2A851N Cdc Vol 5

Front 1

Which part of a radar set amplifies and converts an RF wave into a video signal?

Back 1

Receiver

Front 2

How long in microseconds does it take an RF wave to travel a radar mile?

Back 2

12.4 microseconds

Front 3

If a radar echo returns after 310 microseconds, how far away is the target?

Back 3

25 miles

Front 4

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

Back 4

Pulse-Modulation

Front 5

Accurate location of an object in space by radar pulses depends upon both

Back 5

range and direction

Front 6

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

Back 6

Power supply

Front 7

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

Back 7

Antenna

Front 8

The screen display on newer types of pulse-modulation radar indicators is called a

Back 8

map

Front 9

in a frequency-shift radar system, the Doppler principle makes it possible to instantaneously sense and measure

Back 9

ground speed and drift angle

Front 10

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?

Back 10

The aircraft is flying towards the transmitter/receiver

Front 11

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?

Back 11

The aircraft is flying away from the transmitter/receiver

Front 12

What are types of power loss in radio frequency lines?

Back 12

copper, dielectric, and radiation

Front 13

If the spacing between the waveguide walls are size of the walls changes, then there will be a change in impedence causing decreased

Back 13

power

Front 14

what is the most common device used to commect multiple sections of a waveguide system?

Back 14

Choke-joint

Front 15

The function of a dummy load in a search and weather radar is to

Back 15

simulate a resistive load

Front 16

What circuit is triggered when the AS-653C radar antenna reflector rotates through the aircraft lubber line?

Back 16

Heading marker

Front 17

Which component in the AN/APN-59 radar system furnishes both pitch and roll drive signals to the antenna stabilization motors?

Back 17

AM-853B

Front 18

What is the maximum heigh that the CARA system computes aircraft altitude above ground level?

Back 18

50,000 feet

Front 19

If your aircraft has two CARA systems installed, then how many associated antennas will be installed?

Back 19

four

Front 20

When reporting altitudes above 100 feet, the digital altitude display of the CARA indicates increments of

Back 20

ten feet

Front 21

What are all of the functions of the SET knob located on the combined altitude radar altimeter indicator?

Back 21

as an on/off control, to set the VALI indivator, and as a test button to check the system

Front 22

During the CARA radar altitude indicator's bright lighting conditions, the ambient light sensor serves to

Back 22

override the dimmer control knob

Front 23

What is the maximum altitude that the analog pointer and dial of the CARA's radar altitude indicator can display?

Back 23

5,000 feet

Front 24

If self-test is manually initiated on the CARA, then for 1.5 seconds the radar altitude indicator will display an illuminated R/T lamp, the pointer will move to

Back 24

500 feet, and the digital display will read 88888

Front 25

What is the average operating power in watts of the LPCR system?

Back 25

11 W or less

Front 26

Which radar application is used to fly along a preselected altitude above the ground?

Back 26

terrain following

Front 27

Which radar application sends data to compute time-to-go parameters?

Back 27

bombing radar

Front 28

What establishes the network system time for a Link-16 system?

Back 28

NTR

Front 29

To enhance voice clarity on TADIL J secure digitized voice channels, the operator will select a Kb/s voice rate of

Back 29

16 Kb/s

Front 30

If a unit has the need and capability to participate in both Link-16 and older Link systems, then it will normally be assigned an address between

Back 30

00001 to 00177

Front 31

Which of the following fields does the Link-16 friendly status reports contain?

Back 31

Equipmen status

Front 32

The elapsed time indivator of the R/T indicates the time power has been

Back 32

applied to the R/T

Front 33

If you have a fail indication on the JTIDS digital data processor, then pressing the RESET pushbutton switch on the DDP will reset the fault indicator

Back 33

if the related fault cause was corrected

Front 34

Which subassembly is a part of the CMS?

Back 34

SDCU

Front 35

When transmitting in the high power mode, what is the power output in Wp of the high power amplifier of the JTIDS?

Back 35

1050 Wp

Front 36

What power source is used to provide emergency back-up power to the JTIDS terminal to maintain critical data?

