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Module 1-4 Plumbing and Sanitary Systems

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

A type of cast iron pipe generally used for building installations

a)

SV type

b)

XV type

c)

SI type

d)

CI type

2.

The following best describe a vitrified clay pipe except one

a)

one of the oldest materials used for sewer lines

b)

brittle, not suitable for unstable ground

c)

highly resistant to most acid wastes

d)

may be softened or damaged by excessive hot water or chemical flow

3.

A brass pipe is made of an alloy of:

a)

15% zinc, 85% copper

b)

15%iron, 85% copper

c)

15% copper, 85% zinc

d)

15%copper, 85% iron

4.

A type of copper pipe used for underground installations

a)

K type

b)

L type

c)

M type

5.

A type of plastic pipe which is resistant to many acids, bases, salts, paraffinic hydrocarbons, halogens and alcohols.

a)

polyvinyl chloride

b)

chlorinated polyvinyl chloride

c)

unplasticized polyvinyl chloride

6.

A type of plastic pipe that has excellent chemical resistance across its operating temperature range, with a broad band of operating pressures

a)

polyvinyl chloride

b)

chlorinated polyvinyl chloride

c)

unplasticized polyvinyl chloride

7.

A type of plastic pipe most commonly used for DWV (drain-waste- vent) applications

a)

polyvinyl chloride

b)

acrylonitrile butadiene styrene

c)

polypropylene random

d)

styrene rubber plastic

8.

A washdown type of water closet has the trapway located at the:

a)

front of the bowl

b)

back of the bowl

9.

Has a large trapway making it less likely to clog and the flushing action is silent than the other types

a)

siphon jet

b)

siphon vortex

c)

washdown

d)

Reverse type

10.

The flushing action is through a whirlpool motion followed by a flush down of the liquid and waste completely

a)

siphon jet

b)

siphon vortex

c)

reverse trap

d)

Direct flush

11.

Refers to the vertical supply pipe which extends upward from one floor to the next.

a)

branch

b)

house service

c)

riser

d)

vent

12.

A type of water distribution in buildings where water is supplied to the plumbing fixtures by means of gravity.

a)

by normal water pressure

b)

by overhead feed system

c)

by air pressure distribution system

13.

Refers to the resistance produced by the flowing water with the fittings and interior surface of the pipe.

a)

resistance

b)

pressure

c)

friction

d)

water hammer

14.

A type of pump used in tall building water distribution.

a)

piston pump

b)

centrifugal pump

c)

stand pipe

d)

turbine pump

15.

A type of valve which is used to completely close or completely open the line but not necessarily to control the flow of water.

a)

globe valve

b)

check valve

c)

angle valve

d)

gate valve

16.

Sometimes referred to as a retention valve.

a)

gate valve

b)

globe valve

c)

angle valve

d)

foot valve

17.

Inserted into the water main and serves as a control of the water service.

a)

corporation stop

b)

curb stop

c)

meter stop

18.

A semi-liquid substance that accumulates at the bottom of the septic tank.

a)

sludge

b)

effluent

c)

septic

d)

scum

19.

decomposition caused by anaerobic bacteria.

a)

digestion

b)

leaching

c)

putrefaction

d)

purification

20.

Refers to a horizontal pipe receiving discharges from a water closet.

a)

waste branch

b)

soil branch

c)

waste stack

d)

soil stack