Driver Operator Study State Questions
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 ...
Driver Operator Study State Questions
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?
An air leak
or
Air in the pump Ans- What is the most common reason for loss of prime?
1,500 gallons Ans- What is the maximum tank capacity, in gallons, for a single rear axle fire unit?
Incoming pressure Ans- A centrifugal pump takes advantage of what type of pressure?
L x W x H= V (volume) Ans- What is the Formula for finding the volume of a square or rectangle?
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