- 18.Which enhanced terminal voice switch assembly is responsible for interfacing between the demarcation panel and radio processor cards?
- A.
Radio distribution panel.
- B.
Radio conferencer panel.
- C.
Supervisory configuration terminal.
- D.
Radio subsystem configuration panel.
- 19.How many telephone lines are provided by each telephone processor in the enhanced terminal voice switch?
- A.
Four.
- B.
Three.
- C.
Two.
- D.
One.
- 20.In the enhanced terminal voice switch during radio communications, in what form does microphone audio travel from the operator position to the central equipment?
- A.
Encrypted.
- B.
Digital.
- C.
Analog.
- D.
Cipher.
- 21.In the digital voice recording system (DVRS), what controls the operation of the digital recording unit?
- A.
Touch entry display.
- B.
Supervisor configuration terminal.
- C.
DVRS workstation.
- D.
Gateway interface cards.
- 22.The uninterruptible power supply for the digital voice recording system is designed to provide power for
- A.
One minute.
- B.
Two minutes.
- C.
Three minutes.
- D.
Five minutes.
- 23.In the digital voice recording system, what is the recording capacity of each digital audiotape?
- A.
100 linear hours.
- B.
500 linear hours.
- C.
750 linear hours.
- D.
1000 linear hours.
- 24.In the digital voice recording system, how many satellites need to be acquired by the global positioning system receiver for an accurate time stamp?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
- 25.The alarms on the digital voice recording system alerts users when channels are
- A.
Inactive.
- B.
Shifting.
- C.
Off-key.
- D.
Active.
- 26.When does the digital voice recording system digital recording unit copy hard drive information to a digital audiotape?
- A.
Continuously.
- B.
Every 15 minutes.
- C.
Every 30 minutes.
- D.
Only when prompted by an operator.
- 27.The tactical air navigation system, AN/TRN–26, provides radio navigation information for up to how many aircraft simultaneously?
- A.
100.
- B.
120.
- C.
150.
- D.
170.
- 28.Upon the detection of parameter faults, the tactical air navigation system, AN/TRN–26, transponder will
- A.
Stop emitting squitter.
- B.
Switch frequencies.
- C.
Ignore all faults.
- D.
Shutdown.
- 29.Based on technical data, how many people does it take to set up the tactical air navigation system, AN/TRN–26, in less than one hour?
- A.
Two.
- B.
Four.
- C.
Six.
- D.
Eight.
- 30.The antenna height of the tactical air navigation system, AN/TRN–26, is adjustable between
- A.
1.5 and 8.5 feet above ground level.
- B.
3.5 and 8.5 feet above ground level.
- C.
6.5 and 10 feet above ground level.
- D.
7.5 and 10 feet above ground level.
- 31.The tactical air navigation system, AN/TRN–26, antenna support consists of how many major components?
- A.
Five.
- B.
Four.
- C.
Three.
- D.
Two.
- 32.The tactical air navigation system, AN/TRN–26, has time-coded pulses transmitted on any one of the
- A.
126 channels spaced 1-MHz apart.
- B.
128 channels spaced 1-MHz apart.
- C.
126 channels spaced 2-MHz apart.
- D.
128 channels spaced 2 MHz apart.
- 33.Which parameter is continuously monitored by the tactical air navigation system, AN/TRN– 26’s, radio frequency monitor?
- A.
Peak power.
- B.
Sideband amplitude.
- C.
Modulation percentage.
- D.
Antenna rotation speed.
- 34.Under normal operating conditions at remote locations, what powers the tactical air navigation system, AN/TRN–26?
- A.
Direct current generator set.
- B.
120 volt alternation current generator.
- C.
Nickel-cadmium rechargeable battery.
- D.
Silver-zinc rechargeable battery.
- 35.The tactical air navigation system, AN/TRN–26, requires what operating voltage?
- A.
12 VDC.
- B.
24 VDC.
- C.
28 VDC.
- D.
32 VDC.
- 36.How many test interrogations per second do the radio frequency monitors route into the tactical air navigation system, AN/TRN–26?
- A.
7200.
- B.
900.
- C.
100.
- D.
25.
- 37.What does the tactical air navigation system, AN/TRN–26, receiver-transmitter do to hold the average output power level constant?
- A.
Increases reply pulse spacing.
- B.
Increases antenna rotation rate.
- C.
Adjusts output modulation levels.
- D.
Inserts random squitter transmissions.
- 38.What determines the rotational speed of the tactical air navigation system, AN/TRN–26, antenna drive motor?
- A.
Applied current.
- B.
Applied voltage.
- C.
Phase of applied voltage.
- D.
Frequency of applied voltage.
- 39.How many parasitic director elements are mounted on the drum of the tactical air navigation system, AN/TRN–26, antenna?
