1
PLUMBING LEVEL 3 EXAM ACTUAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A
•
128 fluid ounces - (answer)In liquid-volume measure using the english system,
1 gallon is equal to 4 quarts or_
metric system - (answer)The International System of units is another name for
the_
Area - (answer)Floor space is measured in_
Isosceles Triangle - (answer)A three-sided figure with two sides of equal length
is called a(n)_
Improper DWV Venting - (answer)A typical cause of siphonage and back
pressure is _
Globe valves - (answer)The same basic internal parts are used on angle valves,
compression faucets, and _
capped - (answer)At the end of each workday, all installed pipes should be _
Prevent the water in the disinfecting chamber from cooling the lamp -
(answer)The purpose of the quartz sleeve in an ultraviolet-light system is to _
hard water - (answer)Water that contains a high percentage of minerals is
called _
, 2
cubic centimeter - (answer)Water Hardness is measured in grains per _
Pressure-type vacuum breaker - (answer)The water line supplying a swimming
pool requires the installation of a(n) _
are not normally fitted with shutoff valves or test cocks - (answer)Dual-check
valve backflow preventer assemblies are difficult for plumbers to remove, test,
or replace because they _
car washes - (answer)Plumbing codes require the installation of reduced-
pressure zone principle backflow preventer assemblies in _
are equipped with strainers - (answer)To prevent clogging by foreign matter in
the water, many backflow preventers _
Static Head Loss - (answer)The difference in elevation between the supply line
and the system's highest fixture is called _
backflow - (answer)A cross-connection becomes dangerous when there is a _
the odor of the smoke - (answer)If a leak is too small for escaping smoke to be
visible, the leak may be detected by _
vent stack - (answer)The central vent in a building is the _
hardness - (answer)Calcium and magnesium salts in water are the cause of _
PLUMBING LEVEL 3 EXAM ACTUAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A
•
128 fluid ounces - (answer)In liquid-volume measure using the english system,
1 gallon is equal to 4 quarts or_
metric system - (answer)The International System of units is another name for
the_
Area - (answer)Floor space is measured in_
Isosceles Triangle - (answer)A three-sided figure with two sides of equal length
is called a(n)_
Improper DWV Venting - (answer)A typical cause of siphonage and back
pressure is _
Globe valves - (answer)The same basic internal parts are used on angle valves,
compression faucets, and _
capped - (answer)At the end of each workday, all installed pipes should be _
Prevent the water in the disinfecting chamber from cooling the lamp -
(answer)The purpose of the quartz sleeve in an ultraviolet-light system is to _
hard water - (answer)Water that contains a high percentage of minerals is
called _
, 2
cubic centimeter - (answer)Water Hardness is measured in grains per _
Pressure-type vacuum breaker - (answer)The water line supplying a swimming
pool requires the installation of a(n) _
are not normally fitted with shutoff valves or test cocks - (answer)Dual-check
valve backflow preventer assemblies are difficult for plumbers to remove, test,
or replace because they _
car washes - (answer)Plumbing codes require the installation of reduced-
pressure zone principle backflow preventer assemblies in _
are equipped with strainers - (answer)To prevent clogging by foreign matter in
the water, many backflow preventers _
Static Head Loss - (answer)The difference in elevation between the supply line
and the system's highest fixture is called _
backflow - (answer)A cross-connection becomes dangerous when there is a _
the odor of the smoke - (answer)If a leak is too small for escaping smoke to be
visible, the leak may be detected by _
vent stack - (answer)The central vent in a building is the _
hardness - (answer)Calcium and magnesium salts in water are the cause of _
