To Scor A+
1. Specific Gravity Natural Gas 0.6
2. Specific Gravity Carbon Monoxide 0.98
3. Specific Gravity Air 1.0
4. Specific Gravity Propane 3.5
5. Specific Gravity Kerosene/Fuel Oil 4.5
6. Natural Gas can be transported in either Gas or Liquid
7. Gases with a specific gravity greater than 1 tend to hug the ground
8. Headaches, Dizziness, Loss of consciousness
are symptoms of exposure to high levels of
natural gas
9. Odorant added to natural gas before
distribution to help aid in detecting gas Mercaptan
leaks
10. Odor intensity can decrease by passing through sand, clay, or loam
11. Odor intensity can decrease by presence of household chemicals,
kitchen or bathroom
cleaners, some air
freshn- ers
12. Odor Fade is caused by what in Steel Pipes internal rust deposits
13. Odor Fade occurs in Plastic Pipes absorbed into or ab-
sorbed onto the
surface of the pipe
until the pipe comes
1/
9
, NGA 70 - AOCs & Properties of Natural Gas Exam Solved Correctly
To Scor A+
saturated
2/
9