Plumbing Quiz flashcards |

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M

Type ___ is the thinnest copper pipe.

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RED

Type M copper pipe has ____ color printing on it.

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6

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

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ELECTROLYSIS

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

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DIALECTRIC

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

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PVC

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

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PEX

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

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PB (polybutylene)

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

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EXPANSION TANK

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

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GALVANIZED

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

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4

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

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QUARTER

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

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VERTICAL

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

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2

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

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BACKWATER

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

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2

The minimum trap seal depth is ____ inches.

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4

The maximum trap seal depth is ____ inches.

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6

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

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1

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

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30

The minimum clear width for a toilet is ______inches.

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BIDET

In the bathroom a _________ would require a vacuum breaker.

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72

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

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18"

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

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3

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

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BALLARDS

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

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18

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

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UNIONS

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

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6

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

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DISCONNECT

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

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DRAIN TILE

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

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Long-Term Learning

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M

RED

6

ELECTROLYSIS

DIALECTRIC

PVC

PEX

PB (polybutylene)

EXPANSION TANK

GALVANIZED

4

QUARTER

VERTICAL

2

BACKWATER

2

4

6

1

30

BIDET

72

18"

3

BALLARDS

18

UNIONS

6

DISCONNECT

DRAIN TILE

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