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Plumbing Level 3 Exam Questions and Answers $7.99   Add to cart

Exam (elaborations)

Plumbing Level 3 Exam Questions and Answers

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  • Course
  • Plumbing
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  • Plumbing

Plumbing Level 3 Exam Questions and Answers

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  • September 25, 2023
  • 2
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • Plumbing
  • Plumbing
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millyphilip
Plumbing Level 3 Exam Questions and Answers
Increasing the temperature of water will - Answer- decrease its density but increase its volume
At a temperature of 100F, 1 cubic foot of water weighs - Answer- 61.99 pounds
Transient flow describes a situation in which water flow is - Answer- erratic and unstable
Water that flows smoothly in a straight line is exhibiting - Answer- laminar flow
Quiet operation of a water supply systems in in part ensured by - Answer- a reasonable flow rate
An efficient water supply system should provide, under peak demand conditions, adequate pressure to the - Answer- farthest point of use
Fixtures or outlets considered intermittent-demand items are typically in use for a period
of no more than - Answer- five minutes
Water flow rates calculated for the total supply system are expressed in gallons per - Answer- minute
Decreased pressure in a water supply system resulting from the water passing through fittings, meters, and other devices is referred to as - Answer- pressure drop
The difference in elevation between the supply line and the system's highest fixture is called - Answer- static head loss
Backflow of wastewater into the potable-water supply can cause - Answer- contamination
A cross-connection becomes dangerous when there is a - Answer- backflow
The simplest form of backflow preventer is the - Answer- air gap
When there is a low-hazard risk of back siphonage in hoses attached to a photograph-
developing sink or a dairy barn, some codes require the installation of a - Answer- hose-
connection vacuum breaker
The water line supplying a swimming pool requires the installation of a(n) - Answer- pressure-type vacuum breaker

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