TEXAS MASTER PLUMBING ACTUAL EXAM WITH QUESTIONS
& 100% CORRECT ANSWERS PLUS A COMPREHENSIVE
STUDY GUIDE WITH QUESTIONS & CORRECT ANSWERS (1ST
ATTEMPT PASS GUARANTEED)
What degree is used for isometric drawings? - CORRECT ANSWER-60 degrees
What is the recommended minimum of minutes for chlorine water management? - CORRECT
ANSWER-20-30 minutes
When you need to repair a single handle lavatory faucet, what needs to be replaced? - CORRECT
ANSWER-O ring
The minimum vertical length for a gravity type water heater vent is - CORRECT ANSWER-5 feet
All of the following types of fire vents serving a gas fired water heater may pass through a wall or
ceiling except - CORRECT ANSWER-a single wall vent
Who can approve a backflow prevention device? - CORRECT ANSWER-The authority having
jurisdiction
Testing on a backflow prevention device shall be done by - CORRECT ANSWER-a certified backflow
assembly tester
A bathtub spout with an effective opening of 1 inch in diameter is not affected by the nearest
sidewall. What minimum distance is required for the tub filler spouts air gap. - CORRECT ANSWER-2
inches
For water pipe safety prevention, what is the minimum backflow prevention? - CORRECT ANSWER-
Pressure vacuum breaker
Direct connections between the potable water supply and sewer-connected wastes - CORRECT
ANSWER-shall not exist under any condition
,The minimum elevation at which a vacuum breaker may be installed above the flood level rim of the
device it services is called the - CORRECT ANSWER-critical level
What is the minimum backflowpreventer for a flushometer valve? - CORRECT ANSWER-Atmospheric
Vacuum Breaker (AVB)
PVB - CORRECT ANSWER-Pressure Vacuum Breaker
RPPB - CORRECT ANSWER-Reduced Pressure Principle Backflow
A flushometer valve shall have an approved vacuum breaker installed to work in conjunction with
the valve. The vacuum breaker is required to be located - CORRECT ANSWER-on the discharge side of
the flushometer
The critical level of the vacuum breaker on a flushometer valve shall be what minimum height above
a urinal? - CORRECT ANSWER-6 inches
Water closet tank ballcocks shall be installed with vacuum breaker critical level at least - CORRECT
ANSWER-1 inch above the full opening of the overflow tube
Ballcocks in water closet tanks shall be installed so that the critical level of the vacuum breaker or
the bottom of the water inlet is above the full opening of the overflow pipe, at least - CORRECT
ANSWER-1 inch
What type of vacuum breaker is used for swimming pools? - CORRECT ANSWER-Atmospheric
vacuum breaker
Water pipes that supply swimming pools require what minimum backflow protection? - CORRECT
ANSWER-Atmospheric vacuum breaker
Type copper water pipe shall not be installed belowgrade under a building. - CORRECT
ANSWER-M
Type M copper pipe may be installed in all locations except - CORRECT ANSWER-beneath the
building and underground
, Copper tubing identified by a yellow stripe is Type - CORRECT ANSWER-DWV Yellow
Copper tubing with yellowstripe - CORRECT ANSWER-DWV
Copper tubing with green stripe - CORRECT ANSWER-K
Copper tubing with Blue stripe - CORRECT ANSWER-L
Copper tubing with Red stripe - CORRECT ANSWER-M
Hard drawn copper tubing shall bear a 1/4 inch strip of indelible ink marking it as type, color coded -
CORRECT ANSWER-green
If a contractor takes great care in removing an old 2 inch copper pipe from a heating system and
caps the ends so no debris can enter, what must he do to use the material in another potable water
system? - CORRECT ANSWER-This is NOT ALLOWED by the code
What type of connector is used with PEX piping? - CORRECT ANSWER-Slide in and easy style
connector
Which of the following water piping is not allowed in residential service for hot and cold? - CORRECT
ANSWER-PVC
Valves up to and including inches shall be of brass or other approved materials. -
CORRECT ANSWER-2
Water supply to more than one building shall be equipped with valve to shut off separate
buildings. - CORRECT ANSWER-separate fully to each single family dwelling
A full flow non-restricting valve must be installed in the water distribution system on the
