Pump 11

Question 1

(MANUAL TRANSMISSION) once the potheads been properly activated and the pump is engaged, …. The vehicles sped odometer should show ($$$$)

Answer 1

0 mph

Question 2

If it appears that the pump will be required to furnish more than 50% of its rated capacity it should be set to the ($$$$$$$$) position from the start.

Answer 2

Parallel volume

Question 3

To avoid possible damage to the water system do not allow incoming pressure to drop below ($$$$$),

Answer 3

20 psi

Question 4

The worst hydrants are typically ($$$$$)

Answer 4

Dead end mains

Question 5

NFPA 291

Answer 5

Recommended practice for fire flow testing and marking of hydrants

Question 6

Class AA, light blue,

Answer 6

1500 or greater

Question 7

Class A, green

Answer 7

1000 to 1499

Question 8

Class B orange

Answer 8

500 to 999

Question 9

Class c red

Answer 9

Less than 500

Question 10

There are two primary ways a fire department may use a hydrant. The first involves stopping at the hydrant, dropping the end of one or more supply lines at the hydrant, and proceeding to the fire location. This process is called a ($$$$$$)

Answer 10

Forward lay

Question 11

When using 2 1/2 or 3 inch hotlines to supply the pumper directly off hydrant pressure, it is recommended that the lines be no longer than ($$$$3

Answer 11

300 feet

Question 12

With the ($$$$$) hose is laid from the fire to the water source.

Answer 12

Reverse lay

Question 13

If threaded couplings are used, hose beds set up for revers lays should be loaded so that the first coupling to come off is ($$$$)

Answer 13

Male

Question 14

It is generally recommended that the hydrant valve be opened until the valve stem will pin no further and then close ($$$$$$$$$) to relieve the strain on the valves and the internal components.

Answer 14

One quarter turn

Question 15

When a pumper is connected to a hydrant and not discharging water, the pressure shown. On the intake gauge is the ($$$$$$)

Answer 15

Static pressure

Question 16

When the pumper is discharging water the intake gauge reading is the ($$$$$$)

Answer 16

Residual pressure

Question 17

Percentage method

Answer 17

((Static- residual)(100))/static

Question 18

When the percentage method is used. If the percentage is 10% or less, three additional lines with the same flow may be added: 11 to 15 % two lines; 16 to 25%, one line. If the percentage is over ($$$$$) more water may be available but not as much as is flowing through the line.

Answer 18

25%

Question 19

The ($$$$) for calculating available water is somewhat easier than the percentage method..

Answer 19

First digit method

Question 20

The maximum amount of vacuum that most pumps develop is approximately ($$$$) of mercury.

Answer 20

22 inches

Question 21

($$$$$) can be described as that condition where, theory water is being discharged from the pump faster than it is being supplied.

Answer 21

Cavitation

Question 22

Cavitation often results when a pump has been equipped with ($$$$) FRO the water tank

Answer 22

Inadequate piping

Question 23

In order for a pumper to approach its rated capacity using a traditional strainer, there should be a minimum of ($$$$$) of water over the strainer.

Answer 23

2 feet

Question 24

Low level strainers are designed to sit directly at the bottom of the tank or pool. They are capable of allowing the water to be drafted down to a depth of about ($$$$$)

Answer 24

2 inches

Question 25

All fire pumps meeting NFPA and UL requirements are rated to pump their capacity at ($$$$) of lift.

Answer 25

10 feet of lift

Question 26

A pumper in good condition can lift water approximately ($$$$)

Answer 26

23 or 24

Question 27

For effective operation, the maximum lift considered reasonable for most fi department pumpers is about ($$$$$). At 20 ft of lift the amount of water that can be supplied is only about ($$$) of the rated capacity.

Answer 27

20 feet

60%

Question 28

If operating a two stage pump, the transfer valve should be in the ($$$$$$) position during priming.

Answer 28

Parallel volume

Question 29

Most priming pumps are intended to work best when the engine I’d set between ($$$$$)

Answer 29

1000 and 1200 rpm

Question 30

The entire priming action typically requires ($$$$) from start to finish, but when using more than 20 feet of hard intake suction hose it should take no more than ($$$$$)

Answer 30

10 to 15 seconds

30 seconds 45 seconds in pumps larger than 1250 gallons