WorksheetsCopper Pipe and Tubing Mod 14 #1
Total questions: 15
Worksheet time: 5mins
Compared to other types of piping, copper tube and fittings are generally
less expensive
more expensive
difficult to install
easy to install
Tubes that are measured in nominal sizing have an OD that is
1/4 inch larger than the nominal size
1/2 inch larger than the nominal size
1/8 inch larger than the nominal size
1 inch larger than the nominal size
Types K, L, M, and DWV copper tubing are measured using
ID sizing
OD sizing
nominal sizing
copper tube sizing
Copper tube used for DWV is marked with the color code
yellow
orange
blue
green
Take extra care when working with copper tube in cold temperatures because it can
corrode
harm your hands
shrink
break
To make branches in a line of tube, plumbers use
tees
adapters
couplings
flanges
Compared to the tubes they are joining, solder fittings are
slightly smaller
slightly larger
significantly smaller
significantly larger
The valve most often used for draining and freezing protection above ground is the
ball valve
compression, stop, and waste valve
globe valve
gate valve
A joint that is commonly used to join soft copper tubing from 1/4 to 2 inches is a(n)
grooved joint
sweat joint
flare joint
angle joint
Rolling is an example of
grooving
bending
joining
measuring
Hangers are primarily used to support tube, but they can also be used to support
pressure checks
channel struts
vibration isolators
c-clamps
Structural site components to support the vertical load of the tube are attached using
J-Hooks
eye sockets
wedge anchors
tube riser clamps
The part of the hanger that links the tube itself to the structural attachment is called a
connector
clevis
clamp
bracket
A type of insulating material that cannot be used for copper tube is
cork
spray foam
glass fibers
mineral wool
Where codes specify water testing at pressures higher than those available from the normal water supply, use a(n)
higher head
hydraulic test pump
hand pump
pressure gauge
