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Home BICSI RCDD-001

BICSI RCDD-001 Exam Practice Questions (P. 1)

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Question #1
Which characteristic is an advantage of copper based media over optical fiber cable?
  1. A
    Weight
  2. B
    Corrosion resistance
  3. C
    Ability to handle analog signals
  4. D
    Susceptibility to EMI
  5. E
    Very high data rates

Correct Answer:
C

Question #2
Which is an advantage of stranded conductors over solid conductors?
  1. A
    Less costly
  2. B
    Simpler terminations
  3. C
    Better high frequency performance
  4. D
    More flexible

Correct Answer:
D

Question #3
Composite conductors, although not generally recommended, may be used in special circumstances because they provide all of the following advantages
EXCEPT:
  1. A
    Have good digital transmission characteristics
  2. B
    Lightweight
  3. C
    Inexpensive
  4. D
    Easy to produce
  5. E
    Easily embedded into other materials

Correct Answer:
A

Question #4
Which electrical characteristic is displayed with the correct preferred value?
  1. A
    Dielectric constant – high value
  2. B
    Dielectric strength – high value
  3. C
    Dissipation factor – low value
  4. D
    Insulation resistance - high value

Correct Answer:
A

Question #5
If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:
  1. A
    3 dB
  2. B
    20 dB
  3. C
    30 dB
  4. D
    40 dB
  5. E
    1000 dB

Correct Answer:
C

Question #6
Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of:
  1. A
    Zero
  2. B
    0.707A and a frequency of f
  3. C
    A and a frequency of 2f
  4. D
    2A and a frequency of f
  5. E
    2A and a frequency of 2f

Correct Answer:
A

Question #7
Which of the following correctly lists the lowest frequency band to the highest frequency band?
  1. A
    MF, HF, VHF, UHF
  2. B
    UHF, VHF, HF, MF
  3. C
    HF, MF, UHF, VHF
  4. D
    VHF, UHF, MF, HF
  5. E
    HF, MF, UHF, VHF

Correct Answer:
A

Question #8
The conversion of an analog speech signal to a pulse code modulation (PCM) digital signal involves all of the following steps EXCEPT:
  1. A
    Low pass filtering
  2. B
    Periodic sampling
  3. C
    Quantizing
  4. D
    Companding
  5. E
    Amplitude modulation

Correct Answer:
E

Question #9
The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to-noise ratio (SNR) (dB) at the receiver input?
  1. A
    10 dB
  2. B
    30 dB
  3. C
    40 dB
  4. D
    60 dB
  5. E
    100 dB

Correct Answer:
B

Question #10
You must place CAT6 cable above a factory floor with automated welding machines and hammer forges. Of the following, what type of shielding would be most effective?
  1. A
    Multi-layer braid
  2. B
    Foil and braid
  3. C
    Solid metallic conduit
  4. D
    Flex metallic conduit
  5. E
    Sch. 40 PVC conduit

Correct Answer:
C

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