EVT EVT Fire Pump Systems & Water Delivery

Question 1

What is the rated capacity of a fire pump used to classify it under NFPA 1901 standards?

Accepted Answer

Flow at rated pressure from draft

Answer

Maximum pressure at 0 GPM

Answer

Flow at 150 PSI net pump pressure

Answer

Suction lift capacity in feet

Question 2

During a fire pump annual service test, what percentage of rated capacity must the pump deliver at 150% of rated pressure?

Accepted Answer

70%

Answer

100%

Answer

50%

Answer

25%

Question 3

What component prevents backflow from the tank into the pump intake when the pump is operating from a hydrant?

Accepted Answer

Tank-to-pump valve check valve

Answer

Pressure relief valve

Answer

Primer pump

Answer

Discharge gate valve

Question 4

What is the minimum net pump pressure required for NFPA 1901 acceptance testing of a 1,000 GPM rated fire pump?

Accepted Answer

150 PSI

Answer

100 PSI

Answer

165 PSI

Answer

200 PSI

Question 5

What does a drop in fire pump discharge pressure combined with an increase in engine RPM indicate?

Accepted Answer

Cavitation or loss of prime

Answer

Relief valve opening

Answer

Correct pump operation

Answer

Discharge valve partially closed

Question 6

Which NFPA standard governs the in-service inspection, testing, and maintenance of fire department apparatus including pump tests?

Accepted Answer

NFPA 1911

Answer

NFPA 1901

Answer

NFPA 1710

Answer

NFPA 13