Back 36

Nickel-cadmium batteries

Front 37

What is the range in MHz of signals that the low pass filter passes?

Back 37

960-1215 MHz

Front 38

What is the operating band used by the JTIDS?

Back 38

L

Front 39

How many bits of data can be transmitted in a given time slot of a JTIDS?

Back 39

930

Front 40

When can the JTIDS synchronization process be initiated?

Back 40

Every 12 seconds when a Net Entry message is transmitted

Front 41

What are the two processes in which JTIDS fine synchronization are accomplished?

Back 41

Passive and Active

Front 42

IF the JTIDS entrant is attempting to acheive fine syncrhonization by transmitting a round trip time interrogation, then what process is being used?

Back 42

Active

Front 43

Which component of the tactical information gateway system enables beyond line-of-sight coverage?

Back 43

satellite communications/global positioning system antenna

Front 44

What is the purpose of the MIDS data link terminal?

Back 44

Provide LOS connectivity to a local area network

Front 45

To prevent interference and possible terminal shutdowns, what systems are monitored by the TIG system?

Back 45

IFF, ETCAS, and TACAN

Front 46

Which is a MIL-STD 1553 bus standard requirement?

Back 46

Information will be transferred in a reliable, deterministic, command/response fashion

Front 47

What is the structure of a MIL-STD 1553 data word?

Back 47

20 bits long; 3 sync bits, 16 data/command/status bits; 1 parity bit

Front 48

Which of these is not a function of the MIL-STD 1553 data bus mode codes?

Back 48

Executing a BC broadcast command

Front 49

If a BC sends a command for all RTs to listen to data from another RT, then what type of command is being sent on the MIL-STD 1553 data bus?

Back 49

Broadcast command

Front 50

The basic element in a computer microchip is

Back 50

silicon

Front 51

Chips with circuits that can do the work of all the different parts of a computer are called

Back 51

microprocessors

Front 52

What part of a computer acts like a sophisticated switchboard operator?

Back 52

Control unit

Front 53

Where does the arithmetic/logic unit of a computer store the intermediate results of arithmetic operations?

Back 53

Registers

Front 54

To synchronize the processing of input/output oerations and provide an overlap of operations, the computer uses

Back 54

buffers

Front 55

The primary computer memory that usually cannot be erased is called

Back 55

ROM

Front 56

Random access memory is used to

Back 56

store information being caluclated by the computer

Front 57

The resolution of a computer monitor is expressed in the number of pixels that make up the image; therefore, the sharper the image,

Back 57

the higher the resolution

Front 58

Using a text based method to display characters and objects on a computer display refers to

Back 58

information displayed in the form of printed characters

Front 59

Internet protocols can best be described as a

Back 59

way to communicate across interconnected networks

Front 60

the technique where blocks of data can be segmented into numerous blocks so sequential blocks can be written to different physical mediums is

Back 60

data stripping

Front 61

which RAID parity is distributed across all drivers and elminates a bottleneck?

Back 61

RAID-5

Front 62

the power meter is used to measure

Back 62

either absolute or relative power

Front 63

What power meter control compensates for a slight sensitivity associated with a particular type of power sensor?

Back 63

CAL ADJ

Front 64

A power snesor is essentially a

Back 64

transducer

Front 65

The power sensor is used to determine the active frequency range and power range within the design parameters of the

Back 65

power meter

Front 66

When calibrating the power sensor, you adjust the CAL ADJ control so that the digital readout indicates

Back 66

1.000W

Front 67

If you want to measure relative power using a power meter, you would first apply the power level and then press

Back 67

dB REF

Front 68

Which piece of test equipment uses electromagnetic wave pulses to create a visual display of cable faults?

Back 68

Time domain reflectometer

Front 69

Damage to the sampling gate or tunnel diode of a TDR indicates voltages exceeding

Back 69

5V was applied

Front 70

To test the cable on the TDR, use the standard

Back 70

36-inch, 50 ohm cable

Front 71

What measurements are performed with the RFLTS when a fault is suspected in an RF transmission path because of unacceptable insertion loss

Back 71

Distance-to-fault measurements

Front 72

Before power is connected to RFLTS, you must ensure ON/POWER/OFF switch is in the OFF position and a suitable grounding strap is connected between the grounding luf on the right side of the RFTLTS unit 1 and the

Back 72

aircraft

Front 73

Which unit of the RFLTS is the accecory kit?

