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Plumber Practice Test 2
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Plumber Practice Test 2
Valves, piping, and fittings for oxygen service, according to plumbing code,
Should be cleaned in a warm solution of sodium carbonate
Do not need to be cleaned prior to installation
Should be cleaned thoroughly with a solution of gasoline or kerosene
Gas room heaters installed in hallways in homes for the elderly:
Must be the vented type
Should not have a projecting flue box
May be unvented
Water pipe sizing procedure is based upon:
Loss or gain in static pressure
The loss of pressure or friction through a water meter
A system of pressure losses or requirements
Which of the following materials is used to make a threaded joint between galvanized steel piping and copper tubing?
Dresser coupling
Galvanized extension piece
Brass male adapter
This is the term for the shutoff valve found between a faucet and water pipe. The outlet creates a 90° angle with the faucet, and the inlet hooks up to the water supply pipe in the wall.
Angle stop
Anode rod
Stop valve
This is the term for a decorative metal trim shield or flange located underneath a faucet handle. It covers the hole in the wall or fixture as well as the faucet stem.
Dove tail
Escutcheon
Fluer
You are instructed to cut a triangular opening into a wall. Once cut, he triangular opening forms one 30-60 right triangle. The longest side of the triangle measures 10' 0". The shortest side will measure approximately ____ ft.
4
5
8
135 cubic ft of water weighs _______ lbs. Choose the closest answer.
7,580
7,980.4
8,437.5
If there is a pressure of 30 psi at street level, how high will the pressure lift water contained in a 2 in. vertical water pipe? Choose the closest answer.
69.12'
73.10'
68.2'
Calculate the pressure in water at a 150m depth.
P= 1675 Kpa
P= 1470 Kpa
P= 1575 Kpa
A pressure gauge on a non-pressurized holding tank reads 24.3 Kpa. Find out how many meters of water are in the tank.
Depth= 2.48 m
Depth= 3.48 m
Depth= 1.48 m
The specific gravity of a certain type of oil is 0.8. What is the mass of 1 litre of the oil?
0.8 Kg
0.16 Kg
0.9 Kg
If 600 ft of piping weighs 900 lbs, 140 ft of like piping will weigh _____ lbs. Choose the closest answer.
211
217
180
A 60 gallon water heater weighs 52.5 lbs when it is empty and ________ lbs when it is full. Choose the closest answer.
585
553
501
The inner dimensions of a grease interceptor measure 9' 0" long, 4' 6" wide, 5' 0" deep, with a 20% free board. What, then, is the liquid capacity of the interceptor in gallons? Choose the closest answer.
1,150.25
1,430.40
1,211.76