C36 Plumbing CSLB
Slip joint fittings are not allowed at - ANSWER: a waste arm or trip arm
On a waste line, what type of fitting can you use? - ANSWER: cleanout
wye of ¼ bend
sanitary tee
What would you use to connect GIP (galvanized iron pipe) to copper? - ANSWER:
brass fitting
One gallon of water weighs: - ANSWER: 8.33 pounds
One psi of water is equal to: - ANSWER: 2.31 feet
The specific gravity of water is: - ANSWER: 1.000
In a solar system, where do you place a pump valve? - ANSWER: supply and service
side of pump
In a solar system cross-connections are used if - ANSWER: if it is a closed-loop system
How many square feet would a family of six require if a family of four requires 48 sq. ft.
of solar panels? - ANSWER: 72------ 48/(4 family)=12 12x(6 family)=72
A 2 inch vent will suffice for: - ANSWER: 4 pedestal urinals
A dental cuspidor has how many fixture units? - ANSWER: 1
In water piping, slip joints may be used only in the ______ fixture_______. - ANSWER:
exposed---supply
What do you do in a restaurant to install a new water softener? - ANSWER: backwash
disposal must be sized by a building authority
In the pipe below, the best way to melt the ice in the pipe is from: - ANSWER: apply
heat from the supply end
How is pressure affected when a water softener is installed? - ANSWER: decreases
A single trap may receive the waste from a: - ANSWER: laundry tub and clothes washer
,When permitted for special conditions, which of
the following traps may be installed? - ANSWER:
What provision must be taken when installing drawn brass tubing traps not less than 17
B & S gauge on fixtures discharging liquid wastes? - ANSWER: traps exposed and
readily assessable
In swimming pools, where can you use copper pipe? - ANSWER: all lines
On building drains, what type of pipe is not generally used? - ANSWER: plastic
The heaviest copper pipe is: - ANSWER: Type K
Where can copper tubing be connected to a ½ inch copper 90° ell? - ANSWER: at both
ends
On a gas supply line to a water heater,¾ inch copper tube is permissible - ANSWER:
true
Review colors and stripes - ANSWER: Lavender -Blue
DWV-Yellow
Kelly-Green
Mad-Red
When cutting pipe, why is reamer used? - ANSWER: to remove internal burrs
Which of the following is used to thread pipe? - ANSWER: dies
What are anti-siphoning devices used for? - ANSWER: potable water systems
How is plastic adapted to cast-iron bell and spigot? - ANSWER: approved lead-joint
plastic adapter because lead cools faster than plastic absorbs
To cut plastic pipe, use a: - ANSWER: hacksaw
On flat-sided nuts and bolts, what sort of wrench would you use? - ANSWER: open-end
pipe
What is used to bend soft copper tubing? - ANSWER: spring bender
What is a yarning iron used for? - ANSWER: hub pipe
A torque wrench for a no-hub coupling should release at: - ANSWER: 60 inches/lb
On chrome fittings, what sort of wrench would you use? - ANSWER: strap
, On nickel-chrome pipe fittings what sort of wrench would you use? - ANSWER: strap
On plastic fitting, what sort of wrench would you use? - ANSWER: strap
What is symbol A? - ANSWER: flush-valve WIC
What is symbol B? - ANSWER: B. pedestal urinal
What is symbol C? - ANSWER: close-coupled W/C
What is symbol D? - ANSWER: flush-valve W/C
What is symbol E? - ANSWER: wall-hung urinal
What is symbol F? - ANSWER: stall urinal
What is tl1e symbol G? - ANSWER: wall-hung drinking fountain
What is the symbol H? - ANSWER: pedestal drinking fountain
What is the symbol I? - ANSWER: gate valve
What is the symbol J? - ANSWER: globe valve
What is the symbol K? - ANSWER: soldered tee
What is the symbol L? - ANSWER: floor drain
What is the symbol M? - ANSWER: roof drain
What is the symbol N? - ANSWER: shower stall
What is the symbol O? - ANSWER: lavatory
What is the symbol P? - ANSWER: right hand tub
What is the symbol Q? - ANSWER: kitchen sink
What is the symbol R? - ANSWER: laundry tray
What is the symbol S? - ANSWER: corner lavatory
How far does¾ inch brass pipe 100 feet long expand with a 100° F rise in temperature?
- ANSWER: 1 ¼ inch----------0.0000105 X 100 X 100 = .J 05 ft. X 12 in. = 1.26 in.
