Question 1

There are two types of compression fittings: the ____ fitting and the barrel compression fitting.&#10;A) sweated&#10;C) flared&#10;B) soldered&#10;D) crimped

Accepted Answer

The two types of compression fittings are flared fittings and barrel compression fittings. Of these two, the only option listed is the flared fitting, making it the best choice.

Question 2

What type of measurement would be taken from the end of a pipe to the center of a fitting?&#10;A) C-to-C&#10;C) C-to-E&#10;B) E-to-C&#10;D) E-to-E

Accepted Answer

E-to-C (End-to-Center) measurement is taken from the end of a pipe to the center of a fitting, which is a common practice in plumbing and piping to ensure accurate installation and fitment.

Question 3

Which of the following is cross-linked polyethylene?&#10;A) PE&#10;C) ABS&#10;B) PVC&#10;D) PEX

Accepted Answer

Cross-linked polyethylene is commonly referred to as PEX. Therefore, option D is the correct choice. PE is regular polyethylene, PVC is polyvinyl chloride, and ABS is acrylonitrile butadiene styrene, none of which are cross-linked polyethylene.

Question 4

The ____ occurs when a piping system is routed to a different direction with the use of a 45-degree elbow, travels for a distance, then is re-routed back to the original direction that it was traveling.

A) set
C) offset
B) span
D) travel

Accepted Answer

This type of piping system is commonly referred to as an offset, which involves using a 45-degree elbow to change the direction of the pipe, then traveling for a distance, and finally using another 45-degree elbow to re-route the pipe back to its original direction.

Question 5

What is installed in a piping system to catch any moisture that may exist because of condensation?&#10;A) A drip&#10;C) A dryer&#10;B) A collector&#10;D) A condenser

Accepted Answer

A drip is installed in a piping system to catch any moisture that may exist because of condensation. A drip is a type of trap placed at a low point in the system which collects and discharges condensate.

Question 6

When cutting brass, thick wall pipe, angle-iron, or copper, use a hacksaw blade that has ____ teeth per inch.&#10;A) 14&#10;C) 24&#10;B) 18&#10;D) 32

Accepted Answer

For cutting materials like brass, thick wall pipe, angle-iron, or copper, a hacksaw blade with 24 teeth per inch is ideal as it provides a good balance between cutting speed and finish.

Question 7

The waste disposal system should have a ____ inch drop for every horizontal foot of distance.&#10;A) 1/16&#10;C) 1/4&#10;B) 1/8&#10;D) 1/2

Accepted Answer

The standard slope for waste disposal systems is 1/4 inch drop for every horizontal foot of distance, which provides adequate drainage without creating too much velocity that can cause clogs or pipe damage. Choices A, B, and D are too shallow and will not provide enough flow to prevent clogging.

Question 8

The American Standard Pipe and the American Standard Pipe Thread were formed to ensure that all piping systems that were installed and threaded were of the same dimensions.

Accepted Answer

The American Standard Pipe and the American Standard Pipe Thread were created to standardize the dimensions of piping systems to ensure compatibility and prevent issues with assembly and installation.

Question 9

Most authorities accept ____ piping as a safe means of conveying a combustible gas to its final destination.&#10;A) plastic&#10;C) threaded steel&#10;B) sweated copper&#10;D) PEX

Accepted Answer

Threaded steel piping is commonly used for conveying combustible gases as it is strong, durable, and resistant to corrosion. Plastic piping may not be able to withstand high pressures or temperatures and could potentially melt or release toxic fumes. Sweated copper may have defects in the soldering that could leak gas. PEX is not typically used for gas lines.

Question 10

What method would be used to connect copper piping together?&#10;A) gluing&#10;C) sweating&#10;B) welding&#10;D) threading

Accepted Answer

Copper piping is typically connected together through a process called sweating, which involves heating the pipes and using solder to join them together. Gluing, welding, and threading are not appropriate methods for connecting copper piping.

Question 11

Flaring is usually reserved for use in most ____________________ applications rather than in piping systems.

Accepted Answer

The answer of Flaring is usually reserved for use in...

Question 12

What type of fitting allows a piping system to be connected to a fixed, unmovable object?&#10;A) coupling&#10;C) connector&#10;B) union&#10;D) bushing

Accepted Answer

The answer of What type of fitting allows a piping...

Question 13

What two types of methods can be used to connect PVC pipes?

Accepted Answer

The answer of What two types of methods can be...

Question 14

What type of measurement would be used to find the entire length of a pipe after it has been cut and threaded?&#10;A) C-to-C&#10;C) C-to-E&#10;B) E-to-C&#10;D) E-to-E

Accepted Answer

The answer of What type of measurement would be used...

Question 15

What tool should be used to smooth the end of the pipe after it has been cut?&#10;A) threader&#10;C) sandpaper&#10;B) tile&#10;D) reamer

Accepted Answer

The answer of What tool should be used to smooth...

Deck 13: Piping Systems