Question 1

True or False: A grounded wire is connected to metal appliance cases

Options :

A : True

B : False

Answer: A

Question 2

Do you need to consider bullet (ballistics) protection when designing a data center?

Options :

A : Bullet (ballistics) protection is required by ANSI/TIA-942 for all data centers.

B :

Bullet (ballistics) protection is only required when the data center is located in an area with a high crime rate.

C : Bullet (ballistics) protection is required by ANSI/TIA-942 for data centers Rated 3

D :

Bullet (ballistics) protection is only required if the facility is a potential target or the building is in the vicinity of a potential target.

Answer: D

Question 3

The pipes of a VESDA smoke detection system are installed at the air intake of the air conditioner inside the computer room. Is this a good practice from an early smoke detection point of view?

Options :

A : It depends on the type of gas-based fire suppression which will be installed.

B : Yes, as this reduces the amount of piping to be installed in the data center, as all air will go through the air conditioner.

C : No, the piping should be installed at the air exhaust of the air conditioner, as there can also be a fire inside the air conditioner itself.

D : No, it will give a longer reaction time for the smoke detection system and there might also be bypass airflow.

Answer: D

Question 4

What indicates the breaking capacity of a fuse or breaker?

Options :

A : Mechanical strength of the casing of a fuse or breaker.

B :

The maximum voltage, in case of an electrical surge, that the fuse or breaker can handle without being destroyed or causing an electric damaging arc.

C : The current at which the device will trip.

D :

The current that a fuse or breaker is able to interrupt without being destroyed or causing an electric damaging arc.

Answer: D

Question 5

If a waveform period is determined to be 10 microseconds in duration, what is the frequency of the signal?

Options :

A : 100 kHz

B : 10 kHz

C : 1000 Hz

D : 100 Hz

Answer: A

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