City Gas

Question 1

The Washington gas company provides pilot relighting for gas appliances (true/false)

Answer 1

False

Question 2

Emergencies are classified in 4 situations (what are the four)

Answer 2

Gas escaping outside
Gas burning outside
Gas escaping inside
Gas burning inside

Question 3

Natural gas is heavier or lighter than air?

Answer 3

Lighter

Question 4

The ignition point of natural gas

Answer 4

1100-1200 degrees

Question 5

Natural gas burning outside, do not extinguish the fire (true/false)

Answer 5

True

Question 6

Residential gas meters located outside the building wall have a service main from underground and _____ stopcock just ahead of the meter/regulator

Answer 6

1

Question 7

The stopcock may have a __________ shaped nut

Answer 7

Pentagonal

Question 8

Turn the stopcock crosswise to the gas pipe _______of a turn clockwise or counterclockwise

Answer 8

1/4 turn

Question 9

Turning the stopcock more the 1/4 will allow gas to continue to flow (true/false)

Answer 9

True

Question 10

The fire valve has a raised operating stem that’s inside a ______ inch pipe

Answer 10

2 1/2”

Question 11

The fire valve projects ______inches above grade

Answer 11

12”

Question 12

Remove the cap on the fire valve with a fire plug wrench by turning it __________

Answer 12

Counterclockwise

Question 13

Curb gate valve, turn the hand wheel or ______ inch square operating head __________ until the valve resists

Answer 13

2”

Clockwise

Question 14

How many turns to turn off the curb gate valve?

Answer 14

6-20

Question 15

The curb gate valve shutoff is sometimes used in lieu of a fire valve with written approval from who?

Answer 15

Dc fire marshal

Question 16

Gas valves in streets and alleys can be operated by fire personnel (true/false)

Answer 16

False …..gas company only

Question 17

What color is the “gas off” tag?

Answer 17

Red

Question 18

Who can turn the gas back on?

Answer 18

Gas company only

Question 19

Once gas shutoff is turned off, even for a moment, it must never be turned back on (true/false)

Answer 19

True….. if turned on, unlighted gas would flow back into the areas

Question 20

Gas transmission lines from ______psi to _____ psi

Answer 20

60-300

Question 21

Gas distribution lines from ______psi to ______psi

Answer 21

1/5 psi to 60psi

Question 22

Gas low pressure from ______psi to ______psi

Answer 22

1/5 to 1/4

Question 23

Natural gas fueling station at 1240 12 th st SE has an outlet of the fueling nozzle at ________psi

Answer 23

3000

Question 24

Companies may best accomplish wetting the plastic pipe by using the small line with an 1 1/2” back up (true/false)

Answer 24

True

Question 25

A proven method for grounding a static charge is to keep exposed plastic wet with ______ or _________.

Answer 25

Water spray or dripping wet rags