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CDC > main v2 > Flashcards

main v2 Flashcards

1
Q

The thin plastic colored tape that spirals around a specific number of pairs that replicate in a cable is called a…?

A

Binder

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2
Q

In telecommunications cables, the “tip” or “primary” color group order is…?

A

White, red, black, yellow, and violet

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3
Q

What colors make up the “ring” or “secondary” color code for telecommunications cables?

A

Blue, orange, green, brown, and slate

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4
Q

What standard do most newly installed network cables follow?

A

T568B

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5
Q

Two types of network cables are…?

A

Straight through and crossover

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6
Q

How do you determine which type of fiber optic lubricant to use during installation?

A

Refer to the manufacturers product data

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7
Q

When installing fiber optic cable on a horizontal run, the cable must be secured every…?

A

36 inches

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8
Q

What device is used to secure the pulling line to the strength members of the cable?

A

Pulling grip

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9
Q

How is unauthorized access to the configuration screens of a channel bank prevented?

A

Password protection

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10
Q

Why is it important for a channel bank to have a modular design?

A

It allows expansion with minimal cost

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11
Q

Any repair of electronic equipment should begin with…?

A

symptom recognition

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12
Q

Which troubleshooting method traces the system path, in order, step by step, until the problem is solved?

A

sequential

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13
Q

Which troubleshooting method divides the circuit in half with each step?

A

half-split

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14
Q

What test can determine if a cable is operating correctly?

A

continuity

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15
Q

What additional step is required when troubleshooting a multi-wire cable that is not required when troubleshooting a single-wire cable?

A

ensure no continuity between the wire under test and any additional wire

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16
Q

A reading of zero during a continuity test indicates…?

A

the signal travels down the entire length of the cable uninterrupted

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17
Q

What are the 3 main functions of grounding?

A

personnel safety, equipment protection, and noise reduction

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18
Q

Which facility ground subsystem uses surge arrestors?

A

lightning protection

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19
Q

What facility ground subsystem is also called the safety ground?

A

fault protection

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20
Q

Establishing a low impedance path between two metal surfaces is called…?

A

bonding

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21
Q

Bonds in the earth electrode system normally are direct permanent bonds and do not exceed a resistance of how many milliohms?

A

1

22
Q

What kind of bond is normally applied to signal reference?

A

mechanical

23
Q

The two basic functions of shielding are to…?

A

Prevent interference between multiple emanating systems and minimize compromising emanations

24
Q

The designation RED is applied to equipment processing what type of information?

A

Clear-text classified

25
Q

What is believed to draw lightning to air terminals?

A

Streamers

26
Q

What assures that all metal masses are of the same electrical potential?

A

Bonding

27
Q

At how many points should the external grounding system be bonded?

A

1

28
Q

A stored electrical charge at rest is referred to as…?

A

Static electricity

29
Q

Extremely sensitive electronic devices can be damaged by as little as how many bolts?

A

25

30
Q

Always assume all on marked electronic assemblies, subassemblies, and components are likely…?

A

Sensitive to electrostatic discharge

31
Q

Items sensitive to electrostatic discharge must only be handled…?

A

At certified ESD workstations using a wrist strap

32
Q

What item is the most important when handling items sensitive to electrostatic discharge?

A

Wrist strap

33
Q

The average kinetic energy of the molecules in the air is called…?

A

Temperature

34
Q

What indicates the temperature to which a given parcel of air must be cooled, with constant water vapor content and pressure, to reach saturation?

A

Dew point

35
Q

Which is not a distinctive parameter or observation standard for wind?

A

Peak wind shift

36
Q

What characteristic is the measure of the opacity of the atmosphere and measure of the distance at which an object or light can be clearly discerned?

A

Visibility

37
Q

Which barometric pressure parameter indicates the altitude above mean sea level of an aircraft on the ground at the location for which the value was determined?

A

Altimeter setting

38
Q

Which factor is not used in calculating dew point?

A

Dry-bulb depression

39
Q

How many feet above the ground are most automated weather station visibility sensors mounted?

A

10

40
Q

What instrumentally derived value is calculated using different elements of visibility, ambient light level, and runway light intensity?

A

Runway visual range

41
Q

Station pressure is determined by adjusting the corrected barometric pressure to compensate the difference between the height of the barometer and the…?

A

Designated station elevation

42
Q

How many feet is the measurement range for most ceilometers?

A

30 to 25,000

43
Q

What high power, dual polarization Doppler radar is used to detect, process, distribute, and display radar weather data?

A

WSR-88D Next Generation Radar

44
Q

What WSR-88D subsystem generates and radiates radio frequency pulses, then requires and processes reflected RF signals to obtain weather radar base data?

A

Radar data acquisition group

45
Q

What WSR-88D subsystem processes base data using stored algorithms to develop a set of derived meteorological products?

A

Radar product generator (RPG) group

46
Q

What WSR-88D subsystem is used for system testing, troubleshooting, and local product selection, generation, and distribution control?

A

Master system control function (MSCF) workstation

47
Q

What WSR-88D subsystem ingests and displays radar products from the radar product generate a group according to agency specific needs?

A

Principle user systems

48
Q

The frequency range of the AN/TMS-2 Portable Doppler Radar in megahertz is…?

A

9,320 to 9,370

49
Q

Which is not a limitation of the AN/TMS-2 Portable Doppler Radar ?

A

Limited network capability

50
Q

Range attenuation is due to the radar beam…?

A

Spreading as it gets farther from the antenna

51
Q

What AN/TMS-2 Portable Doppler Radar unit acts as a voltage regulator and uninterruptible power supply?

A

Power conditioning unit

52
Q

The two lower drives of the AN/TMS-2 Portable Doppler Radar processor drives are used to…?

A

Store the actual data collected when the radar performs a scan

CDC (10 decks)

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