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Worksheets

Copper Pipe and Tubing Mod 14 #1

Total questions: 15

Worksheet time: 5mins

Name
Class
Date
1.

Compared to other types of piping, copper tube and fittings are generally

a)

less expensive

b)

more expensive

c)

difficult to install

d)

easy to install

2.

Tubes that are measured in nominal sizing have an OD that is

a)

1/4 inch larger than the nominal size

b)

1/2 inch larger than the nominal size

c)

1/8 inch larger than the nominal size

d)

1 inch larger than the nominal size

3.

Types K, L, M, and DWV copper tubing are measured using

a)

ID sizing

b)

OD sizing

c)

nominal sizing

d)

copper tube sizing

4.

Copper tube used for DWV is marked with the color code

a)

yellow

b)

orange

c)

blue

d)

green

5.

Take extra care when working with copper tube in cold temperatures because it can

a)

corrode

b)

harm your hands

c)

shrink

d)

break

6.

To make branches in a line of tube, plumbers use

a)

tees

b)

adapters

c)

couplings

d)

flanges

7.

Compared to the tubes they are joining, solder fittings are

a)

slightly smaller

b)

slightly larger

c)

significantly smaller

d)

significantly larger

8.

The valve most often used for draining and freezing protection above ground is the

a)

ball valve

b)

compression, stop, and waste valve

c)

globe valve

d)

gate valve

9.

A joint that is commonly used to join soft copper tubing from 1/4 to 2 inches is a(n)

a)

grooved joint

b)

sweat joint

c)

flare joint

d)

angle joint

10.

Rolling is an example of

a)

grooving

b)

bending

c)

joining

d)

measuring

11.

Hangers are primarily used to support tube, but they can also be used to support

a)

pressure checks

b)

channel struts

c)

vibration isolators

d)

c-clamps

12.

Structural site components to support the vertical load of the tube are attached using

a)

J-Hooks

b)

eye sockets

c)

wedge anchors

d)

tube riser clamps

13.

The part of the hanger that links the tube itself to the structural attachment is called a

a)

connector

b)

clevis

c)

clamp

d)

bracket

14.

A type of insulating material that cannot be used for copper tube is

a)

cork

b)

spray foam

c)

glass fibers

d)

mineral wool

15.

Where codes specify water testing at pressures higher than those available from the normal water supply, use a(n)

a)

higher head

b)

hydraulic test pump

c)

hand pump

d)

pressure gauge