Types of Gas Piping Materials: Properties and Applications

Question 1

Copper is often used for gas piping.  Which characteristic is NOT a benefit of using copper piping?

Accepted Answer

Doesn't expand much with heat

Answer

Resists corrosion

Answer

Very strong

Answer

Easy to put in place

Question 2

In residential settings, what material is commonly employed for gas piping?

Accepted Answer

Copper

Answer

Brass

Answer

Polyethylene

Answer

Polybutylene

Question 3

Which gas piping material combines high flexibility with ease of installation?

Accepted Answer

Corrugated stainless steel tubing (CSST)

Answer

Galvanized steel

Answer

Black iron

Answer

Rigid plastic pipe

Question 4

Which gas piping material is renowned for its flexibility and ease of installation?

Accepted Answer

Polyethylene

Answer

Copper

Answer

Polybutylene

Answer

Steel

Question 5

What is the primary advantage of utilizing copper for gas piping?

Accepted Answer

Corrosion resistance

Answer

Cost-effectiveness

Answer

Flexibility

Answer

Ease of soldering

Question 6

According to the International Fuel Gas Code, which material is prohibited for use as gas piping in concealed locations?

Accepted Answer

Polybutylene

Answer

Copper

Answer

Polyethylene

Answer

Steel

Question 7

What is a key property of steel piping that makes it suitable for high-pressure gas systems?

Accepted Answer

Durability

Answer

Flexibility

Answer

Corrosion resistance

Answer

Low cost

Question 8

Which type of gas piping material is known for its resistance to chemicals and solvents?

Accepted Answer

Polyethylene

Answer

Copper

Answer

Polybutylene

Answer

Steel

Question 9

Which type of fitting is typically used to connect copper gas piping?

Accepted Answer

Solder joints

Answer

Compression joints

Answer

Flared joints

Answer

Threaded joints

Question 10

What is the purpose of a dielectric union in a gas piping system?

Accepted Answer

To prevent corrosion between dissimilar metals

Answer

To provide a flexible connection

Answer

To regulate gas flow

Answer

To isolate sections of the system

Question 11

What type of gas piping material is commonly utilized in underground applications due to its high strength and durability?

Accepted Answer

Steel

Answer

Copper

Answer

Polybutylene

Answer

Polyethylene

Question 12

Which type of gas piping material offers both flexibility and resistance to kinking?

Accepted Answer

Corrugated stainless steel tubing (CSST)

Answer

Rigid copper tubing

Answer

Black iron pipe

Answer

Sturdy polyethylene (PE) pipe

Question 13

Which code serves as the governing authority for the installation of gas piping systems in the United States?

Accepted Answer

NFPA 54

Answer

ANSI/ICC A112.19.2

Answer

IRC

Answer

IBC

Question 14

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

Accepted Answer

Maintaining a steady gas pressure

Answer

Preventing excessive pressure in appliances

Answer

Isolating gas flow in emergencies

Answer

Filtering impurities from the gas supply

Question 15

Which factor is NOT relevant when selecting gas piping materials?

Accepted Answer

Aesthetics

Answer

Pressure rating

Answer

Chemical compatibility

Answer

Cost

Question 16

Which type of polyethylene (PE) piping is specifically designed for underground gas distribution?

Accepted Answer

PE-4710

Answer

PE-RT

Answer

PE-Xa

Answer

PE-100

Question 17

When connecting CSST piping to a gas appliance, which connection method is appropriate?

Accepted Answer

Compression fitting

Answer

Flare fitting

Answer

Soldering

Answer

Threaded connection

Question 18

Which type of gas piping material is renowned for its malleability and ease of installation due to its corrugated design?

Accepted Answer

Corrugated Stainless Steel Tubing (CSST)

Answer

Black Iron Pipe

Answer

Galvanized Steel Pipe

Answer

Copper Tubing

Question 19

Identify the type of gas piping material that exhibits exceptional resistance to corrosion and oxidation.

Accepted Answer

Stainless Steel Pipe

Answer

Galvanized Steel Pipe

Answer

Copper Tubing

Answer

Black Iron Pipe

Question 20

Which of the following poses a significant disadvantage when utilizing black iron pipe for gas piping systems?

Accepted Answer

Susceptibility to corrosion and rust formation

Answer

Necessity of specialized tools for installation

Answer

High acquisition cost

Answer

Difficulty in bending

Question 21

For underground gas piping installations, which material is commonly employed due to its suitability?

Accepted Answer

Polyethylene (PE) Pipe

Answer

Corrugated Stainless Steel Tubing (CSST)

Answer

Copper Tubing

Answer

Stainless Steel Pipe

Question 22

When installing gas piping using copper tubing, which connection method is required?

Accepted Answer

Flared or soldered connections

Answer

Welding the joints together

Answer

Using compression fittings

Question 23

Which type of gas piping material is characterized by its exceptional strength and durability?

Accepted Answer

Steel Pipe

Answer

Polyethylene (PE) Pipe

Answer

Corrugated Stainless Steel Tubing (CSST)

Answer

Copper Tubing

Question 24

In the United States, which code governs the installation of gas piping systems?

Accepted Answer

National Fuel Gas Code (NFPA 54)

Answer

International Building Code (IBC)

Answer

Uniform Plumbing Code (UPC)

Question 25

When connecting dissimilar metal gas piping materials, what is the primary purpose of using a dielectric union?

Accepted Answer

To prevent galvanic corrosion

Answer

To enhance flexibility

Answer

To increase joint strength

Answer

To optimize gas flow

Question 26

Which of the following is a key advantage of utilizing polyethylene (PE) pipe for gas piping systems?

Accepted Answer

Flexibility and resistance to chemicals

Answer

High strength

Answer

Ease of repair

Answer

Low cost