Plumbing Quiz flashcards |

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M

Type ___ is the thinnest copper pipe.

RED

Type M copper pipe has ____ color printing on it.

6

The minimum horizontal support spacing for 3/4" steel pipe is ___ feet.

ELECTROLYSIS

Pipe corrosion from copper and galvanized pipe contacting each other is know as _______ .

DIALECTRIC

A ________ union installed between copper and galvanized pipe will prevent corrosion.

PVC

What type of pipe can't be used in indoor water distribution?

PEX

What type of pipe has the least amount of friction loss?

PB (polybutylene)

What type of pipe is most likely to fail due to defects?

EXPANSION TANK

When a pressure regulator creates a "closed system" there should be a _______ installed at the water heater.

GALVANIZED

A "Durham" system of piping uses cast iron and _________ pipe.

4

PVC & ABS horizontal drain pipe supports should be a minimum of ___ feet apart.

QUARTER

Waste drain pipes should have a minimum slope of _____ inch per foot.

VERTICAL

Drains transitioning from _________ to horizontal require the most gradual bend.

2

The minimum diameter for a washing machine stand pipe is _____ inches.

BACKWATER

When a fixture is above the sewer elevation and below the manhole elevation is should drain through a __________ valve.

2

The minimum trap seal depth is ____ inches.

4

The maximum trap seal depth is ____ inches.

6

What is the minimum number if inches a vent pipe can extend out of the roof?

1

The minimum air gap between the faucet outlet and the flood level rim of a bathroom sink is ___ inches.

30

The minimum clear width for a toilet is ______inches.

BIDET

In the bathroom a _________ would require a vacuum breaker.

72

In a shower the non-absorbent wall finish should extend a minimum of _______ inches above the drain.

18"

Laundry stand pipes should be a minimum of ____ inches in heigh.

3

Flexible gas line connectors for a water heater would not be longer than ____ feet.

BALLARDS

In the garage, water heaters in the path of a vehicle should be protected by _______ .

18

In the garage, water heaters should be raised above the floor ______ inches.

UNIONS

Water heaters should have ______ installed within 12 inches of the tank.

6

Water heater temperature and pressure relief valves must be located in the upper ___ inches of the tank

DISCONNECT

Electric water heaters must have a __________ within site of the tank.

DRAIN TILE

A pipe set in gravel running continuously along a buildings foundation is also known as ___________ .

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