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DRIVER OPERATOR STUDY STATE QUESTIONS

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DRIVER OPERATOR STUDY STATE QUESTIONS

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  • September 19, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Driver operator
  • Driver operator
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GEEKA
DRIVER OPERATOR STUDY STATE QUESTIONS

8.35 pounds - Answers -How much does 1 gallon of water weigh?

231 cubic inches - Answers -How many cubic inches does 1 gallon of water contain?

62.5 pounds - Answers -How many pounds does 1 cubic foot of water weigh?

7.481 gallons - Answers -How many gallons of water does 1 cubic foot contain?

1,728 cubic inches - Answers -How many cubic inches are there in 1 cubic foot?

.434 psi - Answers -A 1 foot high column of water exerts how much psi at it's base?

2.304 feet - Answers -How many feet will 1 psi of pressure raise a column of water?

13.55 inches - Answers -1 inch of mercury is equal to how many inches of water?

HG - Answers -What is the symbol for inches of mercury?

14.7 feet - Answers -How many feet is dependable lift?

33.87 feet - Answers -How many feet is theoretical lift?

By performing routine maintenance checks on a regular basis. - Answers -How can
most apparatus or equipment failures be prevented?

No - Answers -Is exercising the volume-series control lever part of the daily apparatus
inspection?

1 inch - Answers -Apparatus with water tanks of 1000 gallons or less must have a tank
fill line of at least how many inches?

2 inches - Answers -Apparatus with water tanks more than 1000 gallons must have a
tank fill line of how many inches?

NFPA 1901 - Answers -What NFPA is the standard for automotive fire apparatus?

NFPA 11C
NFPA 1901 - Answers -Industrial foam pumpers are built according to what NFPA
numbers?

50-75 feet - Answers -At what height do elevating water devices typically range?

, The source pumper - Answers -During relay pumping, which pumper should be the
largest capacity pumper?

The scene pumper - Answers -Relay pumping evolutions should be shut down at what
pumper first?

10 feet of lift
20 feet of hard suction - Answers -Pumper capacities are set at draft with how many
feet of lift? And through how many feet of hard suction?

150 psi - Answers -Pumpers should flow how many psi at 100% capacity?

200 psi - Answers -Pumpers should flow how many psi at 70% capacity?

250 psi - Answers -Pumpers should flow how many psi at 50% capacity?

Incoming pressure - Answers -A centrifugal pump takes advantage of what type of
pressure?

L x W x H= V (volume) - Answers -What is the Formula for finding the volume of a
square or rectangle?

Diameter squared x .7854 x H= V (volume) - Answers -What is the Formula for finding
the volume of a cylinder?

1.5 x D squared x NP= NR (nozzle reaction) - Answers -What is the Formula for finding
nozzle reaction?

1.8 x D squared x EP= INR (initial nozzle reaction) - Answers -What is the Formula for
finding initial nozzle reaction?

1/2 GPM= NR (nozzle reaction) - Answers -What is the Rule of Thumb formula for
finding nozzle reaction?

L x W / 100= sprinkler heads needed - Answers -What is the Formula for determining
the number of sprinkler heads needed?

1/2 P + 15= Q (gpm)
Multiply the answer x the number of heads x the minutes flowing to get the total flow. -
Answers -What is the Formula for finding the gpm (Q) of 1 sprinkler head?

(Q-15) x 2= P (discharge pressure) - Answers -What is the Formula for finding the
discharge pressure at each sprinkler head?

29.7 x D squared x square root of the nozzle pressure= gpm - Answers -What is the
Formula for finding the GPM for a restricted opening such as a smooth bore nozzle?

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