70, 71 TEST PRACTICE QUESTIONS & ANSWERS

70, 71 TEST PRACTICE QUESTIONS &
ANSWERS
What is the specific gravity of Natural Gas? - ANSWER0.6

What is the specific gravity of carbon monoxide? - ANSWER0.96

What is the specific gravity of air? - ANSWER1.0

Natural gas can be either transported in either _________ or _________ form. -
ANSWERgas or liquid

What are the three things needed for combustion? - ANSWERheat, oxygen, fuel

The chemical the gas company uses to make natural gas detectable to our senses. -
ANSWERMercaptan

List the mark-outs each color represents:

Red-
Orange-
Yellow-
Green-
Blue-
White-
Pink-
Purple- - ANSWERRed- electrical
Orange- communication
Yellow- gas
Green- sewer
Blue- portable water
White- excavation
Pink- survey
Purple- reclaimed water
Natural gas travels in the path of ___________________________. - ANSWERleast
resistance

Most damage done to a pipeline is a result in:

A) Natural disaster
B) Animal/Nature disturbing pipelines
C) Third party Damage such as an excavator or shovel
D) Rocks - ANSWERC) Third party Damage such as an excavator or shovel