Chapter 9 Fire Department Pumper Testing

Question 1

What tests make up preservice test? 3

Answer 1

manufacturers test
pump certification test
acceptance test

Question 2

How often should service tests be conducted?

Answer 2

yearly or after extensive pump or power train repair

Question 3

In order to ensure that preservice test are performed the municipality should do what?

Answer 3

require in apparatus that specification

Question 4

most pumping fire apparatus are designed to meet requirements of ____

Answer 4

NFPA 1901

Question 5

what is the NFPA standard for wildfire fire apparatus

Answer 5

NFPA 1906

Question 6

what two test makeup the manufacturers test? 2

Answer 6

road test

hydrostatic test

Question 7

while performing the manufacturers test, NFPA 1901 requires the apparatus to accelerate from __ to ___ in ___

Answer 7

0-35

25s

Question 8

while performing manufacturers test, the apparatus must achieve a top speed of at least ___

Answer 8

50mph

Question 9

while performing the manufacturers test, the apparatus must come to a full stop from 20 miles an hour within __

Answer 9

35ft

Question 10

which are superior standards performance-based specifications or engineer base specifications

Answer 10

performance-based specifications

Question 11

what does the hydrostatic test determine

Answer 11

whether the pump and piping can withstand normal operating pressures

Question 12

NFPA 1901 requires that pump to be hydrostatic retested at ___psi for ___

Answer 12

250 PSI

three minutes

Question 13

during the hydrostatic test what lines/valves should be open/closed/capped

Answer 13

fill line (tank refill), tank to pump line, bypass line valves closed
 discharge valves should be open and capped
 Intake valves should be close or capped

Question 14

While the hydrostatic test determines if the pump and piping were constructed properly. the pump certification test determines what?

Answer 14

if the pump performs properly

Question 15

what tests are performed during the certification test (6)

Answer 15

1 pumping test
2 pumping engine overload test
3 pressure control system test
4 priming device test
5 vacuum test
6 water tank to pump flow test

Question 16

what are the conditions under which a pump certification test must be conducted 4

Answer 16

• must be carried out from a static supply source
• strainer and must be submerged at least 2 feet
• water may be no more than 10 feet from pump
• 20 feet of hard suction should be used

Question 17

describe the pumping test 750 gpm and above capacity

Answer 17

100% @ 150 for 2h
70% @ 200 for 30min
50% @250 for 30min
 volume, discharge pressure, intake pressure, RPM recorded every 15 minutes
 average = rated capacity

Question 18

described the pumping test for engines below 750 GPM capacity

Answer 18

100% @150 for 30min
75% @200 for 10min
50% @250 for 10 min
volume, discharge pressure, intake pressure, RPM recorded every 10 minutes

Question 19

NFPA 1901 requires pumping engine overload test on engines with a rated capacity of over ___

Answer 19

750gpm

Question 20

describe the pumping engine overload test

Answer 20

100% of it’s rated capacity @ 165 psi for 10 minutes

volume, discharge pressure, intake pressure, RPM should be recorded three times

Question 21

how should the engine be prepared for priming device test

Answer 21

all intakes must be capped or plugged

all discharge caps must be removed

Question 22

priming device test, seconds to achieve prime
less than 1250 GPM
greater than 1500 GPM

Answer 22

30s

45s

Question 23

how does the auxiliary intake larger than 4 inches affective priming test?

Answer 23

allowed an additional 15 seconds

Question 24

during the priming test the pump must obtain a maximum vacuum of at least

Answer 24

22 inches of mercury

Question 25

what is the purpose of the vacuum test

Answer 25

to ensure there are no air leaks within the piping, pump, and intake hoses

Question 26

what does NFPA 1901 state about the tank to pump piping?

Answer 26

< 500gpm capacity... flow 250gpm from tank | >500gpm capacity... flow 500gpm from tank

Question 27

what test are not required or outlined by NFPA 1901?

Answer 27

acceptance test

Question 28

the requirements for service testing are contained in what NFPA standard

Answer 28

1911

Question 29

what test are required by NFPA 1911 for service testing | 6

Answer 29

``` engine speed check vacuum test pumping test pressure control test gauge and flowmeter test tank to pump flow test ```

Question 30

after scribing a mark with a hose and company should that line move more than ___ the test should be stopped and hose replaced

Answer 30

3/8"

Question 31

what is the first test that should be performed during service testing

Answer 31

engine speed check

Question 32

what test is performed to check the prime device, pump, and hard intake hose for air leaks

Answer 32

vacuum test

Question 33

when performing the vacuum test, what is the threshold for vacuum loss?

Answer 33

no more than 10 inches of vacuum should be lost in five minutes

Question 34

what is the primary difference between the pumping service test and the pump certification test?

Answer 34

the duration of various steps

Question 35

what test assures the fire department and insurance rating companies that the apparatus will perform as expected?

Answer 35

pump certification test

Question 36

described the service pumping test

Answer 36

150psi for 20min...100% rated volume ...capacity test (while setting discharge/flow engine can't reach 80% peak) 200psi for 10min.... delivering 70% rated volume 250psi for 10min.... delivering 50% rated volume recored DP, IP, RPM, flow every 5min oil pressure/coolant temp/transmission temp optional

Question 37

service test - pressure control test | part one

Answer 37

100% volume @150 psi set pressure control device close all flowing valves over 3-10s psi should not rise > 30 psi

Question 38

what is the purpose of the tank to pump flow test

Answer 38

to ensure that the piping between the water tank in the pump is sufficient to supply the minimum amount of water specified by NFPA 1901

Question 39

what is the minimum depth of water for a static source used for pump testing? what is the maximum distance the surface of the water may be below the level of the pump?

Answer 39

4 feet | 10 feet

Question 40

what is the total time duration for preservice pump certification test

Answer 40

three hours

Question 41

was the total duration of pumping time for the service pumping test

Answer 41

50 minutes

Question 42

Service test- what is the maximum amount of any discharge pressure gauge may vary from the master pressure gauge

Answer 42

10 psi

Question 43

Service Test-Pressure control test part 2

Answer 43

flow 100% rated capacity at net DP of 150psi reduce throttle so DP= 90psi set pressure control device to 90psi close all lines one at a time 3-10s all lines closed DP should not increase more than 30psi

Question 44

Servic Test - Pressure control device part 3

Answer 44

flow 50% rated capacity at DP of 250psi set pressure control device to 250psi close all lines, one at time 3-10 all lines closed, DP should not increase more than 30psi