Driver Operator Study State Complete Questions and Correct Detailed Answers (Verified Answers)

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Driver Operator Study State Complete
Questions and Correct Detailed Answers
(Verified Answers)
Question: How much does 1 gallon of water weigh?


Ans: 8.35 pounds



Question: How many cubic inches does 1 gallon of water contain?


Ans: 231 cubic inches



Question: How many pounds does 1 cubic foot of water weigh?


Ans: 62.5 pounds



Question: How many gallons of water does 1 cubic foot contain?


Ans: 7.481 gallons



Question: How many cubic inches are there in 1 cubic foot?


Ans: 1,728 cubic inches




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Question: A 1 foot high column of water exerts how much psi at it's

base?


Ans: .434 psi



Question: How many feet will 1 psi of pressure raise a column of

water?


Ans: 2.304 feet



Question: 1 inch of mercury is equal to how many inches of water?


Ans: 13.55 inches



Question: What is the symbol for inches of mercury?


Ans: HG



Question: How many feet is dependable lift?


Ans: 14.7 feet



Question: How many feet is theoretical lift?


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Ans: 33.87 feet



Question: How can most apparatus or equipment failures be

prevented?


Ans: By performing routine maintenance checks on a regular basis.



Question: Is exercising the volume-series control lever part of the

daily apparatus inspection?


Ans: No



Question: Apparatus with water tanks of 1000 gallons or less must

have a tank fill line of at least how many inches?


Ans: 1 inch



Question: Apparatus with water tanks more than 1000 gallons must

have a tank fill line of how many inches?


Ans: 2 inches



Question: What NFPA is the standard for automotive fire apparatus?

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Ans: NFPA 1901



Question: Industrial foam pumpers are built according to what NFPA

numbers?


Ans: NFPA 11C

NFPA 1901



Question: At what height do elevating water devices typically range?


Ans: 50-75 feet



Question: During relay pumping, which pumper should be the largest

capacity pumper?


Ans: The source pumper



Question: Relay pumping evolutions should be shut down at what

pumper first?


Ans: The scene pumper




Master01 | 2025/2026 | Latest update