3d157 Vol 3
CDC URE questions from Cable and Antenna Systems Journeyman: Testing, Fiber and Network
- 1.
The cable fault that occurs because of moisture, a mechanical contact, or charred or burned conductor insulation is
- A.
A ground.
- B.
A short.
- C.
An open.
- D.
A cross.
Correct Answer
A. A ground. -
- 2.
A reverse occurs when the tip of a pair is spliced to the
- A.
Ring of the same pair.
- B.
Tip of the same pair.
- C.
Tip of a different pair.
- D.
Ring of a different pair.
Correct Answer
A. Ring of the same pair. -
- 3.
Which splicer’s error is indicated when the tip and ring of one pair is spliced to the tip and ring of another pair?
- A.
Transposition.
- B.
Cross.
- C.
Split.
- D.
Reverse.
Correct Answer
A. Transposition. -
- 4.
To verify a talk circuit connection using the 52E headset in the MDF, you hear a
- A.
“click” and speak into transmitter.
- B.
“buzz” and listen for dial tone.
- C.
Battery “click”.
- D.
Battery “buzz”.
Correct Answer
A. “click” and speak into transmitter. -
- 5.
Using the one-person continuity test, what cable preparation do you make before testing for opens?
- A.
Strap one end of the circuit to ground.
- B.
Open one end of the circuit.
- C.
Open both ends of the circuit.
- D.
Strap both ends of the circuit to ground.
Correct Answer
A. Strap one end of the circuit to ground. -
- 6.
When making a continuity test with a multimeter using the two-person method, the splicing crew must first establish
- A.
A talking circuit.
- B.
What circuits are faulty.
- C.
A reference pair.
- D.
The pair count.
Correct Answer
A. A talking circuit. -
- 7.
What tone level on the PR25A conductor tagger and analyzer do you use for normal tagging of the conductors in a working cable?
- A.
MED.
- B.
LOW.
- C.
HIGH.
- D.
AUTO.
Correct Answer
A. MED. -
- 8.
When tone is placed on a cable pair to be tagged with the PR25A conductor tagger and analyzer, what type of probe do you use with the amplifier to identify the pair under test?
- A.
513A.
- B.
105D.
- C.
101B.
- D.
93A.
Correct Answer
A. 513A. -
- 9.
If the conductor under test with a digital multimeter is grounded, the meter displays
- A.
A continuity reading.
- B.
An over range sign.
- C.
A voltage reading.
- D.
A “0” or nothing.
Correct Answer
A. A continuity reading. -
- 10.
What is the proper setup for a digital multimeter when measuring stray voltage on cable pairs?
- A.
BLACK lead to COM jack, RED lead to VOLT jack and function selector to AC VOLTS.
- B.
BLACK lead to COM jack, RED lead to VOLT jack and function selector to DC VOLTS.
- C.
BLACK lead to VOLT jack, RED lead to COM jack and function selector to AC VOLTS.
- D.
BLACK lead to VOLT jack, RED lead to COM jack and function selector to DC VOLTS.
Correct Answer
A. BLACK lead to COM jack, RED lead to VOLT jack and function selector to AC VOLTS. -
- 11.
Positioning the INPUT switch on the 147D amplifier depends upon the
- A.
Impedance of the exploring coil.
- B.
Input and output of the transformer.
- C.
Amount of voltage gain required.
- D.
Type of fault being located.
Correct Answer
A. Impedance of the exploring coil. -
- 12.
When operating the 147B amplifier, when is the voltage applied to the plate and filament?
- A.
When the receiver plug is inserted in the REC jack.
- B.
When the voltage gain switch is positioned.
- C.
When the coil is plugged into the 147D.
- D.
By the on and off switch.
Correct Answer
A. When the receiver plug is inserted in the REC jack. -
- 13.
When using the exploring coil method with the 147B amplifier to trace a tone to a fault, what situation may occur if the gain is set too high?
- A.
It may be difficult to determine a change in tone volume as coil is passed over fault.
- B.
The voltage applied to the plate and filament will automatically shut off.
- C.
The audio signal on the cable will be too low to detect.
- D.
Radio interference will not be bypassed.
Correct Answer
A. It may be difficult to determine a change in tone volume as coil is passed over fault. -
- 14.
When locating cable faults with the exploring coil and amplifier, how do you connect the tone generator with the pair to be tested?
- A.
In series.
- B.
In parallel.
- C.
Where the cable goes underground.
- D.
By using the simple induction method.
Correct Answer
A. In series. -
- 15.
When using a tone source and coil to locate a shorted pair, what causes tone variations along the cable?
- A.
Natural twist in the pairs.
- B.
Type of cable sheath over the pairs.
- C.
Resistance of the fault.
