NGA 70 AOCS & PROPERTIES OF NATURAL GAS EXAM QUESTIONS
AND ANSWERS
Specific Gravity Natural Gas - CORRECT ANSWER✅✅0.6
Specific Gravity Carbon Monoxide - CORRECT ANSWER✅✅0.98
Specific Gravity Air - CORRECT ANSWER✅✅1.0
Specific Gravity Propane - CORRECT ANSWER✅✅3.5
Specific Gravity Kerosene/Fuel Oil - CORRECT ANSWER✅✅4.5
Natural Gas can be transported in either - CORRECT ANSWER✅✅Gas or Liquid
Gases with a specific gravity greater than 1 tend to - CORRECT ANSWER✅✅hug the ground
Headaches, Dizziness, Loss of consciousness are symptoms of - CORRECT ANSWER✅✅exposure to high
levels of natural gas
Odorant added to natural gas before distribution to help aid in detecting gas leaks - CORRECT
ANSWER✅✅Mercaptan
Odor intensity can decrease by passing through - CORRECT ANSWER✅✅sand, clay, or loam
Odor intensity can decrease by presence of - CORRECT ANSWER✅✅household chemicals, kitchen or
bathroom cleaners, some air freshners
Odor Fade is caused by what in Steel Pipes - CORRECT ANSWER✅✅internal rust deposits
AND ANSWERS
Specific Gravity Natural Gas - CORRECT ANSWER✅✅0.6
Specific Gravity Carbon Monoxide - CORRECT ANSWER✅✅0.98
Specific Gravity Air - CORRECT ANSWER✅✅1.0
Specific Gravity Propane - CORRECT ANSWER✅✅3.5
Specific Gravity Kerosene/Fuel Oil - CORRECT ANSWER✅✅4.5
Natural Gas can be transported in either - CORRECT ANSWER✅✅Gas or Liquid
Gases with a specific gravity greater than 1 tend to - CORRECT ANSWER✅✅hug the ground
Headaches, Dizziness, Loss of consciousness are symptoms of - CORRECT ANSWER✅✅exposure to high
levels of natural gas
Odorant added to natural gas before distribution to help aid in detecting gas leaks - CORRECT
ANSWER✅✅Mercaptan
Odor intensity can decrease by passing through - CORRECT ANSWER✅✅sand, clay, or loam
Odor intensity can decrease by presence of - CORRECT ANSWER✅✅household chemicals, kitchen or
bathroom cleaners, some air freshners
Odor Fade is caused by what in Steel Pipes - CORRECT ANSWER✅✅internal rust deposits
