Pumping

Question 1

What is pressure control regulated by?

Answer 1

Pressure transducer mounted in the fire pump body

Question 2

What does the pressure transducer send a signal to, to increase or decrease the engine rpm?

Answer 2

ECM

Electronic control module

Question 3

What should you set the fire pump at to give you 1,000 to 1,100 RPM?

Answer 3

PDP 150psi

Question 4

What is the ideal rpm while pumping in pressure control mode?

Answer 4

1,000 to 1,100 rpm

Question 5

What is the base engine idle rpm?

Answer 5

700 to 750 rpm

Question 6

What rule should be used when opening and closing valves and nozzles?

Answer 6

The 3 second rule per NFPA and manufacturers recommendations

Question 7

What will the psi fluctuate when operating from a fire hydrant?

Answer 7

Between 5 and 15 psi

Question 8

What is the minimum differential? (Hydrant psi vs. Pump psi)

Answer 8

30 psi

Question 9

What do you do if you loose RPM control?

Answer 9

Push the idle and then the mode button to regain throttle control

Question 10

What are the three interlocks for pumping operations?

Answer 10

Pump engaged
Okay to pump
And throttle ready