- CORRECT ANSWER-discharge side of the meter
& 100% CORRECT ANSWERS PLUS A COMPREHENSIVE
STUDY GUIDE WITH QUESTIONS & CORRECT ANSWERS (1ST
ATTEMPT PASS GUARANTEED)
What degree is used for isometric drawings? - CORRECT ANSWER-60 degrees
What is the recommended minimum of minutes for chlorine water management? - CORRECT
ANSWER-20-30 minutes
When you need to repair a single handle lavatory faucet, what needs to be replaced? - CORRECT
ANSWER-O ring
The minimum vertical length for a gravity type water heater vent is - CORRECT ANSWER-5 feet
All of the following types of fire vents serving a gas fired water heater may pass through a wall or
ceiling except - CORRECT ANSWER-a single wall vent
Who can approve a backflow prevention device? - CORRECT ANSWER-The authority having
jurisdiction
Testing on a backflow prevention device shall be done by - CORRECT ANSWER-a certified backflow
assembly tester
A bathtub spout with an effective opening of 1 inch in diameter is not affected by the nearest
sidewall. What minimum distance is required for the tub filler spouts air gap. - CORRECT ANSWER-2
inches
For water pipe safety prevention, what is the minimum backflow prevention? - CORRECT ANSWER-
Pressure vacuum breaker
Direct connections between the potable water supply and sewer-connected wastes - CORRECT
ANSWER-shall not exist under any condition
,The minimum elevation at which a vacuum breaker may be installed above the flood level rim of the
device it services is called the - CORRECT ANSWER-critical level
What is the minimum backflowpreventer for a flushometer valve? - CORRECT ANSWER-Atmospheric
Vacuum Breaker (AVB)
PVB - CORRECT ANSWER-Pressure Vacuum Breaker
RPPB - CORRECT ANSWER-Reduced Pressure Principle Backflow
A flushometer valve shall have an approved vacuum breaker installed to work in conjunction with
the valve. The vacuum breaker is required to be located - CORRECT ANSWER-on the discharge side of
the flushometer
The critical level of the vacuum breaker on a flushometer valve shall be what minimum height above
a urinal? - CORRECT ANSWER-6 inches
Water closet tank ballcocks shall be installed with vacuum breaker critical level at least - CORRECT
ANSWER-1 inch above the full opening of the overflow tube
Ballcocks in water closet tanks shall be installed so that the critical level of the vacuum breaker or
the bottom of the water inlet is above the full opening of the overflow pipe, at least - CORRECT
ANSWER-1 inch
What type of vacuum breaker is used for swimming pools? - CORRECT ANSWER-Atmospheric
vacuum breaker
Water pipes that supply swimming pools require what minimum backflow protection? - CORRECT
ANSWER-Atmospheric vacuum breaker
Type copper water pipe shall not be installed belowgrade under a building. - CORRECT
ANSWER-M
Type M copper pipe may be installed in all locations except - CORRECT ANSWER-beneath the
building and underground
, Copper tubing identified by a yellow stripe is Type - CORRECT ANSWER-DWV Yellow
Copper tubing with yellowstripe - CORRECT ANSWER-DWV
Copper tubing with green stripe - CORRECT ANSWER-K
Copper tubing with Blue stripe - CORRECT ANSWER-L
Copper tubing with Red stripe - CORRECT ANSWER-M
Hard drawn copper tubing shall bear a 1/4 inch strip of indelible ink marking it as type, color coded -
CORRECT ANSWER-green
If a contractor takes great care in removing an old 2 inch copper pipe from a heating system and
caps the ends so no debris can enter, what must he do to use the material in another potable water
system? - CORRECT ANSWER-This is NOT ALLOWED by the code
What type of connector is used with PEX piping? - CORRECT ANSWER-Slide in and easy style
connector
Which of the following water piping is not allowed in residential service for hot and cold? - CORRECT
ANSWER-PVC
Valves up to and including inches shall be of brass or other approved materials. -
CORRECT ANSWER-2
Water supply to more than one building shall be equipped with valve to shut off separate
buildings. - CORRECT ANSWER-separate fully to each single family dwelling
A full flow non-restricting valve must be installed in the water distribution system on the
- CORRECT ANSWER-discharge side of the meter
