Driver Operator Study State Questions
well answered graded A+
8.35 pounds - ANS ✔How much does 1 gallon of water weigh?
231 cubic inches - ANS ✔How many cubic inches does 1 gallon of water contain?
62.5 pounds - ANS ✔How many pounds does 1 cubic foot of water weigh?
7.481 gallons - ANS ✔How many gallons of water does 1 cubic foot contain?
1,728 cubic inches - ANS ✔How many cubic inches are there in 1 cubic foot?
.434 psi - ANS ✔A 1 foot high column of water exerts how much psi at it's base?
2.304 feet - ANS ✔How many feet will 1 psi of pressure raise a column of water?
13.55 inches - ANS ✔1 inch of mercury is equal to how many inches of water?
HG - ANS ✔What is the symbol for inches of mercury?
14.7 feet - ANS ✔How many feet is dependable lift?
33.87 feet - ANS ✔How many feet is theoretical lift?
,By performing routine maintenance checks on a regular basis. - ANS ✔How can most apparatus
or equipment failures be prevented?
No - ANS ✔Is exercising the volume-series control lever part of the daily apparatus inspection?
1 inch - ANS ✔Apparatus with water tanks of 1000 gallons or less must have a tank fill line of at
least how many inches?
2 inches - ANS ✔Apparatus with water tanks more than 1000 gallons must have a tank fill line of
how many inches?
NFPA 1901 - ANS ✔What NFPA is the standard for automotive fire apparatus?
NFPA 11C
NFPA 1901 - ANS ✔Industrial foam pumpers are built according to what NFPA numbers?
50-75 feet - ANS ✔At what height do elevating water devices typically range?
The source pumper - ANS ✔During relay pumping, which pumper should be the largest capacity
pumper?
The scene pumper - ANS ✔Relay pumping evolutions should be shut down at what pumper
first?
10 feet of lift
20 feet of hard suction - ANS ✔Pumper capacities are set at draft with how many feet of lift?
And through how many feet of hard suction?
, 150 psi - ANS ✔Pumpers should flow how many psi at 100% capacity?
200 psi - ANS ✔Pumpers should flow how many psi at 70% capacity?
250 psi - ANS ✔Pumpers should flow how many psi at 50% capacity?
Back pressure - ANS ✔Head pressure equals?
Acceptance test - ANS ✔What is the test performed at the factory or after delivery to assure the
purchaser that the apparatus meets BID specifications?
True - ANS ✔Pressure supplied to a hose should not exceed that at which it is annually tested.
True or False?
300 gpm - ANS ✔Master streams have flows of over how many gpm?
True - ANS ✔On a standpipe system, firefighters should disconnect house lines and use their
own hoses. True or False?
200 psi - ANS ✔The maximum allowable pressure for a relay is how many psi?
0 psi - ANS ✔What is the friction loss for appliances with flows of less than 350 psi?
10 psi - ANS ✔What is the friction loss for appliances with flows of more than 350 psi?
True - ANS ✔There is no "positive mechanical blockage" between the intake and discharge sides
of a centrifugal pump. True or False?
well answered graded A+
8.35 pounds - ANS ✔How much does 1 gallon of water weigh?
231 cubic inches - ANS ✔How many cubic inches does 1 gallon of water contain?
62.5 pounds - ANS ✔How many pounds does 1 cubic foot of water weigh?
7.481 gallons - ANS ✔How many gallons of water does 1 cubic foot contain?
1,728 cubic inches - ANS ✔How many cubic inches are there in 1 cubic foot?
.434 psi - ANS ✔A 1 foot high column of water exerts how much psi at it's base?
2.304 feet - ANS ✔How many feet will 1 psi of pressure raise a column of water?
13.55 inches - ANS ✔1 inch of mercury is equal to how many inches of water?
HG - ANS ✔What is the symbol for inches of mercury?
14.7 feet - ANS ✔How many feet is dependable lift?
33.87 feet - ANS ✔How many feet is theoretical lift?
,By performing routine maintenance checks on a regular basis. - ANS ✔How can most apparatus
or equipment failures be prevented?
No - ANS ✔Is exercising the volume-series control lever part of the daily apparatus inspection?
1 inch - ANS ✔Apparatus with water tanks of 1000 gallons or less must have a tank fill line of at
least how many inches?
2 inches - ANS ✔Apparatus with water tanks more than 1000 gallons must have a tank fill line of
how many inches?
NFPA 1901 - ANS ✔What NFPA is the standard for automotive fire apparatus?
NFPA 11C
NFPA 1901 - ANS ✔Industrial foam pumpers are built according to what NFPA numbers?
50-75 feet - ANS ✔At what height do elevating water devices typically range?
The source pumper - ANS ✔During relay pumping, which pumper should be the largest capacity
pumper?
The scene pumper - ANS ✔Relay pumping evolutions should be shut down at what pumper
first?
10 feet of lift
20 feet of hard suction - ANS ✔Pumper capacities are set at draft with how many feet of lift?
And through how many feet of hard suction?
, 150 psi - ANS ✔Pumpers should flow how many psi at 100% capacity?
200 psi - ANS ✔Pumpers should flow how many psi at 70% capacity?
250 psi - ANS ✔Pumpers should flow how many psi at 50% capacity?
Back pressure - ANS ✔Head pressure equals?
Acceptance test - ANS ✔What is the test performed at the factory or after delivery to assure the
purchaser that the apparatus meets BID specifications?
True - ANS ✔Pressure supplied to a hose should not exceed that at which it is annually tested.
True or False?
300 gpm - ANS ✔Master streams have flows of over how many gpm?
True - ANS ✔On a standpipe system, firefighters should disconnect house lines and use their
own hoses. True or False?
200 psi - ANS ✔The maximum allowable pressure for a relay is how many psi?
0 psi - ANS ✔What is the friction loss for appliances with flows of less than 350 psi?
10 psi - ANS ✔What is the friction loss for appliances with flows of more than 350 psi?
True - ANS ✔There is no "positive mechanical blockage" between the intake and discharge sides
of a centrifugal pump. True or False?