Slip joint fittings are not allowed at - ANSWER: a waste arm or trip arm
On a waste line, what type of fitting can you use? - ANSWER: cleanout
wye of ¼ bend
sanitary tee
What would you use to connect GIP (galvanized iron pipe) to copper? - ANSWER:
brass fitting
One gallon of water weighs: - ANSWER: 8.33 pounds
One psi of water is equal to: - ANSWER: 2.31 feet
The specific gravity of water is: - ANSWER: 1.000
In a solar system, where do you place a pump valve? - ANSWER: supply and service
side of pump
In a solar system cross-connections are used if - ANSWER: if it is a closed-loop system
How many square feet would a family of six require if a family of four requires 48 sq. ft.
of solar panels? - ANSWER: 72------ 48/(4 family)=12 12x(6 family)=72
A 2 inch vent will suffice for: - ANSWER: 4 pedestal urinals
A dental cuspidor has how many fixture units? - ANSWER: 1
In water piping, slip joints may be used only in the ______ fixture_______. - ANSWER:
exposed---supply
What do you do in a restaurant to install a new water softener? - ANSWER: backwash
disposal must be sized by a building authority
In the pipe below, the best way to melt the ice in the pipe is from: - ANSWER: apply
heat from the supply end
How is pressure affected when a water softener is installed? - ANSWER: decreases
A single trap may receive the waste from a: - ANSWER: laundry tub and clothes washer
,When permitted for special conditions, which of
the following traps may be installed? - ANSWER:
What provision must be taken when installing drawn brass tubing traps not less than 17
B & S gauge on fixtures discharging liquid wastes? - ANSWER: traps exposed and
readily assessable
In swimming pools, where can you use copper pipe? - ANSWER: all lines
On building drains, what type of pipe is not generally used? - ANSWER: plastic
The heaviest copper pipe is: - ANSWER: Type K
Where can copper tubing be connected to a ½ inch copper 90° ell? - ANSWER: at both
ends
On a gas supply line to a water heater,¾ inch copper tube is permissible - ANSWER:
true
Review colors and stripes - ANSWER: Lavender -Blue
DWV-Yellow
Kelly-Green
Mad-Red
When cutting pipe, why is reamer used? - ANSWER: to remove internal burrs
Which of the following is used to thread pipe? - ANSWER: dies
What are anti-siphoning devices used for? - ANSWER: potable water systems
How is plastic adapted to cast-iron bell and spigot? - ANSWER: approved lead-joint
plastic adapter because lead cools faster than plastic absorbs
To cut plastic pipe, use a: - ANSWER: hacksaw
On flat-sided nuts and bolts, what sort of wrench would you use? - ANSWER: open-end
pipe
What is used to bend soft copper tubing? - ANSWER: spring bender
What is a yarning iron used for? - ANSWER: hub pipe
A torque wrench for a no-hub coupling should release at: - ANSWER: 60 inches/lb
On chrome fittings, what sort of wrench would you use? - ANSWER: strap
, On nickel-chrome pipe fittings what sort of wrench would you use? - ANSWER: strap
On plastic fitting, what sort of wrench would you use? - ANSWER: strap
What is symbol A? - ANSWER: flush-valve WIC
What is symbol B? - ANSWER: B. pedestal urinal
What is symbol C? - ANSWER: close-coupled W/C
What is symbol D? - ANSWER: flush-valve W/C
What is symbol E? - ANSWER: wall-hung urinal
What is symbol F? - ANSWER: stall urinal
What is tl1e symbol G? - ANSWER: wall-hung drinking fountain
What is the symbol H? - ANSWER: pedestal drinking fountain
What is the symbol I? - ANSWER: gate valve
What is the symbol J? - ANSWER: globe valve
What is the symbol K? - ANSWER: soldered tee
What is the symbol L? - ANSWER: floor drain
What is the symbol M? - ANSWER: roof drain
What is the symbol N? - ANSWER: shower stall
What is the symbol O? - ANSWER: lavatory
What is the symbol P? - ANSWER: right hand tub
What is the symbol Q? - ANSWER: kitchen sink
What is the symbol R? - ANSWER: laundry tray
What is the symbol S? - ANSWER: corner lavatory
How far does¾ inch brass pipe 100 feet long expand with a 100° F rise in temperature?
- ANSWER: 1 ¼ inch----------0.0000105 X 100 X 100 = .J 05 ft. X 12 in. = 1.26 in.
