Types of Gas Piping Systems: Online Learning Quizzes

Question 1

Which of the following gases is NOT commonly used in residential gas piping systems?

Accepted Answer

Helium

Answer

Natural gas

Answer

Propane

Answer

LPG

Question 2

In gas piping systems, which material is not permitted for use?

Accepted Answer

PVC

Answer

Copper

Answer

Galvanized Steel

Question 3

Which of the following actions should NOT be taken when working with gas piping systems to ensure safety?

Accepted Answer

Smoke or engage in any activities that could create sparks or flames in the work area.

Answer

Inspect the system for leaks before using it.

Answer

Wear appropriate personal protective equipment.

Answer

Use only approved materials and components.

Question 4

Which type of gas piping system is most frequently employed for residential cooking and heating applications?

Accepted Answer

Natural gas

Answer

Propane

Answer

Butane

Answer

Liquefied Petroleum (LP) gas

Question 5

In a gas piping system, which primary component is responsible for delivering gas to appliances?

Accepted Answer

Gas line

Answer

Regulator

Answer

Valve

Answer

Fitting

Question 6

When installing a gas piping system, the maximum allowable distance between pipe supports varies based on which factors?

Accepted Answer

Pipe size and material

Answer

24 inches

Answer

12 inches

Answer

18 inches

Question 7

What is the primary function of a gas pressure regulator in a piping system?

Accepted Answer

To reduce and maintain a stable gas pressure

Answer

To protect against gas leaks

Answer

To filter impurities from the gas

Answer

To control gas flow

Question 8

Which type of gas piping material is known for its flexibility and resistance to corrosion?

Accepted Answer

Corrugated Stainless Steel Tubing (CSST)

Answer

Galvanized steel

Answer

Copper

Question 9

What is the process known as "purging" in the context of gas piping systems?

Accepted Answer

Removing air from the system before introducing gas

Answer

Testing the system for leaks

Answer

Cleaning the system of debris

Question 10

Which of the following is a common tool utilized for leak testing gas piping systems?

Accepted Answer

Manometer

Answer

Voltmeter

Answer

Thermometer

Question 11

Which type of valve is commonly employed to isolate a section of a gas piping system?

Accepted Answer

Ball valve

Answer

Gate valve

Answer

Globe valve

Answer

Diaphragm valve

Question 12

When routing gas piping in proximity to electrical wiring, what is the recommended distance to maintain?

Accepted Answer

Varies based on local codes and regulations

Answer

6 inches

Answer

18 inches

Answer

12 inches

Question 13

What is the main function of a pressure regulator in a gas piping system?

Accepted Answer

Maintains constant gas pressure

Answer

Filters impurities from gas

Answer

Isolates system sections

Answer

Prevents gas leaks

Question 14

Which safety device is mandated to shut off the gas supply in case of a leak or excessive pressure?

Accepted Answer

Excess flow valve

Answer

Pressure relief valve

Answer

Ball valve

Answer

Check valve

Question 15

When testing gas piping systems for leaks, the recommended method is:

Accepted Answer

Soap bubble test

Answer

Electrical continuity test

Answer

Pressure gauge test

Answer

Flame test

Question 16

In sizing a gas piping system, the factor with the most significant influence is:

Accepted Answer

Gas flow rate

Answer

Pipe material

Answer

Pipe length

Answer

Number of fittings

Question 17

Which type of fitting is used to change the direction of a gas pipe run?

Accepted Answer

Elbow

Answer

Tee

Answer

Reducer

Answer

Union

Question 18

In the United States, the code governing the installation and maintenance of gas piping systems is the:

Accepted Answer

International Fuel Gas Code (IFGC)

Answer

Building Code of New York State

Answer

National Electrical Code (NEC)

Answer

Uniform Plumbing Code (UPC)

Question 19

For underground gas piping, which material is commonly chosen due to its corrosion resistance and durability?

Accepted Answer

Polyethylene

Answer

Copper

Answer

Polyvinyl chloride (PVC)

Answer

Steel

Question 20

Which type of pipe fitting allows for a change in the direction of a gas pipe while maintaining unrestricted flow?

Accepted Answer

Elbow

Answer

Union

Answer

Reducer

Answer

Tee

Question 21

Which of the following is a crucial safety requirement for gas piping systems?

Accepted Answer

Proper venting

Answer

Installing gas appliances near potential ignition sources

Answer

Using flexible pipe

Answer

Using unapproved materials

Question 22

What is the primary function of a gas leak detector in a gas piping system?

Accepted Answer

Detecting and alerting occupants to gas leaks

Answer

Regulating gas pressure

Answer

Preventing corrosion

Answer

Providing support for the gas pipe

Question 23

Which type of gas piping system is typically used for portable gas appliances?

Accepted Answer

Flexible gas hose

Answer

Rigid metal pipe

Answer

Corrugated stainless steel tubing

Answer

Polyethylene pipe

Question 24

Which of the following is NOT a common type of gas piping system encountered in residential and commercial settings?

Accepted Answer

PVC

Answer

Natural gas

Answer

LP gas

Answer

Propane

Question 25

What is the primary function of a gas pressure regulator in a piping system?

Accepted Answer

To maintain a steady and consistent gas pressure

Answer

To control the flow of gas

Answer

To measure gas consumption

Answer

To prevent gas leaks

Question 26

Which specialized tool is used to widen and shape the end of a gas pipe during installation?

Accepted Answer

Flaring tool

Answer

Wrench

Answer

Pipe cutter

Answer

Threader

Question 27

What is the primary purpose of a gas leak detector in a piping system?

Accepted Answer

To identify and alert to the presence of gas leaks

Answer

To measure gas pressure

Answer

To vent excess gas

Answer

To control the flow of gas

Question 28

What is the primary advantage of using black iron gas piping?

Accepted Answer

Durability and resistance to corrosion

Answer

Ease of installation and flexibility

Answer

Light weight and non-conductivity

Answer

Low cost and wide availability

Question 29

What is the purpose of a gas pressure regulator in a gas piping system?

Accepted Answer

To regulate and maintain gas pressure within a desired range

Answer

To measure gas flow rate

Answer

To prevent backflow of gas

Question 30

Which type of gas piping system is often used for temporary gas installations?

Accepted Answer

CSST Gas Piping System

Answer

Copper Gas Piping System

Answer

Black Iron Gas Piping System

Answer

Polyethylene Gas Piping System

Question 31

What is the primary purpose of a gas meter in a gas piping system?

Accepted Answer

To measure the volume of gas consumed

Answer

To regulate gas pressure

Answer

To serve as a safety shut-off device

Answer

To prevent backflow of gas

Question 32

Which component in a gas piping system controls the flow of gas?

Accepted Answer

Gas valve

Answer

Gas meter

Answer

Pressure regulator

Question 33

Which of the following is a key safety requirement for gas piping systems?

Accepted Answer

Proper ventilation to prevent the accumulation of gas

Answer

Use of flammable materials around gas piping

Answer

Installation of unapproved appliances

Answer

Lack of access to shut-off valves

Question 34

What type of pipe joint is typically used for connecting copper pipes in gas piping systems?

Accepted Answer

Soldered joint

Answer

Compression joint

Answer

Flared joint

Answer

Threaded joint