3D156 CDC Vol. 3
- 1.(401) What facility ground subsystem uses surge arrestors?
- A.
The earth electrode subsystem.
- B.
The fault protection subsystem.
- C.
The signal reference subsystem.
- D.
The lightning protection subsystem.
- 2.(401) What facility ground subsystem is also called the safety ground?
- A.
The earth electrode subsystem.
- B.
The fault protection subsystem.
- C.
The signal reference subsystem.
- D.
The lightning protection subsystem.
- 3.(402) What term is used for the establishment of a low-impedance path between two metal surfaces?
- A.
Bonding.
- B.
Shielding.
- C.
Annealing.
- D.
Grounding.
- 4.(402) Bonds in the earth electrode subsystem normally are direct permanent bonds and do not exceed a resistance of
- A.
1 milliohm.
- B.
2 milliohms.
- C.
5 milliohms.
- D.
10 milliohms.
- 5.(402) What bonds are normally applied to signal reference bonds?
- A.
None.
- B.
Brazing.
- C.
Welding.
- D.
Mechanical.
- 6.(403) What are two basic functions of shielding?
- A.
Prevent interference between multiple emanating systems and minimize compromising emanations.
- B.
Prevent interference between multiple emanating systems and block all emanations from exiting a secure facility.
- C.
To equalize all electronic systems to the same potential and minimize compromising emanations.
- D.
To equalize all electronic systems to the same potential and block all emanations from exiting a secure facility.
- 7.(404) The thin plastic colored tape spirals around a specific number of pairs that replicate in a cable is a
- A.
Marker.
- B.
Bundle.
- C.
Casing.
- D.
Binder.
- 8.(404) In telecommunications cable, the "tip" or "primary" color group order is
- A.
Blue, orange, green, brown, and slate.
- B.
Blue, green, yellow, red, and orange.
- C.
White, red, black, yellow, and violet.
- D.
White, blue, green, yellow, and violet.
- 9.(404) What is the "ring" or "secondary" color code for telecommunications cable?
- A.
Blue, orange, green, brown, and slate.
- B.
Blue, green, yellow, red, and orange.
- C.
White, red, black, yellow, and violet.
- D.
White, blue, green, yellow, and violet.
- 10.(404) In telecommunications cable, the binder color for pair count 26-50 is
- A.
Yellow-orange.
- B.
Violet-orange.
- C.
White-orange.
- D.
White-slate.
- 11.(404) Most newly installed network cables follow what standard?
- A.
N586B.
- B.
N568C.
- C.
T586C.
- D.
T568B.
- 12.(404) Two types of network cables are
- A.
Straight through and crossover.
- B.
Straight through and flip/flop.
- C.
High and low baud.
- D.
"n" and "g".
- 13.(405) How are Air Force communications quality control checksheet (AFCQCC) organized?
- A.
Alphabetically.
- B.
By unit type code.
- C.
By numbered and titled series designator groups.
- D.
By equipment short title and national stock class.
- 14.(405) Which is a function of Air Force Communications Special Instructions?
- A.
Permanently change technical order procedures.
- B.
Means to issue optional equipment modifications.
- C.
Provide significant system repair history for equipment transfers.
- D.
Paraphrases technical order procedures via quick reference index cards.
- 15.(406) How many parameters are associated with temperature/dewpoint measurement?
- A.
2.
- B.
3.
- C.
4.
- D.
5.
- 16.(406) What is the degree of accuracy and scale used to measure temperature/dewpoint readings?
- A.
Tenth, Celsius.
- B.
Tenth, Fahrenheit.
- C.
Hundredth, Celsius.
- D.
Hundredth, Fahrenheit.
- 17.(406) For stations utilizing Coordinated Universal Time, what are the standard time designations for observing maximum and minimum temperatures?
- A.
0000 and 1200.
- B.
0000, 0800, and 1600.
- C.
0000, 0600, 1200, and 1800.
- D.
0000, 0400, 0800, 1200, 1600, and 2000.
- 18.(407) Wind direction is determined by averaging the direction over how many minutes?
- A.
1.
- B.
2.
- C.
5.
- D.
10.
- 19.(407) How many degrees of direction change must occur to be classified as a wind shift?
- A.
10.
- B.
45.
- C.
90.
- D.
180.
- 20.(408) The four visibility parameters are
- A.
Prevailing, sector, surface, and tower.
- B.
Approach, clearance, surface, and tower.
- C.
Approach, prevailing, surface, and tower.
- D.
Approach, clearance, prevailing, and surface.
- 21.(408) What standard must automated visibility sensor use?
- A.
International Standard Algorithms for Automated Weather Observing Systems Used for Aviation Purposes.
- B.
Federal Standard Algorithms for Automated Weather Observing Systems Used for Aviation Purposes.
- C.
Federal Aviation Administration (FAA) Standard Weather Algorithms.
- D.
FAA Algorithms for Aviation Weather Observations.
- 22.(409) Altimeter setting refers to the altitude above mean sea level of an aircraft located where?
- A.
500' above the weather station.
- B.
1000' above the weather station.
- C.
Anywhere in the local flight pattern.
- D.
On the ground at the measurement location.
- 23.(410) Cloud height is one part of a more complex forecasting fundamental called
- A.
Sky condition.
- B.
Visibility.
- C.
Structure.
- D.
Horizon.
- 24.(410) What piece of meteorological equipment is used to measure cloud height?
- A.
Barometer.
- B.
Ceilometer.
- C.
Cloudometer.
- D.
Laser measure.
- 25.(411) What four major subassemblies make up the automated meteorological station, AN/FMQ-19?
- A.
Sensors, field data collection unit (FDCU), terminal data acquisition unit (TDAU), and data multiplexer.
- B.
FDCU, remote control display unit (RC/DU), TDAU, and data multiplexer.
- C.
Sensors, FDCU, TDAU, and operator interface display (OID).
- D.
FDCU, data multiplexer, TDAU, and OIDs.
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