Ground Radar Systems Journeymen CDC 4-6 #2
One shops CDC practice test. Also, if some are off. Please Tell me. Thanks
- 1.The maximum allowable percent of ground slope for the radar antenna pallet is
- A.
4%
- B.
6%
- C.
10%
- D.
15%
- 2.The north mark alignment insures that your antenna oriented to within
- A.
±.25 degrees north
- B.
.5degrees north
- C.
1degrees north
- D.
2degrees north
- 3.What is the relationship of the STALO frequency to the transmit frequency in the
- A.
The STALO is 16MHz below the transmit frequency.
- B.
The STALO is 16MHz above the transmit frequency.
- C.
The STALO is 32 MHz below the transmit frequency.
- D.
The STALO is 32 MHz above the transmit frequency.
- 4.The range and azimuth correlation of IFF and radar returns is accomplished in the
- A.
IF receivers
- B.
Post processor
- C.
Signal processor
- D.
PPI
- 5.How many modes of communication are provides to the operator in the TPS-75 radar by the communications system?
- A.
4
- B.
5
- C.
6
- D.
7
- 6.The radars initialization function in the TPS-75 is performed
- A.
Manually by the operator
- B.
Manually at system power-up
- C.
Automatically at system power-up
- D.
Automatically by the radar control panel
- 7.The serial communication interface, part of the radar control function in the TPS-75, provides a link between the radar control unit and the
- A.
Six system microprocessor.
- B.
Eight system microprocessor.
- C.
Multibus and other system unit.
- D.
MIG rack, clutter mapper, and synchronizer.
- 8.What is the frequency of the master clock signal provided by the frequency generator to the processing timing generator in the TPS-75 radar?
- A.
4Mhz
- B.
8Mhz
- C.
16Mhz
- D.
32Mhz
- 9.What are the PRT modes for the TPS-75 radar?
- A.
Fixed, staggered, or burst.
- B.
Fixed, staggered, pulsed.
- C.
Selected, controlled, burst.
- D.
Selected, controlled, or pulse
- 10.In the TPS-75 radar, a JATS jump signal is generated every
- A.
180° of antenna rotation
- B.
360 of antenna rotation
- C.
405 of antenna rotation
- D.
540 of antenna rotation
- 11.The most commonly used and normally maintenance free reflecter used for the used for the GPN-22 precision approach radar is the
- A.
Moving target indicator reflector
- B.
Center-line reflector
- C.
Reference reflector
- D.
Bracket reflector
- 12.In the GPN-22 precision approach radar frequency diversity is used in the scan mode to eliminate
- A.
Weather returns
- B.
Large target fluctuations only
- C.
Large target fluctuations and weather returns
- D.
Large target fluctuations and provide target enhancement
- 13.In the GPN-22 precision approach radar, the coherent and non-coherent input signal data converter is
- A.
Unipolar video
- B.
Bipolar video
- C.
Canceled unipolar video
- D.
Canceled bipolar video
- 14.Once a track is established in the GPN-22 precision approach radar, what device uses error data obtain from the received signal predict where the target will be during the next track interval
- A.
Target data computer (TDC)
- B.
Signal data computer (SDC)
- C.
Computer data entry module (CDEM)
- D.
Antenna beam position control (ABPCU)
- 15.How many narrow band filters does GPN-22 precision approach radar (PAR) employ to convert a shift in IF to a range error signal?
- A.
24
- B.
37
- C.
74
- D.
137
- 16.During the target tracking cycle, in the GPN-22 precison approach radar (PAR). How many tracks does it employ to convert a shift in IF to a range error signal?
- A.
3
- B.
4
- C.
5
- D.
6
- 17.At what interval does the target data computer (TDC) perform system fault monitoring?
- A.
Every PRT
- B.
Once every 2 secondsc.
- C.
Once per track interval
- D.
At beam interrupt signal time
- 18.In the GPN-22 precison approach radar (PAR), what are the three modes of operation with respect to the data loop operation?
- A.
Command, input, and output
- B.
Command, open-loop, closed-loop
- C.
Diagnostic, operational, coherent
- D.
Data point, closed-loop, self-test
- 19.The data loop interface logic circuitry used in each of the subsystem is commonly called
- A.
One’s component
- B.
Repeater logic
- C.
Closed-loop
- D.
Open-loop
- 20.Which if the following is not part of the siting info requested by the target data computer from the computer data entry(CDE)?
- A.
Safety zone
- B.
Elevation angle
- C.
Distance to taxiway
- 21.Which indicator component’s main purpose is to control the intensity of CRT electron beam?
- A.
Deflection circuits
- B.
Video circuits.
- C.
Power Supply
- D.
Cathode-ray tube.
- 22.Digital display data from the data processing circuits is converted into analog drive signal in the
- A.
Deflection circuits
- B.
Video circuits
- C.
Power supply
- D.
CRT
- 23.Electromagnetic deflection is accomplished by applying
- A.
Current through the two deflection plates
- B.
Triggers to the two deflection plates
- C.
Current through the deflection coil.
- D.
Triggers to the deflection coil
- 24.The vacuum in a cathode-ray tube (CRT)
- A.
Prevents implosion if the CRT is broken.
- B.
Keeps the phosphor coating from burning
- C.
Eliminates static charges on the deflection plates
- D.
Prevents collision between electrons in the beam and air molecules
- 25.Is the leading edge-to-edge edge spacing between P1 and P3 of Mode 3?
- A.
0.45 µsec.
- B.
3 µsec.
- C.
5 µsec.
- D.
8 µsec.
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