[D2L] 102IA&B Flashcards

1
Q

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

A

The authority having jurisdiction

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2
Q

The responsibilities of a gasfitter include the venting of gas appliances

A

True

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3
Q

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

A

A&B Gasfitter

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4
Q

Natural Rubber is the only approved gasket material for gas appliances

A

False, because the oil dissolves

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5
Q

PE piping is only to be used underground

A

True

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6
Q

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

A

B149.1

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7
Q

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

A

11” wc

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8
Q

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

A

The utility company

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9
Q

What underground piping needs a tracer wire?

A

PE plastic

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10
Q

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

A

12”

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11
Q

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

A

False

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12
Q

What location can a swing joint not be installed?

A

Concealed location

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13
Q

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

A

24”

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14
Q

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

A

125 psi

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15
Q

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

A

False, You can’t use close nipples

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16
Q

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

A

15 psi for 15 minutes

17
Q

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

A

3”

18
Q

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?

A

K

19
Q

Hose and Hose fittings must be rated for

A

350 psi

20
Q

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

A

1” WC

21
Q

Threaded bushings are not allowed on gas lines

A

False, they are allowed

22
Q

A dirt pocket must be at least

A

3” in depth(length)

23
Q

Gas fittings which are not allowed to be concealed are:

A

Unions, also swing joints

24
Q

Which fitting is prohibited?

A

Close Nipple

25
Q

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

A

sleeved or wrapped

26
Q

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

A

True

27
Q

Dirt pockets are required on all RTU’s

A

False

28
Q

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

A

2”

29
Q

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?

A

24”