Question 1

Smoke sensors must be installed in the computer room. What is the minimum density?

Options :

A : 1 per 5 m²

B : 1 per 10 m²

C : 1 per 25 m²

D : 1 per 40 m²

Answer: C

Question 2

Which one of the following is an advantage of Air Cooled Self-Contained System?

Options :

A : Lowest installation cost

B : It doesn't requires ductwork and/or dropped ceiling

C : It doesn't requires ductwork and/or dropped ceiling

D : All components contain more than one unit

Answer: B

Question 3

Which component is designed to protect electrical equipment from damage caused by overload or short circuit?

Options :

A : Transfer Switch

B : Stabiliser

C : Transient

D : Circuit Breaker

Answer: D

Question 4

A computer room with a raised floor has been designed with racks in a hot/cold aisle setup. What should you recommend for the placement of down-flow air conditioners?

Options :

A : Air conditioners perpendicular to (at the end of the row of) the Cold-Aisle

B : Air conditioners perpendicular to (at the end of the row of) the Hot-Aisle

C : Air conditioners should always be placed at both sides of each row of racks

D : Air conditioner placement has no influence on cooling effectiveness and efficiency. Hence, they can be placed at any convenient location.

Answer: A

Question 5

Which formula is correct?

Options :

A : Phase-to-Neutral Voltage = Phase-to-Phase voltage * 1.732

B : Phase-to-Neutral Voltage = Phase-to-Phase voltage .732

C : Phase-to-Neutral Voltage = Phase-to-Neutral voltage * 1.732

D : Phase-to-Neutral Voltage = (Phase-to-Phase voltage * 1.732) / Phase-to-Neutral Voltage

Answer: B

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