Texas Plumbing Inspectors Exam
Questions and Answers
A barometric loop is ____ above the highest piping - ANSWER-33.9 ft
A branch can be in any part of the plumbing system except - ANSWER-Riser
A device installed in a drainage system to prevent reverse flow is a - ANSWER-
Backwater valve
A final water heater inspection shall be made only after - ANSWER-All work authorized
by permit has been installed
A flame spread index of _________ or less and a smoke developed index of _________
or less are viewed as acceptable values for combustibles in a plenum - ANSWER-25-50
A lavatory drain that is connected into the vent of the water closet is referred to as -
ANSWER-Wet vent
A negative pressure that can cause backflow is known as - ANSWER-Backsiphonage
A pipe that supplies potable water to any building or part of the lot is known as a -
ANSWER-Building supply
A pipe which contains waste that is free from fecal matter is - ANSWER-Waste
A pipe which makes an angle of not more than 45 degrees with the vertical is
considered - ANSWER-Horizontal
A plugged fitting located at the base of all soil stacks is called - ANSWER-Stack
cleanout
A pressure surge absorbing device operating through the compressibility of air is called
- ANSWER-Hammer arrestor
A pressure vacuum breaker is listed for - ANSWER-Backsiphonage only
A reduced pressure principle assembly is listed for - ANSWER-Backsiphonage and
backpressure
A sanitary t may not be used for what type of installation? - ANSWER-Back to back
toilets
A single wall vent connector shall not originate in a - ANSWER-Unoccupied attic
, A storm drain system is normally ________ entering a sanitary sewer - ANSWER-
Prohibited
A strack is always - ANSWER-Vertical
A vacuum relief valve must be installed in _____ water heaters and tanks connected to
water heaters - ANSWER-Bottom fed
A vent stack shall be required for every drainage stack that has how many branch
intervals or more? - ANSWER-5
A vent that is dry must be vertical until it is at least how far above the flood level rim? -
ANSWER-6 in
A vent which also serves as a drain is a - ANSWER-Wet vent
A vertical line of piping that extends one or more floors and recieved the discharge of
water closets and other fixtures is known as - ANSWER-Soil stack
A vertical vent that is a continuation of the drain to which it connects is a - ANSWER-
Continuous vent
A water closet shall not be closer than how much from its center to any side or wall? -
ANSWER-15 in
A water heater located in a garage within the vehicle path must be - ANSWER-Suitably
guarded against damage
A water heater vented into a fireplace or into a chimney serving a fireplace is -
ANSWER-prohibited
A wet vent serves as - ANSWER-A vent for one fixture and a drain for another fixture
Air testing of water supply piping shall be held at what pressure for not less than 15
minutes? - ANSWER-50
All fire resistance rated through penetration assemblies must be qualified by testing in
accordance to ASTM - ANSWER-E814
All health care related fixtures devices and equipment shall discharge ot the drainage
system through an indirect waste pipe by means of what? - ANSWER-Air gap
All horizontal drains shall be provided with cleanouts located not more than how many
feet apart - ANSWER-100 ft
Questions and Answers
A barometric loop is ____ above the highest piping - ANSWER-33.9 ft
A branch can be in any part of the plumbing system except - ANSWER-Riser
A device installed in a drainage system to prevent reverse flow is a - ANSWER-
Backwater valve
A final water heater inspection shall be made only after - ANSWER-All work authorized
by permit has been installed
A flame spread index of _________ or less and a smoke developed index of _________
or less are viewed as acceptable values for combustibles in a plenum - ANSWER-25-50
A lavatory drain that is connected into the vent of the water closet is referred to as -
ANSWER-Wet vent
A negative pressure that can cause backflow is known as - ANSWER-Backsiphonage
A pipe that supplies potable water to any building or part of the lot is known as a -
ANSWER-Building supply
A pipe which contains waste that is free from fecal matter is - ANSWER-Waste
A pipe which makes an angle of not more than 45 degrees with the vertical is
considered - ANSWER-Horizontal
A plugged fitting located at the base of all soil stacks is called - ANSWER-Stack
cleanout
A pressure surge absorbing device operating through the compressibility of air is called
- ANSWER-Hammer arrestor
A pressure vacuum breaker is listed for - ANSWER-Backsiphonage only
A reduced pressure principle assembly is listed for - ANSWER-Backsiphonage and
backpressure
A sanitary t may not be used for what type of installation? - ANSWER-Back to back
toilets
A single wall vent connector shall not originate in a - ANSWER-Unoccupied attic
, A storm drain system is normally ________ entering a sanitary sewer - ANSWER-
Prohibited
A strack is always - ANSWER-Vertical
A vacuum relief valve must be installed in _____ water heaters and tanks connected to
water heaters - ANSWER-Bottom fed
A vent stack shall be required for every drainage stack that has how many branch
intervals or more? - ANSWER-5
A vent that is dry must be vertical until it is at least how far above the flood level rim? -
ANSWER-6 in
A vent which also serves as a drain is a - ANSWER-Wet vent
A vertical line of piping that extends one or more floors and recieved the discharge of
water closets and other fixtures is known as - ANSWER-Soil stack
A vertical vent that is a continuation of the drain to which it connects is a - ANSWER-
Continuous vent
A water closet shall not be closer than how much from its center to any side or wall? -
ANSWER-15 in
A water heater located in a garage within the vehicle path must be - ANSWER-Suitably
guarded against damage
A water heater vented into a fireplace or into a chimney serving a fireplace is -
ANSWER-prohibited
A wet vent serves as - ANSWER-A vent for one fixture and a drain for another fixture
Air testing of water supply piping shall be held at what pressure for not less than 15
minutes? - ANSWER-50
All fire resistance rated through penetration assemblies must be qualified by testing in
accordance to ASTM - ANSWER-E814
All health care related fixtures devices and equipment shall discharge ot the drainage
system through an indirect waste pipe by means of what? - ANSWER-Air gap
All horizontal drains shall be provided with cleanouts located not more than how many
feet apart - ANSWER-100 ft
