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NFPA 58 > Chapter 6 installation of LP – gas systems > Flashcards

Chapter 6 installation of LP – gas systems Flashcards

1
Q

LP gas containers Shall be located ____________ unless they are specifically allowed to be located inside of buildings

A

Outside of buildings

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2
Q

LP gas containers shall be allowed in buildings only if containers are less than ______ water capacity for the purposes of being filled in buildings or structures complying with chapter 10

A

125 gallons

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3
Q

LP gas containers shall be allowed in buildings for cylinders awaiting ________, ________, or _________ when stored in a coordinates with chapter 8

A

Use, resale, or exchange

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4
Q

LP gas containers shall be allowed in buildings for containers on LP gas _________ garage in a coordinates with section 11.16

A

Fuel vehicles

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5
Q

LP gas containers shall be allowed within buildings if the containers use with LP gas ____________ comply with 11.15.1

A

Portable engine fuel systems

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6
Q

No part of an underground or mounded ASME container shall be ________ from a building or line of adjoining property that can be built upon

A

10 feet

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7
Q

The distance between containers shall be a minimum of ______ the sum of diameters of a adjacent containers

A

1/4

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8
Q

The distance for above ground containers from 125 gallons to 500 gallons Shall be, no less than _______ away from buildings and lines of adjoining property that can be built upon

A

10 feet

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9
Q

The distance between a building and an above ground container less than 125 gallons Is equal to

A

0 feet

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10
Q

All underground containers, larger than 2000 gallons are required to be a minimum of ______ from other containers important buildings in line of adjoining property

A

50 feet

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11
Q

All underground containers from one to 2000 gallons are required to be a minimum distance away from buildings and property lines

A

10 feet

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12
Q

Cylinders shall not be installed or located underneath any buildings unless the space is open to the atmosphere for ___________ of its perimeter or more.

A

50%

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13
Q

We containers are installed parallel within ends in line, the number of containers in one group:

A

Shall not be limited

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14
Q

Combustible materials should not accumulate or be stored within ________ of a container

A

10 feet

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15
Q

The minimum horizontal separation between above ground LP – gas containers and above ground tanks containing liquids, having flashpoint below 200°F shall be

A

20 feet

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16
Q

All above ground containers shall be

A

Painted

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17
Q

Cylinder shall not be indirect contact with

A

The soil 

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18
Q

Steel supports should be protected against fire exposure with a material that has a fire resistance rating of at least _____

A

Two hours

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19
Q

Continuous steel skirts that have only one opening that is ________ or less in diameter shall have fire protection applied to the outside of the skirts

A

18 inches

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20
Q

Underground containers installed in areas with no vehicular traffic Shall be installed at least

A

6 inches below grade

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21
Q

For underground tank installations within 10 feet of a public vehicular, thorough, fair or designed parking location, a non-interchangeable underground container shall be installed

A

18 inches below grade

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22
Q

If 18 inches below grade cannot be attained for an underground tank subject to vehicular traffic

A

A vehicular barrier shall be provided

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23
Q

Approved interchangeable above ground underground container, assemblies installed underground shall not be placed with the container shell more than ________ below grade

A

12 inches

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24
Q

The installation of a buried container shall include protection for the container and piping against ____________ from vehicular traffic

A

Physical damage

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25
Q

Prior to digging, the location of underground and mounded containers and piping in the vicinity of construction and excavation activities shall be determined in the installation shall be

A

Protected from damage

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26
Q

Where a container is to be abandoned underground, as much LP liquid gas as practical shall be removed through the container at the

A

Liquid withdrawal connection

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27
Q

Where the container is to be abandoned underground as much of the remaining LPG vapor as practical shall be removed through a

A

Vapor connection

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28
Q

Where a container is to be abandoned underground, the vapor shall be either recovered, burned,

A

Or vented to the atmosphere

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29
Q

Where a container is to be abandoned underground, where only vapor LP gas at atmospheric pressure remains in the container the container shall be filled with

A

Water, sand, or foam plastic

30
Q

The discharge of the regulator vent shall be above the

A

Highest probable water level

31
Q

A corrosion protection system shall be installed on all underground, steel containers, utilizing a

A

Cathodic protection system that consist of a sacrificial anode

32
Q

All underground containers shall be set level in Shall be surrounded by ________ firmly tamped in place

A

Earth or sand

33
Q

Backfill shall be free of

A

Rocks and abrasives

34
Q

Mounding material, Shall be earth, sand, or other non-combustible materials and shall provide a minimum thickness of cover for the container of at least what depth?