- A.
7
- B.
8
- C.
9
- D.
10
- 40.The power supply in the tactical air navigation system, AN/TRN–26, converts the primary power to secondary regulated voltages of
- A.
+200, +25.2, +12.6, and –12.6 volts direct current (DC).
- B.
+200, +25.2, +12.6, and –12.6 volts alternating current (AC).
- C.
+25.2, +12.6, and –12.6 volts DC.
- D.
+25.2, +12.6, and –12.6 volts AC.
- 41.A lightweight, portable, tactical air navigation system designed to provide a combat control team with a navigational aid is the
- A.
AN/GMQ–33.
- B.
AN/TMQ–36.
- C.
AN/TRN–26.
- D.
AN/TRN–41.
- 42.The tactical air navigation system, AN/TRN–41, can provide azimuth, distance, and identification information for how many aircraft simultaneously?
- A.
100.
- B.
120.
- C.
150.
- D.
170.
- 43.The primary power source for the tactical air navigation system, AN/TRN–41, is
- A.
A nickel-cadmium rechargeable battery.
- B.
A silver-zinc rechargeable battery.
- C.
Any 115/220 volts, alternating current source.
- D.
A diesel powered generator.
- 44.The tactical air navigation system, AN/TRN–41 as a system, can operate on what tactical air navigation (TACAN) channels?
- A.
All “Y” channels.
- B.
All “X” channels.
- C.
All TACAN channels.
- D.
“X” high band channels only.
- 45.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
- A.
962–1213MHz.
- B.
962–1413MHz.
- C.
1062–1213 MHz.
- D.
1062–1413 MHz.
- 46.The tactical air navigation system, AN/TRN–41 antenna support assembly allows the antenna to be set up on a slope of up to
- A.
4 degrees.
- B.
7.5 degrees.
- C.
10 degrees.
- D.
15 degrees.
- 47.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?
- A.
One dB.
- B.
Three dB.
- C.
Six dB.
- D.
Nine dB.
- 48.The power output of the tactical air navigation system, AN/TRN–41 is greater than
- A.
100 watts peak.
- B.
200 watts peak.
- C.
300 watts peak.
- D.
1000 watts peak.
- 49.How long does it take the tactical air navigation system, AN/TRN–41, antenna to come up to its operating speed?
- A.
5 seconds.
- B.
10 seconds.
- C.
30 seconds.
- D.
60 seconds.
- 50.The tactical air navigation system, AN/TRN–41, the battery can supply power for full system operation for
- A.
72 hours.
- B.
24 hours.
- C.
12 hours.
- D.
4 hours.
- 51.The tactical air navigation system, AN/TRN–41, has how many modes of operation?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
- 52.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?
- A.
Tactical air navigation mode.
- B.
Distance measuring equipment only mode.
- C.
Demand only mode.
- D.
Continuous wave jamming avoidance mode.
- 53.The tactical air navigation system, AN/TRN–41, can provide azimuth and identity information to how many aircraft simultaneously?
- A.
Up to 100.
- B.
Up to 120.
- C.
Up to 150.
- D.
An unlimited number.
- 54.Which of the tactical air navigation system, AN/TRN–41, pulse-modulated signals has the highest transmission priority?
- A.
Station identification.
- B.
North reference burst.
- C.
Auxiliary reference burst.
- D.
Distance measuring signal.
- 55.The tactical air navigation system, AN/TRN–41, overall reply delay for “X” channel interrogations is
- A.
30±0.1 μs.
- B.
50±0.1 μs.
- C.
70±0.1 μs.
- D.
75±0.1 μs.
- 56.The total interrogation plus squitter rate for the tactical air navigation system, AN/TRN–41, is
- A.
2500± 90 pulses per second.
- B.
2700± 90 pulses per second.
- C.
3500± 90 pulses per second.
- D.
7200± 90 pulses per second.
- 57.The tactical air navigation system, AN/TRN–41, will indicate an alarm condition if a monitored parameter exceeds its alarm limits continuously for approximately
- A.
30 seconds.
- B.
15 seconds.
- C.
10 seconds.
- D.
5 seconds.
- 58.Relative distance information is provided to aircraft by the mobile microwave landing system, AN/TRN–45, by
- A.
Mobile microwave marker beacons.
- B.
Elevation transmitting equipment.
- C.
Azimuth transmitting equipment.
- D.
Distance measuring equipment/precision transponder equipment.
- 59.When a mobile microwave landing system, AN/TRN–45, is installed as a collocated site, where are the azimuth and elevation stations placed?
- A.
At opposite ends of the runway.
- B.
Together near the runway stop end.
- C.
Together near the runway approach end.
- D.
At opposite ends of the runway taxiway.