- D.
Distance to the fault.
Correct Answer
A. Natural twist in the pairs. -
- 16.
Normally, how many hours can you use the 965 DSP between charges?
- A.
12.
- B.
16.
- C.
10.
- D.
18.
Correct Answer
A. 12. -
- 17.
The 965 DSP comes with five test leads; which ones are used for most functions?
- A.
Red, black, and green.
- B.
Blue, red, and yellow.
- C.
Black, blue, and yellow.
- D.
Blue, yellow, and green.
Correct Answer
A. Red, black, and green. -
- 18.
When detecting resistance faults with the 965 DSP, what must be done to conductors at the far end?
- A.
Cleared from electrical contact.
- B.
Shorted together.
- C.
Shorted to shield.
- D.
Shorted directly to ground.
Correct Answer
A. Cleared from electrical contact. -
- 19.
When using the 965 DSP, multiple grounded conductors also show up as
- A.
Crosses.
- B.
Rounds.
- C.
Shorts.
- D.
Splits.
Correct Answer
A. Crosses. -
- 20.
When detecting cable faults with the 965 DSP in a non-working cable, which test leads are required?
- A.
Red and Black.
- B.
Blue and Yellow.
- C.
Green, Red, and Black.
- D.
Green, Blue, and Yellow.
Correct Answer
A. Red and Black. -
- 21.
What does the 965 DSP provide that may be used for final fault location?
- A.
Time-domain reflectometer (TDR).
- B.
Identification tone.
- C.
Talk set.
- D.
Integrated system digital network (ISDN).
Correct Answer
A. Time-domain reflectometer (TDR). -
- 22.
When locating a short with the 965 DSP, to what same lead do you connect the single end of the shorting strap at the far end?
- A.
Red.
- B.
Black.
- C.
Green.
- D.
Yellow.
Correct Answer
A. Red. -
- 23.
When testing for opens with the 965 DSP, you must short at least by what percentage of the inactive pairs to the cable shield?
- A.
30.
- B.
20.
- C.
40.
- D.
50.
Correct Answer
A. 30. -
- 24.
What 965 DSP function do you use to measure the capacitance of a known good pair within a cable of known length?
- A.
Calibrate to cable.
- B.
Multi-section.
- C.
Pair OK.
- D.
Resistance.
Correct Answer
A. Calibrate to cable. -
- 25.
Which method of applying tone do you use on a buried cable when there are no means of getting to the cable?
- A.
Simple induction.
- B.
Direct connection.
- C.
Inductive coupling.
- D.
High frequency connection.
Correct Answer
A. Simple induction. -
- 26.
Which method of applying tone do you use on a buried cable where bonds cannot be removed, interrupting service is not allowed, and more than one cable is in the trench?
- A.
Inductive coupling.
- B.
Direct connection.
- C.
Low-frequency connection.
- D.
Simple induction.
Correct Answer
A. Inductive coupling. -
- 27.
Which locating technique can you use on buried fiber optic cables when the cable does not contain any metal components?
- A.
Transponder peg.
- B.
Simple induction.
- C.
Direct connection.
- D.
Inductive coupling.
Correct Answer
A. Transponder peg. -
- 28.
What is the Model 2273 Cable Locator’s one passive trace frequency?
- A.
60 Hz.
- B.
200 Hz.
- C.
33 Hz.
- D.
8 Hz.
Correct Answer
A. 60 Hz. -
- 29.
Why do you turn the 2273 Cable Locator transmitter off before handling the connecting cables (or test leads)?
- A.
Avoid electrical shock.
- B.
Clear the last readings.
- C.
Conserve battery power.
- D.
Keep tone from interfering.
Correct Answer
A. Avoid electrical shock. -
- 30.
While using the direct connection with the 2273 Cable Locator transmitter, you use 577 Hz (low frequency) if the cable section is over a mile long because
- A.
It provides for greater tone.
- B.
Other tones are not available.
- C.
It is best for sweeping a large area.
- D.
Both ends of the cable section are not bonded.
Correct Answer
A. It provides for greater tone. -
- 31.
If you place the Cable Locator’s Dyna-Coupler on the cable between the ground bonding and the point where the cable enters the earth, where does the tone go?
- A.
Onto the cable.
- B.
Nowhere.
- C.
To ground.
- D.
Back to the test set.
Correct Answer
A. Onto the cable. -
- 32.
You can use the Cable Locator’s induction method when
- A.
Locating all conductive buried services in a general area.
- B.
There are only two other buried cables present.
- C.
Only one end of the cable is available.
- D.
The cable’s diameter is over one inch.
Correct Answer
A. Locating all conductive buried services in a general area. -
- 33.
When marking cables, mark the cable path
- A.
