TX Journeyman Plumber Quiz Test
Hot & cold water piping may be tested with _____. - Answer- 50 psi or the working pressure of the water in the system for at least 15 mins
A stack as defined in the code is _____. - Answer- the vertical main of a soil, waste or vent piping which extends one...
TX Journeyman Plumber Quiz Test
Hot & cold water piping may be tested with _____. - Answer- 50 psi or the working pressure of
the water in the system for at least 15 mins
A stack as defined in the code is _____. - Answer- the vertical main of a soil, waste or vent
piping which extends one or more stories
A device to prevent backflow into potable water system is called a _____. - Answer- backflow
connection/backflow preventer
Copper tube and fittings used for drainage and vent piping installed above ground shall be at
least _____. - Answer- copper DWV tube
Horizontal drainage lines connecting with horizontal drainage lines shall enter through _____. -
Answer- 45 degree wye branches
The vertical distance between a fixture outlet and the trap weir shall not exceed _____. -
Answer- 24 inches
The critical level of a urinal flushometer vacuum breaker to the highest part of the fixture is
_____. - Answer- 6 inches
Water closet tank ballcocks shall be installed with the vacuum breaker critical level at least
_____. - Answer- 1 inch above the full opening of the overflow tube
The maximum distance of a gas shutoff valve from a gas appliance (except for range and dryer
connections) is _____. - Answer- 6 feet
The minimum size of any piping outlet for a free standing gas range shall be _____. - Answer-
3/4 of an inch
A plumbing permit expires if work authorized by the permit is not started within _____. - Answer-
180 days
A fixture trap is vented to _____. - Answer- prevent the loss of trap seal, reduce noise in the
drainage system & prevent siphonage or backpressure to a trap
Standpipe receptors for clothes washers shall extend above the trap no less than ______. -
Answer- 18 inches
Where nonferrous pipe is brazed for gas piping, the brazing materials shall have a melting point
in excess of _____ degrees Farenheit. - Answer- 140
The principal artery of the venting system to which branches may be connected is called ____. -
Answer- main vent
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