main v2 Flashcards
The thin plastic colored tape that spirals around a specific number of pairs that replicate in a cable is called a…?
Binder
In telecommunications cables, the “tip” or “primary” color group order is…?
White, red, black, yellow, and violet
What colors make up the “ring” or “secondary” color code for telecommunications cables?
Blue, orange, green, brown, and slate
What standard do most newly installed network cables follow?
T568B
Two types of network cables are…?
Straight through and crossover
How do you determine which type of fiber optic lubricant to use during installation?
Refer to the manufacturers product data
When installing fiber optic cable on a horizontal run, the cable must be secured every…?
36 inches
What device is used to secure the pulling line to the strength members of the cable?
Pulling grip
How is unauthorized access to the configuration screens of a channel bank prevented?
Password protection
Why is it important for a channel bank to have a modular design?
It allows expansion with minimal cost
Any repair of electronic equipment should begin with…?
symptom recognition
Which troubleshooting method traces the system path, in order, step by step, until the problem is solved?
sequential
Which troubleshooting method divides the circuit in half with each step?
half-split
What test can determine if a cable is operating correctly?
continuity
What additional step is required when troubleshooting a multi-wire cable that is not required when troubleshooting a single-wire cable?
ensure no continuity between the wire under test and any additional wire
A reading of zero during a continuity test indicates…?
the signal travels down the entire length of the cable uninterrupted
What are the 3 main functions of grounding?
personnel safety, equipment protection, and noise reduction
Which facility ground subsystem uses surge arrestors?
lightning protection
What facility ground subsystem is also called the safety ground?
fault protection
Establishing a low impedance path between two metal surfaces is called…?
bonding
Bonds in the earth electrode system normally are direct permanent bonds and do not exceed a resistance of how many milliohms?
1
What kind of bond is normally applied to signal reference?
mechanical
The two basic functions of shielding are to…?
Prevent interference between multiple emanating systems and minimize compromising emanations
The designation RED is applied to equipment processing what type of information?
Clear-text classified
What is believed to draw lightning to air terminals?
Streamers
What assures that all metal masses are of the same electrical potential?
Bonding
At how many points should the external grounding system be bonded?
1
A stored electrical charge at rest is referred to as…?
Static electricity
Extremely sensitive electronic devices can be damaged by as little as how many bolts?
25
Always assume all on marked electronic assemblies, subassemblies, and components are likely…?
Sensitive to electrostatic discharge
Items sensitive to electrostatic discharge must only be handled…?
At certified ESD workstations using a wrist strap
What item is the most important when handling items sensitive to electrostatic discharge?
Wrist strap
The average kinetic energy of the molecules in the air is called…?
Temperature
What indicates the temperature to which a given parcel of air must be cooled, with constant water vapor content and pressure, to reach saturation?
Dew point
Which is not a distinctive parameter or observation standard for wind?
Peak wind shift
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?
Visibility
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?
Altimeter setting
Which factor is not used in calculating dew point?
Dry-bulb depression
How many feet above the ground are most automated weather station visibility sensors mounted?
10
What instrumentally derived value is calculated using different elements of visibility, ambient light level, and runway light intensity?
Runway visual range
Station pressure is determined by adjusting the corrected barometric pressure to compensate the difference between the height of the barometer and the…?
Designated station elevation
How many feet is the measurement range for most ceilometers?
30 to 25,000
What high power, dual polarization Doppler radar is used to detect, process, distribute, and display radar weather data?
WSR-88D Next Generation Radar
What WSR-88D subsystem generates and radiates radio frequency pulses, then requires and processes reflected RF signals to obtain weather radar base data?
Radar data acquisition group
What WSR-88D subsystem processes base data using stored algorithms to develop a set of derived meteorological products?
Radar product generator (RPG) group
What WSR-88D subsystem is used for system testing, troubleshooting, and local product selection, generation, and distribution control?
Master system control function (MSCF) workstation
What WSR-88D subsystem ingests and displays radar products from the radar product generate a group according to agency specific needs?
Principle user systems
The frequency range of the AN/TMS-2 Portable Doppler Radar in megahertz is…?
9,320 to 9,370
Which is not a limitation of the AN/TMS-2 Portable Doppler Radar ?
Limited network capability
Range attenuation is due to the radar beam…?
Spreading as it gets farther from the antenna
What AN/TMS-2 Portable Doppler Radar unit acts as a voltage regulator and uninterruptible power supply?
Power conditioning unit
The two lower drives of the AN/TMS-2 Portable Doppler Radar processor drives are used to…?
Store the actual data collected when the radar performs a scan