At the same time it is being located.
- B.
After buried power is located.
- C.
Two hours before digging.
- D.
Before it is located.
Correct Answer
A. At the same time it is being located. -
- 34.
When marking for cable, what color do we use for proposed digging or unknown utilities?
- A.
White.
- B.
Purple.
- C.
Red.
- D.
Orange.
Correct Answer
A. White. -
- 35.
When determining cable depth, place the 2273 Cable Locator receiver on the ground with the handle
- A.
Parallel to the cable’s path.
- B.
Facing the transmitter.
- C.
Perpendicular to the cable’s path.
- D.
At a 45° angle to the cable’s path.
Correct Answer
A. Parallel to the cable’s path. -
- 36.
How many hours does it take to fully charge the battery pack in the 1502 Time Domain Reflectometer?
- A.
16.
- B.
12.
- C.
10.
- D.
8.
Correct Answer
A. 16. -
- 37.
Which front panel control of the 1502 TDR selects the horizontal deflection factor?
- A.
FEET/DIV.
- B.
MP/DIV.
- C.
MULTIPLIER.
- D.
ZERO REF SET.
Correct Answer
A. FEET/DIV. -
- 38.
When an electrical path between two or more points is capable of producing one or more channels it is called a
- A.
Circuit.
- B.
Carrier.
- C.
Gain.
- D.
Bridge tap.
Correct Answer
A. Circuit. -
- 39.
The volume of a signal is described as the
- A.
Level.
- B.
Hum.
- C.
Decibel.
- D.
Modulation.
Correct Answer
A. Level. -
- 40.
A measurement of a cable pair’s uniformity throughout its length is called
- A.
Structural return loss.
- B.
Frequency translation error.
- C.
Impedance.
- D.
An echo.
Correct Answer
A. Structural return loss. -
- 41.
What is done first when testing a transmission line for opens with a multimeter?
- A.
Short the conductors.
- B.
Clear the conductors.
- C.
Connect lead to sheath.
- D.
Connect lead to inner conductor.
Correct Answer
A. Short the conductors. -
- 42.
What does the ground resistance tester model 4620 measure?
- A.
Voltage drop across a predetermined distance of earth.
- B.
Distance between the equipment and ground.
- C.
Compaction of the earth’s surface soil.
- D.
Current between two electrodes.
Correct Answer
A. Voltage drop across a predetermined distance of earth. -
- 43.
When performing a 3-point ground resistance test, the green test lead is connected to the terminal Y on the Model 4620 tester and the
- A.
Ground under test.
- B.
Equipment ground.
- C.
Auxiliary current electrode.
- D.
Auxiliary potential electrode.
Correct Answer
A. Ground under test. -
- 44.
The maximum ohms impedance to earth for a telephone equipment ground is
- A.
10.
- B.
15.
- C.
5.
- D.
20.
Correct Answer
A. 10. -
- 45.
Which factor would increase the insulation resistance of a conductor?
- A.
Thickness of the insulating material is increased.
- B.
Thickness of the insulating material is decreased.
- C.
Length of the conductor wire is increased.
- D.
Area of the conductor wire is increased.
Correct Answer
A. Thickness of the insulating material is increased. -
- 46.
The proper voltage output of the AN/PSM–2 is indicated by
- A.
The steady glow of the neon lamps through the plastic buttons.
- B.
Turning the crank in either direction.
- C.
Observing voltage reading in the megger’s meter.
- D.
Observing voltage reading on the bottom scale of the megohm scale.
Correct Answer
A. The steady glow of the neon lamps through the plastic buttons. -
- 47.
What is the needle set range of the AN/PSM–2 test set?
- A.
0 to 1000 megohms.
- B.
0 to 1000 ohms.
- C.
0 to 1000 volts.
- D.
0 to 500 volts.
Correct Answer
A. 0 to 1000 megohms. -
- 48.
Which conductor has the least total insulation resistance?
- A.
100 feet of paper insulated conductor.
- B.
100 feet of plastic insulated conductor.
- C.
50 feet of plastic insulated conductor.
- D.
50 feet of paper insulated conductor.
Correct Answer
A. 100 feet of paper insulated conductor. -
- 49.
How do you prepare the conductors being tested for insulation resistance at the distant end?
- A.
Cleared.
- B.
Strapped.
- C.
Strapped to ground.
- D.
Strapped to the megger.
Correct Answer
A. Cleared. -
- 50.
In fiber optics a “mode” can best be described as
- A.
The path light travels down a fiber.
- B.
The cores length of a fiber.
- C.
The axial ray of the fiber.
- D.
A mathematical theory.
Correct Answer
A. The path light travels down a fiber. -
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Apr 16, 2014Quiz Edited by
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