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Driver operator mobile water TEST FINAL EXAM AND
PRACTICE EXAM 20262027 BANK 2 VERSIONS QUESTIONS
WITH DETAILED VERIFIED ANSWERS EXAM QUESTIONS
WILL COME FROM HERE (100% CORRECT ANSWERS A+
GRADED
What does the C stand for in this equation? FL=CQ - ANSWERS--Fricition
loss coefficient
Why should you pull short or past the hydrant if you have front or rear
suction? - ANSWERS--To allow the hose to bend
How far away from the pumper can you safely apply a hose clamp? -
ANSWERS--20 ft
Where to position apparatus near rail road tracks? - ANSWERS--On the
same side of the incidents
How far from a downed power line should you stand away? -
ANSWERS--The distance between two power lines
Never use a hose clamp on - ANSWERS--LDH
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What to use high expansion foam with - ANSWERS--High pressure
compressed air
Firefighter at the hydrant on forward lay should have hose, hydrant
wrench and - ANSWERS--Gate valve
What to use on vertical surfaces - ANSWERS--Class A dry foam
What is a grid system? - ANSWERS--A water supply system that utilizes
lateral feeders for improved distribution
What is the distance between the liquid surface of the foam
concentrate and the foam concentrate inlet to the foam educator? -
ANSWERS--Maximum of 6 ft
What is net discharge pressure? - ANSWERS--Actual amount of pressure
being produced by the pump; difference between the intake pressure
and the discharge pressure
Atmospheric pressure decreases .5 psi per ____ ft - ANSWERS--1000 ft
Parallel= - ANSWERS--Volume mode
Series= - ANSWERS--Pressure mode
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What is Theoretical lift? - ANSWERS--Scientific height that a column of
water maybe lifter by atmospheric pressure in a true vacuum
At sea level what is the max theoretical lift? - ANSWERS--33.9 ft
As elevation increases the height will? - ANSWERS--Decrease
What is maximum lift? - ANSWERS--Any amount of water may be raised
through a hard suction hose to a pump; determined by the ability of the
pump to create a vacuum
What decibel should firefighters wear gearing protection? - ANSWERS--
90 decibels
Safest operating pressure for smooth bore nozzle? - ANSWERS--50 psi
Safest operating pressure for a master stream? - ANSWERS--80 psi
Safest operating pressure of a fog nozzle? - ANSWERS--100 psi
If possible the firefighter should operate this test outside - ANSWERS--
Functional test
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What test must be performed before accepting the apparatus? -
ANSWERS--Acceptance test
A variable flow rate sensing proportioned is required to supply the fire
stream at a rate of - ANSWERS--.1 to 1.0 percent
How to select a fill site for drafting operations - ANSWERS--Preplanning
What is the difference between a CAFS system and a high energy foam
system? - ANSWERS--They introduce compressed air into the foam
solution prior to discharge
What is a tactical advantage of using a CAFS system? - ANSWERS--Foam
produced by a CAFS system adheres to a fuel surface and resists heat
longer than low energy
The three types of streams are solid, fog and ___? - ANSWERS--Broken
What is the least safe option when filling a tender? - ANSWERS--Fill
from the top with an open hose butt
What do you want the highest pump at on the fire scene? - ANSWERS--
The water source
Driver operator mobile water TEST FINAL EXAM AND
PRACTICE EXAM 20262027 BANK 2 VERSIONS QUESTIONS
WITH DETAILED VERIFIED ANSWERS EXAM QUESTIONS
WILL COME FROM HERE (100% CORRECT ANSWERS A+
GRADED
What does the C stand for in this equation? FL=CQ - ANSWERS--Fricition
loss coefficient
Why should you pull short or past the hydrant if you have front or rear
suction? - ANSWERS--To allow the hose to bend
How far away from the pumper can you safely apply a hose clamp? -
ANSWERS--20 ft
Where to position apparatus near rail road tracks? - ANSWERS--On the
same side of the incidents
How far from a downed power line should you stand away? -
ANSWERS--The distance between two power lines
Never use a hose clamp on - ANSWERS--LDH
,2|Page
What to use high expansion foam with - ANSWERS--High pressure
compressed air
Firefighter at the hydrant on forward lay should have hose, hydrant
wrench and - ANSWERS--Gate valve
What to use on vertical surfaces - ANSWERS--Class A dry foam
What is a grid system? - ANSWERS--A water supply system that utilizes
lateral feeders for improved distribution
What is the distance between the liquid surface of the foam
concentrate and the foam concentrate inlet to the foam educator? -
ANSWERS--Maximum of 6 ft
What is net discharge pressure? - ANSWERS--Actual amount of pressure
being produced by the pump; difference between the intake pressure
and the discharge pressure
Atmospheric pressure decreases .5 psi per ____ ft - ANSWERS--1000 ft
Parallel= - ANSWERS--Volume mode
Series= - ANSWERS--Pressure mode
,3|Page
What is Theoretical lift? - ANSWERS--Scientific height that a column of
water maybe lifter by atmospheric pressure in a true vacuum
At sea level what is the max theoretical lift? - ANSWERS--33.9 ft
As elevation increases the height will? - ANSWERS--Decrease
What is maximum lift? - ANSWERS--Any amount of water may be raised
through a hard suction hose to a pump; determined by the ability of the
pump to create a vacuum
What decibel should firefighters wear gearing protection? - ANSWERS--
90 decibels
Safest operating pressure for smooth bore nozzle? - ANSWERS--50 psi
Safest operating pressure for a master stream? - ANSWERS--80 psi
Safest operating pressure of a fog nozzle? - ANSWERS--100 psi
If possible the firefighter should operate this test outside - ANSWERS--
Functional test
, 4|Page
What test must be performed before accepting the apparatus? -
ANSWERS--Acceptance test
A variable flow rate sensing proportioned is required to supply the fire
stream at a rate of - ANSWERS--.1 to 1.0 percent
How to select a fill site for drafting operations - ANSWERS--Preplanning
What is the difference between a CAFS system and a high energy foam
system? - ANSWERS--They introduce compressed air into the foam
solution prior to discharge
What is a tactical advantage of using a CAFS system? - ANSWERS--Foam
produced by a CAFS system adheres to a fuel surface and resists heat
longer than low energy
The three types of streams are solid, fog and ___? - ANSWERS--Broken
What is the least safe option when filling a tender? - ANSWERS--Fill
from the top with an open hose butt
What do you want the highest pump at on the fire scene? - ANSWERS--
The water source
