TEXAS STATE PLUMBING INSPECTORS TEST PAPER 2025
QUESTIONS WITH SOLUTIONS RATED A+
✔✔A water closet shall not be closer than how much from its center to any side or wall?
- ✔✔15 in
✔✔How large shall an access to a whirlpool pump be? - ✔✔12 in^2
✔✔Is wet venting between floors allowed in Texas? - ✔✔No
✔✔Pipes shall be lead free to what amount? - ✔✔.25%
✔✔Solder and flux shall be lead free to what amount? - ✔✔.2%
✔✔Exterior water piping shall be how far below frost level or a minimum of how deep? -
✔✔6-12 in
✔✔What is intumescence? - ✔✔Expansion when heated
✔✔Shall gas piping be grounded or bonded? - ✔✔Bond
✔✔What is tepid water? - ✔✔60-100 F
✔✔When determining the maximum pressure of a water heater what should one look at
to determine its maximum pressure? - ✔✔T&P tag
✔✔Commercial storage water heaters shall be set at what temperature? - ✔✔140 F
✔✔Cold water must enter a water heater on what side? - ✔✔Right
✔✔Can one reduce piping for a T&P? - ✔✔No
✔✔What should one remember when mounting several water heaters in parallel? -
✔✔First in last out
✔✔Vents are individual until they combine into a what? - ✔✔Common vent
✔✔A sanitary t may not be used for what type of installation? - ✔✔Back to back toilets
✔✔At what distance interval is a clean-out required? - ✔✔100 ft
✔✔Vents shall be supported at every length of what? - ✔✔4 ft
, ✔✔Appliance connections for fuel gas appliances shall not exceed what length? - ✔✔6
ft
✔✔What type of riser shall fuel gas installations use? - ✔✔Anodeless
✔✔Indoor combustion air requiring appliances shall be provided with how much
opening space per 1000 btu? - ✔✔1 in
✔✔Enclosures for indoor combustion air requiring appliances shall have openings at
what intervals to the top and bottom of the enclosure? - ✔✔12 in
✔✔Copper and brass piping should not be used for fuel gas if how much hydrogen
sulfide is present per 100 cu ft of gas? - ✔✔.3
✔✔What is the minimum burial depth for gas piping? - ✔✔12 in
✔✔Gas piping shall be tested to what amount but no less than 3 psig? - ✔✔1 1/2 times
✔✔Individual vents for water heaters shall not be less than how much vertical to
achieve proper draft? - ✔✔5 ft
✔✔Vent extensions through roofs shall terminate how high above the roof surface? -
✔✔6 in
✔✔How many fixtures may be up stream of a horizontal wet vent? - ✔✔1 or 2 with
double pattern fitting
✔✔Water closets shall not use more than how many gallons of water per flush? -
✔✔1.28
✔✔ Fixture connections which may be served through access panels are considered -
✔✔Accessible
✔✔The part of the lowest piping of a drainage system, which recieves the discharge
from the soil, waste and other drainage pipes inside the walls of the building and
conveys it to a point 2 feet outside the building wall is a - ✔✔Building drain
✔✔A vertical vent that is a continuation of the drain to which it connects is a -
✔✔Continuous vent
✔✔A vent which also serves as a drain is a - ✔✔Wet vent
✔✔A strack is always - ✔✔Vertical
QUESTIONS WITH SOLUTIONS RATED A+
✔✔A water closet shall not be closer than how much from its center to any side or wall?
- ✔✔15 in
✔✔How large shall an access to a whirlpool pump be? - ✔✔12 in^2
✔✔Is wet venting between floors allowed in Texas? - ✔✔No
✔✔Pipes shall be lead free to what amount? - ✔✔.25%
✔✔Solder and flux shall be lead free to what amount? - ✔✔.2%
✔✔Exterior water piping shall be how far below frost level or a minimum of how deep? -
✔✔6-12 in
✔✔What is intumescence? - ✔✔Expansion when heated
✔✔Shall gas piping be grounded or bonded? - ✔✔Bond
✔✔What is tepid water? - ✔✔60-100 F
✔✔When determining the maximum pressure of a water heater what should one look at
to determine its maximum pressure? - ✔✔T&P tag
✔✔Commercial storage water heaters shall be set at what temperature? - ✔✔140 F
✔✔Cold water must enter a water heater on what side? - ✔✔Right
✔✔Can one reduce piping for a T&P? - ✔✔No
✔✔What should one remember when mounting several water heaters in parallel? -
✔✔First in last out
✔✔Vents are individual until they combine into a what? - ✔✔Common vent
✔✔A sanitary t may not be used for what type of installation? - ✔✔Back to back toilets
✔✔At what distance interval is a clean-out required? - ✔✔100 ft
✔✔Vents shall be supported at every length of what? - ✔✔4 ft
, ✔✔Appliance connections for fuel gas appliances shall not exceed what length? - ✔✔6
ft
✔✔What type of riser shall fuel gas installations use? - ✔✔Anodeless
✔✔Indoor combustion air requiring appliances shall be provided with how much
opening space per 1000 btu? - ✔✔1 in
✔✔Enclosures for indoor combustion air requiring appliances shall have openings at
what intervals to the top and bottom of the enclosure? - ✔✔12 in
✔✔Copper and brass piping should not be used for fuel gas if how much hydrogen
sulfide is present per 100 cu ft of gas? - ✔✔.3
✔✔What is the minimum burial depth for gas piping? - ✔✔12 in
✔✔Gas piping shall be tested to what amount but no less than 3 psig? - ✔✔1 1/2 times
✔✔Individual vents for water heaters shall not be less than how much vertical to
achieve proper draft? - ✔✔5 ft
✔✔Vent extensions through roofs shall terminate how high above the roof surface? -
✔✔6 in
✔✔How many fixtures may be up stream of a horizontal wet vent? - ✔✔1 or 2 with
double pattern fitting
✔✔Water closets shall not use more than how many gallons of water per flush? -
✔✔1.28
✔✔ Fixture connections which may be served through access panels are considered -
✔✔Accessible
✔✔The part of the lowest piping of a drainage system, which recieves the discharge
from the soil, waste and other drainage pipes inside the walls of the building and
conveys it to a point 2 feet outside the building wall is a - ✔✔Building drain
✔✔A vertical vent that is a continuation of the drain to which it connects is a -
✔✔Continuous vent
✔✔A vent which also serves as a drain is a - ✔✔Wet vent
✔✔A strack is always - ✔✔Vertical
