1. In plumbing connections, the point at which a pipe, fitting or valve is connected to another pipe, fitting or valve is called a (an):

a. adapter

b. flange

c. seal

d. joint

 

2. In plastic pipe, heat fusion is also sometimes referred to as:

a. thermal bonding

b. fusion welding

c. socket fusion

d. all of the above

 

3. The purpose of solvent cement is to:

a. partially dissolve the pipe surface

b. provide a glued joint

c. clean the pipe surfaces

 

4. Plastic pressure pipes which cannot be joined by solvent cement joints include:

a. polyvinyl chloride (PVC)

b. chlorinated polyvinyl chloride (CPVC)

c. acrylonitrile-butadiene-styrene (ABS)

d. polyethylene

 

5. The following pipe materials necessitate the use of a primer when preparing the plastic for a joint:

a. ABS

b. CPVC

c. polybutylene

d. polyethylene

 

6. All solvent cements are the same. (True or False)

 

7. Solvent cement joints are used to join plastic with copper pipe. (True or False)

 

Match choices a, b and c with their respective description number 8, 9 or 10.

a. compression insert fitting

b. flared joint

c. slip joint

8. One pipe slides into another and a gasket, “o” ring, packing or caulking is used to make the joint tight.

9. A fitting with barbed ends that are forced into the ends of flexible polyethylene or polybutylene tubing to be joined and are sometimes secured into place by a clamping device around the outside of the pipe end.

10. A joint used to connect flexible plastic tubing or soft copper tube to a fitting. The watertight connection is made by placing a special nut with female pipe threads over the tubing end and then spreading the end of this tubing with a plug or screw-type tool. When the male fitting end is then screwed into the female nut and tightened, the spread tubing end is forced to make a leak-proof compression seal.