Driver Operator Study State Examination
1. How much does 1 gallon of water weigh?
Ans: 8.35 pounds
2. How many cubic inches does 1 gallon of water contain?
Ans: 231 cubic inches
3. How many pounds does 1 cubic foot of water weigh?
Ans: 62.5 pounds
4. How many gallons of water does 1 cubic foot contain?
Ans: 7.481 gallons
5. How many cubic inches are there in 1 cubic foot?
Ans:1,728 cubic inches
6. A 1 foot high column of water exerts how much psi at
it's base?
Ans:.434 psi
7. How many feet will 1 psi of pressure raise a column of
water?
Ans:2.304 feet
8. 1 inch of mercury is equal to how many inches of
water?
Ans:13.55 inches
9. What is the symbol for inches of mercury?
,Ans: HG
10. How many feet is dependable lift?
Ans:14.7 feet
11. How many feet is theoretical lift?
Ans:33.87 feet
12. How can most apparatus or equipment failures be
prevented?
Ans: By performing routine maintenance checks on
a regular basis.
13. Is exercising the volume-series control lever part of
the daily apparatus inspection?
Ans: No
14. Apparatus with water tanks of 1000 gallons or less
must have a tank fill line of at least how many inches?
Ans:1 inch
15. Apparatus with water tanks more than 1000 gallons
must have a tank fill line of how many inches?
Ans:2 inches
16. What NFPA is the standard for automotive fire
apparatus?
Ans: NFPA 1901
17.Industrial foam pumpers are built according to what
NFPA numbers?
, Ans: NFPA 11C
NFPA 1901
18. At what height do elevating water devices typically
range?
Ans:50-75 feet
19. During relay pumping, which pumper should be the
largest capacity pumper?
Ans: The source pumper
20. Relay pumping evolutions should be shut down at
what pumper first?
Ans: The scene pumper
21. Pumper capacities are set at draft with how many feet
of lift? And through how many feet of hard suction?
Ans:10 feet of lift
20 feet of hard suction
22. Pumpers should flow how many psi at 100% capacity?
Ans:150 psi
23. Pumpers should flow how many psi at 70% capacity?
Ans:200 psi
24. Pumpers should flow how many psi at 50% capacity?
Ans:250 psi
25. Head pressure equals?
1. How much does 1 gallon of water weigh?
Ans: 8.35 pounds
2. How many cubic inches does 1 gallon of water contain?
Ans: 231 cubic inches
3. How many pounds does 1 cubic foot of water weigh?
Ans: 62.5 pounds
4. How many gallons of water does 1 cubic foot contain?
Ans: 7.481 gallons
5. How many cubic inches are there in 1 cubic foot?
Ans:1,728 cubic inches
6. A 1 foot high column of water exerts how much psi at
it's base?
Ans:.434 psi
7. How many feet will 1 psi of pressure raise a column of
water?
Ans:2.304 feet
8. 1 inch of mercury is equal to how many inches of
water?
Ans:13.55 inches
9. What is the symbol for inches of mercury?
,Ans: HG
10. How many feet is dependable lift?
Ans:14.7 feet
11. How many feet is theoretical lift?
Ans:33.87 feet
12. How can most apparatus or equipment failures be
prevented?
Ans: By performing routine maintenance checks on
a regular basis.
13. Is exercising the volume-series control lever part of
the daily apparatus inspection?
Ans: No
14. Apparatus with water tanks of 1000 gallons or less
must have a tank fill line of at least how many inches?
Ans:1 inch
15. Apparatus with water tanks more than 1000 gallons
must have a tank fill line of how many inches?
Ans:2 inches
16. What NFPA is the standard for automotive fire
apparatus?
Ans: NFPA 1901
17.Industrial foam pumpers are built according to what
NFPA numbers?
, Ans: NFPA 11C
NFPA 1901
18. At what height do elevating water devices typically
range?
Ans:50-75 feet
19. During relay pumping, which pumper should be the
largest capacity pumper?
Ans: The source pumper
20. Relay pumping evolutions should be shut down at
what pumper first?
Ans: The scene pumper
21. Pumper capacities are set at draft with how many feet
of lift? And through how many feet of hard suction?
Ans:10 feet of lift
20 feet of hard suction
22. Pumpers should flow how many psi at 100% capacity?
Ans:150 psi
23. Pumpers should flow how many psi at 70% capacity?
Ans:200 psi
24. Pumpers should flow how many psi at 50% capacity?
Ans:250 psi
25. Head pressure equals?
