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RCDD-001 by BICSI - Page 1 | ExamCademy

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Cables are installed in a ceiling in a straight line. The ceiling run is 60 m (200 ft) in length. What is the MINIMUM number of J-hooks required to support the cables?

A 20
B 30
C 40
D 50
E 60

Exhibit:

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A pay telephone using coins needs to be installed in a public area. In the specifications, it is required that the telephone shall meet the ADA (American with
Disabilities Act) requirement for front reach using a wheelchair. What will be the maximum reachable height or the value of "X"?

A 760 mm (30 in)
B 864 mm (34 in)
C 1170 mm (46 in)
D 1220 mm (48 in)
E 1370 mm (54 in)

Which characteristic is an advantage of copper based media over optical fiber cable?

A Weight
B Corrosion resistance
C Ability to handle analog signals
D Susceptibility to EMI
E Very high data rates

Which is an advantage of stranded conductors over solid conductors?

A Less costly
B Simpler terminations
C Better high frequency performance
D More flexible

Which electrical characteristic is displayed with the correct preferred value?

A Dielectric constant – high value
B Dielectric strength – high value
C Dissipation factor – low value
D Insulation resistance - high value

What is the recommended MINIMUM separation of unshielded twisted-pair (UTP) cables from fluorescent light fixtures?

A 77 mm (3 in)
B 30 mm (5.12 in)
C 203 mm (8 in)
D 324 mm (12.75 in)
E 483 mm (19 in)

If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:

A 3 dB
B 20 dB
C 30 dB
D 40 dB
E 1000 dB

A furniture cluster with 26 requires a MINIMUM of how many multiuser telecommunications outlet assembly (MUTOA)?

A 1
B 2
C 3
D 4
E 5

You are placing two 423 mm (19 in) relay racks with a 152 mm (6 in) vertical management panel on each end and a 12 in vertical cable management panel between the racks. The rack lineup begins against a wall in the room. What is the MINIMUM room size required?

A 1.83 m (6 ft) x 2.4 m (8 ft)
B 2.1 m (7 ft) x 2.4 m (8 ft)
C 2.4 m (8 ft) x 2.4 m (8 ft)
D 2.4 m (8 ft) x 3.0 m (10 ft)
E 3.0 m (10 ft) x 3.0 m (10 ft)

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?

A 10 dB
B 30 dB
C 40 dB
D 60 dB
E 100 dB

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:

A Zero
B 0.707A and a frequency of f
C A and a frequency of 2f
D 2A and a frequency of f
E 2A and a frequency of 2f