- 60.What category of operation is the mobile microwave landing system, AN/TRN–45, capable of when installed in a split-site configuration?
- A.
CAT I or CAT II.
- B.
CAT II or CAT III.
- C.
CAT I only.
- D.
CAT II only.
- 61.What information is supplied to the aircraft by the basic and auxiliary data transmission in the mobile microwave landing system, AN/TRN–45?
- A.
Distance to runway threshold.
- B.
Vertical and horizontal guidance.
- C.
Category of approach information.
- D.
Course and glidepath width information.
- 62.A condition that will cause a complete shutdown of the mobile microwave landing system, AN/TRN–45, is the shutdown of the
- A.
Azimuth equipment.
- B.
Elevation equipment.
- C.
Distance measuring equipment/precision (DME/P) and elevation equipment.
- D.
DME/P equipment.
- 63.A failed built-in test will be displayed in the mobile microwave landing system, AN/TRN– 45, at the
- A.
DME/P electronic unit (DEU) only.
- B.
Remote control/display unit (RC/DU) only.
- C.
DEU, RC/DU, or elevation (EL) control electronic unit (CEU) only.
- D.
DEU, RC/DU, EL CEU, or azimuth (AZ) CEU.
- 64.How many functional groups is the tactical control tower, AN/MSN–7, composed of?
- A.
Four.
- B.
Five.
- C.
Six.
- D.
Seven.
- 65.On improved roads the tactical control tower, AN/MSN–7, can be driven up to
- A.
50 mph.
- B.
55 mph.
- C.
60 mph.
- D.
65 mph.
- 66.During normal operation of the tactical control tower, AN/MSN–7, what voltage powers most shelter equipment?
- A.
+12 VDC.
- B.
+28 VDC.
- C.
+48 VDC.
- D.
115 VAC.
- 67.How many sensors within the meteorological functional group provide wind speed, wind direction, and temperature data in the tactical control tower, AN/MSN–7?
- A.
Two.
- B.
Three.
- C.
Four.
- D.
Five.
- 68.In the tactical control tower, AN/MSN–7, how many VHF/UHF amplitude modulated portable transceivers in the communications shelter functional group?
- A.
Five.
- B.
Six.
- C.
Seven.
- D.
Eight.
- 69.What assembly monitors the various functional groups in the tactical control tower, AN/MSN–7?
- A.
Monitor control panel.
- B.
Local operating network.
- C.
Environmental control unit.
- D.
Land mobile radio.
- 70.How many radios are there in the normal configuration of the runway control structure?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
- 71.What encompasses the majority of the missions the AN/TRC–176 radio is used for?
- A.
Air-to-ground.
- B.
Air-to-air.
- C.
Ground-to-ground.
- D.
Ground-to-air.
- 72.What major improvement does the AN/GRC–171BV4 Have-Quick-Radio possess that the AN/GRC–171 radio does not have?
- A.
Amplitude modulation capability.
- B.
Frequency demodulation capability.
- C.
Hydraulic actuated servo tuning.
- D.
Electronically tuned preselector which replaces the servo.
- 73.What radio system provides simplex HF radio communications capabilities in the 1.6 to 29.999 MHz (10 Hz synthesized steps) frequency range?
- A.
AN/GRC–171.
- B.
AN/URC–119.
- C.
AN/FRN–45.
- D.
AN/FMQ–19.
- 74.What radio system normally provides up to 500 watts of transmitted power with a power amplifier?
- A.
AN/FMQ–19.
- B.
AN/FRN–45.
- C.
AN/GRC–171.
- D.
AN/URC–119.
- 75.What is the primary radar coverage of the AN/MPN–14K radar shelter?
- A.
30 nm.
- B.
60 nm.
- C.
90 nm.
- D.
120 nm.
- 76.What item is required to provide opposite direction runway operations of the AN/MPN– 14K radar shelter?
- A.
Transportable turntable.
- B.
Bi-directional coupler.
- C.
Secondary radar.
- D.
Primary radar.
- 77.The precision approach radar in the AN/TPN–19 provides both azimuth and elevation information from?
- A.
20 nautical miles (nm) to touchdown.
- B.
19 nm to touchdown.
- C.
18 nm to touchdown.
- D.
17nm to touchdown.
- 78.What type of equipment could be used to determine ionospheric conditions and how they would affect radio propagation impacting Department of Defense systems?
- A.
AN/TPN–19.
- B.
AN/FMQ–12.
- C.
AN/MPN–12.
- D.
AN/GRC–171B(V)4.
- 79.Light guns serve the purpose of signaling the aircraft, vehicles, and personnel on the
- A.
Adjacent roads.
- B.
Runways and taxiways.
- C.
Roads adjacent to the navigational equipment.
- D.
Gravel pavement adjacent to the navigational equipment.
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