A

12 inches

35
Q

Installation of containers on roof of buildings shall be _______ unless approved by the authority having jurisdiction and the fire department

A

Prohibited

36
Q

Where the authority having jurisdiction and the fire department have approved and installation of a container, it shall

A

Be of 2000 gallons or less water capacity

37
Q

An ASME container installed on the roof of the building shall always have _________ , one at the controls of the vehicle, supplying LP gas, and the other at the controls of the container

A

Two operators

38
Q

Pressure relief devices shall be installed so that the pressure relief device is in direct communication with the ________ of the container

A

Vapor space

39
Q

Regulators connected to a single container permanent installation shall Be directly attached to

A

The vapor service valve

40
Q

The point of discharge from the required pressure relief device on regulated equipment installed outside of buildings or occupancies and fixed piping systems shall be located not less than

A

3 feet horizontally away from any building

41
Q

The point of discharge from the required pressure relief device on regulated equipment installed outside of buildings shall not discharge beneath or inside any build or occupied structure unless the space is enclosed for more

A

50% of its perimeter

42
Q

The point of discharge shall also be located not less than ______ in any direction from any source of ignition openings into direct vent appliances, or mechanical ventilation air intakes

A

5 feet

43
Q

A two stage regulator system, and integral, two-stage regulator, or a two PSI regulator system shall be required on all fixed piping systems ______ appliance systems at 11 inches of water column.

A

1/2 psi

44
Q

Metallic pipe joints shall be permitted to be _____, _____, _____, _____, using pipe and fittings.

A

Threaded, flanged, welded, or brazed

45
Q

Fittings and flanges shall be designed for pressure rating _______ then the required pressure of the service for which they are used.

A

Equal to or greater than

46
Q

Brazed joints shall be made with the brazing material having a melting point at:

A

1000°F

47
Q

We were condensation of vapor can occur, piping shall be. ______ to the container or means shall be provided for revaporizing the condensate.

A

Sloped back to the container

48
Q

Steel piping larger than 1 inch installed underground shall have a

A

Cathodic protection system

49
Q

Polyethylene and polyamide pipe and tubing shall be installed:

A

Outdoors underground only

50
Q

Polyethylene and polyamide pipe and tubing shall be installed in conduit or shielded if a min _______ cannot be provided

A

12 inches of cover

51
Q

Polyamide and polyethylene pipe that is not encased shall have a minimum wall thickness of

A

0.090 inches

52
Q

Flexible connectors shall be installed in accordance with the:

A

Manufacturers instructions

53
Q

Flexible, metallic connectors, shall not exceed ________ in overall length when used with liquid or vapor piping on stationary containers of 2000 gallons water capacity

A

5 feet

54
Q

At least one remote shut down station for internal valves in liquid service shall be installed not less than _______ or more than 100 feet from the liquid transfer point

A

25 feet

55
Q

On new installations and on existing installations, secondary container storage systems with an aggregate water capacity of more than 4000 gallons utilizing a liquid transfer line that is 1-1/2” or larger and a pressure equalizing vapor line that is 1-1/4” or larger shall be Equipped with:

A

Emergency shut off valves

56
Q

An emergency shut off valve shall be installed in the transfer lines of fixed piping transfer system within within ______ of lineal pipe from the nearest end of the hose or swivel type pipe and connect

A

20 feet

57
Q

Pumps shall be installed in accordance with:

A

The manufactures installation instructions

58
Q

Compressors shall be installed in accordance with:

A

The manufactures installation instructions

59
Q

We’re cylinders are installed permanently on roof of buildings. The building shall be of.

A

Fire resistant construction

60
Q

Cylinders shall be located in areas where there is free air circulation at least ______ from building openings such as windows and doors

A

10 feet

61
Q

Cylinders shall be located in areas where there is free air circulation, and at least 20 feet from

A

Air intakes or air conditioning systems

62
Q

Cylinders shall not be located on roofs that are entirely enclosed by parapets more than

A

18 inches high

63
Q

We’re installed outside of buildings, the hose length shall be permitted to exceed ______ but shall be a short as practical

A

10 feet

64
Q

Grounding and bonding shall not ______ on LP – gas systems

A

be required

65
Q

Where a vehicle fuel dispenser is installed under a Weather, shelter or canopy, the area shall be ventilated and shall not be enclosed for more than

A

50% of its perimeter

66
Q

Fire protection shall be provided for installations with an aggregate water capacity of more than _____________ and for ASME containers on roof

A

4000 gallons

67
Q

LP gas fires shall not be extinguished until the service of the building gas

A

Has been shut off

68
Q

Flammable liquids include those having a flash point below ______ and having a vapor pressure not exceeding ______

A

100 degrees F

40 PSIA

69
Q

Class II combustible liquids include those having a flash point at or above ______ and below ______

A

100 degrees F

140 degrees F

70
Q

Steel supports shall be protected against fire exposure with a material that has a fire resistance rating of at least

A

2 hours

NFPA 58 (11 decks)

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