F01 Sprinkler System Control Valves 2

Question 1

What is the function of the main sprinkler system shut-off valve (OS&Y valve) in a building?

Accepted Answer

It is the primary valve that controls water supply to the entire sprinkler system or a major portion of it

Answer

The Outside Screw and Yoke (OS&Y) valve is the main control valve for the sprinkler system. Closing it cuts water supply to the entire system (or a defined section), which is why it requires an impairment notification and fire watch when closed.

Question 2

What does a tamper switch on a sprinkler control valve do?

Accepted Answer

Sends a supervisory alarm signal to the fire alarm panel if the valve is moved from its fully open position

Answer

A tamper switch monitors the position of a control valve and sends a supervisory alarm signal to the fire alarm panel if the valve is moved from its fully open position, alerting building management of an impairment.

Question 3

What visual indicator on an OS&Y gate valve confirms that the valve is in the fully open position?

Accepted Answer

The threaded screw stem is fully extended outward from the yoke

Answer

On an OS&Y valve, the threaded stem extends outward (up or out from the yoke) when the valve is fully open. When closed, the stem is retracted. This visual confirmation is how inspectors and fireguards verify valve position.

Question 4

During a fire watch, an F-01 fireguard discovers a sprinkler control valve that appears partially closed but has no out-of-service tag. What action is required?

Accepted Answer

Do not touch the valve — immediately notify the impairment coordinator and building management

Answer

An untagged partially closed valve is an unauthorized impairment. The fireguard must not touch the valve but must immediately notify the impairment coordinator and building management to investigate and take appropriate action.

Question 5

Why are sprinkler control valves typically required to be secured in the open position (chained, locked, or supervised)?

Accepted Answer

To prevent accidental or unauthorized closure, which would impair the sprinkler system without detection

Answer

Sprinkler control valves must be secured in the open position to prevent accidental bumping, unauthorized closure, or tampering from disabling the sprinkler system without the knowledge of building management or FDNY.

(F01) NYC Fireguard F01 Certification Practice Test

(F01) NYC Fireguard F01 Certification Practice Test

F01 Sprinkler System Control Valves 2