Deck 2: Pipe Joining Techniques

Question 1

The preferred method of joining PE pipe is solvent cement.

Answer 1

False

Question 2

The pressure rating of PEX piping does not change with temperature.

Answer 2

False

Question 3

Plastic materials will not conduct electricity.

Answer 3

True

Question 4

The type of plastic which cannot be softened by the application of heat is called

A) thermoplastic.
B) thermoset.
C) CPVC.
D) PVC.

Question 5

Universal plastic pipe cements are preferred by the manufacturers of plastic pipe.

Question 6

Plastic pipe sizes are either outside diameter or inside diameter controlled.

Question 7

Plastic pipe should be pressure tested with air to dry the solvent cement inside the pipe.

Question 8

Some plastic piping materials have both nonpressure and pressure-application ratings.

Question 9

Cast iron pipe comes standard in 20 foot lengths.

Question 10

As plastic pipe size increases, the pressure rating increases.

Question 11

SDR and SIDR ratios are the same thing.

Question 12

Cast iron pipe comes standard in 10 foot lengths.

Question 13

The largest portion of the plastic piping market is used for ____ applications.

A) fire sprinkler
B) process piping
C) drain, waste, and vent
D) underground piping

Question 14

Most plastic piping must be protected from prolonged exposure to sunlight.

Question 15

CPVC pipe is suitable for both hot and cold water applications.

Question 16

Most plastic pipe materials have the same pressure/temperature ratings.

Question 17

All CSST tubing is manufactured to the same dimensions.

Question 18

Plastic pipe expands and contracts more than steel pipe.

Question 19

Galvanized steel pipe is designed for use in fuel gas systems.

Question 20

Steel pipe is the strongest and toughest piping material made.

Question 21

Where can you find the threshold limits for worker exposure to the solvents used for solvent cement joining?

A) label on the solvent cement can
B) insert flyer in the box of solvent cement cans
C) Safety Data Sheet
D) NIOSH website

Question 22

Which of the following plastic piping materials CANNOT be joined using solvent cement?

A) ABS
B) PE
C) CPVC
D) PVC

Question 23

Which of the following is NOT an advantage of plastic piping?

A) corrosion resistance
B) chemical resistance
C) one type serves all purposes
D) light weight

Question 24

What type of joints are commonly used to join PE and PEX tubing?

A) elastomeric gaskets
B) flanges
C) heat fusion
D) mechanical fittings

Question 25

Which of the following is a nonrigid piping material?

A) ABS
B) CPVC
C) PE
D) PP

Question 26

Which type of piping is normally joined using elastomeric sealing gaskets?

A) DWV piping
B) fire sprinkler piping
C) irrigation piping
D) underground PVC pressure and sewer piping

Question 27

In solvent cement joining, the cement is applied to

A) the outside of the pipe end and the inside of the socket.
B) the outside of the pipe end only.
C) the inside of the socket only.
D) none of the above.

Question 28

When colored piping is used, gas distribution piping would normally be what color(s)?

A) orange
B) green
C) tan or gray
D) yellow or black with yellow stripes

Question 29

The four types of heat fusion joining are:

A) butt fusion, stab fusion, electrofusion, and saddle fusion.
B) crimp fusion, socket fusion, electrofusion, and saddle fusion.
C) socket fusion, ferrule fusion, butt fusion, and stab fusion.
D) butt fusion, socket fusion, electrofusion, and saddle fusion.

Question 30

Which is a type of piping that is no longer available?

A) ABS
B) PB
C) PE
D) PP

Question 31

Type L copper tubing is coded with which color stripe and lettering?

A) red
B) blue
C) green
D) yellow

Question 32

Which of the following is NOT a type of mechanical fitting joint?

A) electrofusion
B) crimp ring
C) nut ferrule
D) stab-type

Question 33

The joining method to be used for plastic piping depends on

A) the nature of the molecules and polymer chains.
B) whether the pipe is OD- or ID-controlled.
C) whether the plastic will burn in the presence of a flame.
D) the conductivity of the plastic.

Question 34

The common element in all plastic polymers is

A) carbon.
B) chlorine.
C) hydrogen.
D) nitrogen.

Question 35

Which of the following is NOT an acceptable method of joining copper tubing?

A) solvent cement
B) brazing
C) flaring
D) soldering