Fire Safety Sprinkler Systems and Suppression Equipment 2

Question 1

What is the role of the fire department connection (FDC) on a building's sprinkler system?

Accepted Answer

It allows firefighters to pump additional water into the sprinkler system

Answer

The FDC (siamese connection) allows the fire department to supplement the building's water supply by pumping directly into the sprinkler system.

Question 2

What does a supervisory alarm on a sprinkler system control panel typically indicate?

Accepted Answer

A component of the sprinkler system is in an abnormal condition, such as a closed valve

Answer

A supervisory alarm signals that a system component is out of its normal position or condition — most commonly a control valve that has been closed.

Question 3

How far below a sprinkler head must storage and materials be kept to ensure proper water distribution?

Accepted Answer

18 inches

Answer

A minimum clearance of 18 inches must be maintained below all sprinkler heads to allow water to distribute properly and not be blocked by obstructions.

Question 4

What is a pre-action sprinkler system designed to prevent?

Accepted Answer

Accidental water discharge caused by mechanical damage to sprinkler heads

Answer

Pre-action systems require both a fire detection signal and a sprinkler head activation before water flows, preventing accidental water damage from inadvertent sprinkler discharge.

Question 5

Which device on a sprinkler system provides a visible and/or audible alert when water begins flowing through the system?

Accepted Answer

Water flow alarm (water motor gong)

Answer

A water flow alarm, such as a water motor gong or electronic flow switch, activates when water moves through the system, alerting occupants and the fire department.

Fire Safety Practice Test

Fire Safety Practice Test

Fire Safety Sprinkler Systems and Suppression Equipment 2