PLUMBING LEVEL 3 EXAM 2024-2025 ACTUAL EXAM 60 QUESTIONS A
CORRECT DETAILED ANSWERS |ALREADY GRADED A
Study online at https://quizlet.com/_fzpp70
1. In liquid-volume measure using the english sys- 128 fluid ounces
tem, 1 gallon is equal to 4 quarts or_
2. The International System of units is another name metric system
for the_
3. Floor space is measured in_ Area
4. A three-sided figure with two sides of equal length Isosceles Triangle
is called a(n)_
5. A typical cause of siphonage and back pressure is Improper DWV Vent-
_ ing
6. The same basic internal parts are used on angle Globe valves
valves, compression faucets, and _
7. At the end of each workday, all installed pipes capped
should be _
8. The purpose of the quartz sleeve in an ultravio- Prevent the water in
let-light system is to _ the disinfecting cham-
ber from cooling the
lamp
9. Water that contains a high percentage of minerals hard water
is called _
10. Water Hardness is measured in grains per _ cubic centimeter
11. The water line supplying a swimming pool requires Pressure-type vacu-
the installation of a(n) _ um breaker
12. Dual-check valve backflow preventer assemblies are not normally fitted
are difficult for plumbers to remove, test, or replace with shutoff valves or
because they _ test cocks
13. Plumbing codes require the installation of re- car washes
duced-pressure zone principle backflow preventer
assemblies in _
1/5
, PLUMBING LEVEL 3 EXAM 2024-2025 ACTUAL EXAM 60 QUESTIONS A
CORRECT DETAILED ANSWERS |ALREADY GRADED A
Study online at https://quizlet.com/_fzpp70
14. To prevent clogging by foreign matter in the water, are equipped with
many backflow preventers _ strainers
15. The difference in elevation between the supply line Static Head Loss
and the system's highest fixture is called _
16. A cross-connection becomes dangerous when backflow
there is a _
17. If a leak is too small for escaping smoke to be the odor of the smoke
visible, the leak may be detected by _
18. The central vent in a building is the _ vent stack
19. Calcium and magnesium salts in water are the hardness
cause of _
20. Acid in the water can react with copper pipes to green
leave stains that are _
21. The number of types of simple machines is _ six
22. For calculating area, lengths and widths are ex- multiples of 12
pressed in _
23. To determine the proper measurements for a floor, scale on the construc-
always refer to the _ tion drawings
24. One cubic foot of water has a weight of _ 62.31 pounds
25. Increasing the temperature of water will _ decrease its density
but increase its vol-
ume
26. An efficient water supply system should provide, farthest point of use
under peak demand conditions, adequate pressure
to the _
27.
2/5
CORRECT DETAILED ANSWERS |ALREADY GRADED A
Study online at https://quizlet.com/_fzpp70
1. In liquid-volume measure using the english sys- 128 fluid ounces
tem, 1 gallon is equal to 4 quarts or_
2. The International System of units is another name metric system
for the_
3. Floor space is measured in_ Area
4. A three-sided figure with two sides of equal length Isosceles Triangle
is called a(n)_
5. A typical cause of siphonage and back pressure is Improper DWV Vent-
_ ing
6. The same basic internal parts are used on angle Globe valves
valves, compression faucets, and _
7. At the end of each workday, all installed pipes capped
should be _
8. The purpose of the quartz sleeve in an ultravio- Prevent the water in
let-light system is to _ the disinfecting cham-
ber from cooling the
lamp
9. Water that contains a high percentage of minerals hard water
is called _
10. Water Hardness is measured in grains per _ cubic centimeter
11. The water line supplying a swimming pool requires Pressure-type vacu-
the installation of a(n) _ um breaker
12. Dual-check valve backflow preventer assemblies are not normally fitted
are difficult for plumbers to remove, test, or replace with shutoff valves or
because they _ test cocks
13. Plumbing codes require the installation of re- car washes
duced-pressure zone principle backflow preventer
assemblies in _
1/5
, PLUMBING LEVEL 3 EXAM 2024-2025 ACTUAL EXAM 60 QUESTIONS A
CORRECT DETAILED ANSWERS |ALREADY GRADED A
Study online at https://quizlet.com/_fzpp70
14. To prevent clogging by foreign matter in the water, are equipped with
many backflow preventers _ strainers
15. The difference in elevation between the supply line Static Head Loss
and the system's highest fixture is called _
16. A cross-connection becomes dangerous when backflow
there is a _
17. If a leak is too small for escaping smoke to be the odor of the smoke
visible, the leak may be detected by _
18. The central vent in a building is the _ vent stack
19. Calcium and magnesium salts in water are the hardness
cause of _
20. Acid in the water can react with copper pipes to green
leave stains that are _
21. The number of types of simple machines is _ six
22. For calculating area, lengths and widths are ex- multiples of 12
pressed in _
23. To determine the proper measurements for a floor, scale on the construc-
always refer to the _ tion drawings
24. One cubic foot of water has a weight of _ 62.31 pounds
25. Increasing the temperature of water will _ decrease its density
but increase its vol-
ume
26. An efficient water supply system should provide, farthest point of use
under peak demand conditions, adequate pressure
to the _
27.
2/5
