[D2L] 102IA&B

Question 1

Who is responsible for the approval of the installation of gas fired appliances?

Answer 1

The authority having jurisdiction

Question 2

The responsibilities of a gasfitter include the venting of gas appliances

Answer 2

True

Question 3

Who is qualified to run a gas line underground from a house to a garage?

Answer 3

A&B Gasfitter

Question 4

Natural Rubber is the only approved gasket material for gas appliances

Answer 4

False, because the oil dissolves

Question 5

PE piping is only to be used underground

Answer 5

True

Question 6

What is the proper number for the CSA/CSA-Natural Gas and Propane Installation code?

Answer 6

B149.1

Question 7

What pressure is propane after the 2nd stage regulator delivered?

Answer 7

11” wc

Question 8

Who installs services and adjusts the service regulator which is usually set at 7-14” wc on a residential natural gas installation?

Answer 8

The utility company

Question 9

What underground piping needs a tracer wire?

Answer 9

PE plastic

Question 10

All underground piping or tubing must have sufficient cover to prevent damage to the gas line. What is the minimum depth for a trench?

Answer 10

12”

Question 11

A defective section of gas piping or tubing may be repaired by a qualified gas fitter

Answer 11

False

Question 12

What location can a swing joint not be installed?

Answer 12

Concealed location

Question 13

What is the minimum inches underground gas piping running under a commercial drive be?

Answer 13

24”

Question 14

What is the minimum psi rating piping used in gas installations be rated for?

Answer 14

125 psi

Question 15

Close nipples shall only be used in applications where there is insufficient space to allow the installation of a standard nipple

Answer 15

False, You can’t use close nipples

Question 16

What standards of pressure testing shall a residential piping system with less than 200 feet of piping adhere to during the rough in stage?

Answer 16

15 psi for 15 minutes

Question 17

What minimum face diameter must a gas pressure gauge have when testing gas lines?

Answer 17

3”

Question 18

What type of Copper tubing can be laid underground without needing to be coated with an extruded PVC or PE Resin at time of manufacture?

Answer 18

K

Question 19

Hose and Hose fittings must be rated for

Answer 19

350 psi

Question 20

Maximum allowable pressure drop on a low-pressure gas system is

Answer 20

1” WC

Question 21

Threaded bushings are not allowed on gas lines

Answer 21

False, they are allowed

Question 22

A dirt pocket must be at least

Answer 22

3” in depth(length)

Question 23

Gas fittings which are not allowed to be concealed are:

Answer 23

Unions, also swing joints

Question 24

Which fitting is prohibited?

Answer 24

Close Nipple

Question 25

Any point where gas lines go through a concrete wall they must be

Answer 25

sleeved or wrapped

Question 26

The finish piping is installed after the rough in piping and pressure tested at working pressure

Answer 26

True

Question 27

Dirt pockets are required on all RTU's

Answer 27

False

Question 28

When drilling a hole in a joist it must be how far away from the top and bottom of the joist?

Answer 28

2"

Question 29

To add a gas line to a system, you can avoid having to increase pipe sizes as long as your tee is within how close to the meter?

Answer 29

24"