reg4 fire pump Questions And Answers With Verified Updates
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Course
Reg4 fire pump
Institution
Reg4 Fire Pump
where the max flow available from a water supply cannot provide a flow of 150 percent of the rated flow
for the pump but can provide the greater of 100 percent of rated flow or max flow demand of fire system
the water supply shall be deemed? - adequate. in this case , the max flow shall be consid...
reg4 fire pump
where the max flow available from a water supply cannot provide a flow of 150 percent of the rated flow
for the pump but can provide the greater of 100 percent of rated flow or max flow demand of fire system
the water supply shall be deemed? - adequate. in this case , the max flow shall be considered the
highest flow achievable
elbows and tees with a centerline plane parallel to a horizontal split-case pump shaft shall not be
permitted in the suction piping unless - the distance between the pump suction flange and elbow
or tee flange is greater the 10 times the suction pipe diameter
the discharge gauge shall indicate pressure to at least ________ the rated working pressure of the pump
but not less than ________ psi - twice / 200
batteries attempt to start cycle test - 3min test , 6 consecutive cycles of 15sec of cranking and 15
sec of rest
pump and jockey Sensing line shall have no - shut off valve
pump and jockey Sensing line shall have 2 3/32nd check valves or unions at least how far apart? -
5feet
pump and jockey Sensing line have small orfice checks for what purpose? - dampening
a pressure gauge having a dial not less than ________ in. in diameter and with a nominal size of
_________ shall be connected near the discharge casting and the suction piping - 3.5 in dial and
.25 nominal or 1/4in
the suction gauge shall have a pressure range of ________ the rated max suction pressure of the pump -
2 times
, where the minimum pump suction pressure is below ______ psi under any flow condition, the suction
gauge shall be a ______ _______ ______ ________ - 20/ compound pressure vacuum gauge
if the pump is equipped with a bypass the piping shall be what size - at least as large as the pipe
size required for the discharge pipe as specified in table 4.27
no control valve other than a listed os&y gate valve shall be installed in the suction pipe within _____ft
of the _______ _______ - 50 / suction flange
maximum number of fire pumps in series - three
if the pump is equipped with a pressure relief valve no _______ valve is allowed - shutoff
how many test header hose valves for a 2000 gpm pump - six
where pumps are in series a butterfly valve shall ______ installed between pumps - not
each pump supplying suction pressure to another pump shall be arranged to start within? - 10 sec
before the pump it supplies
if water requirements call for more than one pump to operate at a time , the pumps shall start at
intervals of ? - 5 to 10 seconds
where the suction pipe and pump suction flange are not of the same size ,they shall be connected with a
?- eccentric tappered reducer or increaser installed in such a way as to avoid air pockets
at 150 percent of the rated capacity, the net pump pressure shall be at least ______ percent of the
________ pressure - 65 / rated
if previous results are available the net pressure should be within ______% of the previous result at
________ ________ - 5 / each point
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