Back 73

2

Front 74

The model 4328A milliohmeter has a resistance measurement range of

Back 74

.001 to 100 ohms

Front 75

To avoid measurement errors due to electromagnetic forces, the model 4328A utilizes a

Back 75

1 KHz signal

Front 76

The model 4328A milliohmeter can maintain continuous battery operation for

Back 76

8 hours

Front 77

When using the 1 and 3 milliohm range on the model 4328A milliohmeter, how far away from conducting surface should the probes and cables be placed?

Back 77

10 centimeters

Front 78

Which torque wrench uses a micometer-type markings

Back 78

type III

Front 79

If you are going to torque a self-locking nut to 50-70 inch-pounds and the technical order states that the prevailing torque is 30 inch-pounds, then the complensated torque reading should be

Back 79

set to 80-100 inch-pounds

Front 80

Before using a dropped torque wrench, you must

Back 80

have it recalibrated

Front 81

The four basic functions of a data bus analyzer include data display, error

Back 81

loggings and analysus, simulation, and playback of data

Front 82

What basic function of a data bus analyzer provides the ability to introduce an error condition into the data to permit an analysis of how the system will behave?

Back 82

Simulation

Front 83

The external keyboard assembly of the SBA-100F bus analyzer uses a standard QWERTY format with

Back 83

an 18 key HEX format that is detachable from the main chassis

Front 84

On the SBA-100F bus analyzer, a yellow XMIT indicator means the analyzer is

Back 84

transmitting as a bus controller

Front 85

Sealants used on airframes keep out water,fumes, and the atmosphere to protect against

Back 85

corrosion

Front 86

What type of sealant has an application time during which the sealant remains suitable for use?

Back 86

Curing type

Front 87

When the confidence test is performed, which APX-64 transponder R/T module's gain is increased?

Back 87

IF amplifier

Front 88

If you are in test mode when using the TS-1438A transponder test set, then which IFF modes can be checked?

Back 88

1, 2, 3/A, and C

Front 89

What reply characteristics of the IFF transponder are analyzed when the TS-1843A test set is used in the MONITOR mode?

Back 89

Transmitter frequency, transmitter power, bracket pulse spacing, and antenna VSWR

Front 90

How many transponder test sequences can be initated by the TS-3977 on a continous use basis with fully charged battery stick?

Back 90

300

Front 91

When the TS-3977 test set battery voltage is low,

Back 91

six of the seven deciam points flash on and off

Front 92

When pressing the TEST RPT button on the transponder TS-3977 test set while aiming the antenna at the ground, the test code indication should be

Back 92

O

Front 93

You should remove the battery if the TS-3977 transponder test set it to be idle

Back 93

24 hours

Front 94

How many types of tests can be performed on a TACAN system with the ARM-184 flightline test set?

Back 94

6

Front 95

Which TACAN checks should not be performed when using the ARM-184 flightline test set during connection to the radiating transponder?

Back 95

Transmitter power and receiver sensitivity

Front 96

The flightline test set measures the tracking ability of the TACAN range circuits up to a maximum of

Back 96

132 nmi

Front 97

If you turn the Bearing CW/CCW switch on the ARM-184 flightline test set, then the indicator should increase or decrease at an angular rate of

Back 97

5 degrees per second

Front 98

If the ARM-186 VOR/ILS ramp test set AMBER power indicator is on, how much operation time remains on the battery charge?

Back 98

0-1 hour

Front 99

The ARM-186 VOR/ILS test set RED power lamp is illuminating. In this situation, the battery should be recharged for a minimum of

Back 99

36hours

Front 100

The ARM-186 VOR/ILS test set provides RF attenuation for signals over 110 dB range in the increment of

Back 100

1 dB