NGA 70 - AOCs & Properties of Natural Gas UPDATED ACTUAL Questions And
Correct Answers
Terms in this set (45)
Specific Gravity Natural Gas 0.6
Specific Gravity Carbon Monoxide 0.98
Specific Gravity Air 1.0
Specific Gravity Propane 3.5
Specific Gravity Kerosene/Fuel Oil 4.5
Natural Gas can be transported in either Gas or Liquid
Gases with a specific gravity greater than 1 tend to hug the ground
Headaches, Dizziness, Loss of consciousness are exposure to high levels of natural gas
symptoms of
Odorant added to natural gas before distribution to help Mercaptan
aid in detecting gas leaks
Odor intensity can decrease by passing through sand, clay, or loam
Odor intensity can decrease by presence of household chemicals, kitchen or bathroom cleaners, some air freshners
Odor Fade is caused by what in Steel Pipes internal rust deposits
Odor Fade occurs in Plastic Pipes absorbed into or absorbed onto the surface of the pipe until the pipe comes
saturated
Two Specific Reasons to know gravity of fuel gases (1) It can affect combustion properties at burner tip
Two Specific Reasons to know gravity of fuel gases (2) Can influence safety if the gas is released into the atmosphere
The major component of fuel gas hydrocarbons
The major component of natural gas methane
Natural gas is generally composed of what percentage of 90%-95%
methane?
When heated, natural gas will expand
Correct Answers
Terms in this set (45)
Specific Gravity Natural Gas 0.6
Specific Gravity Carbon Monoxide 0.98
Specific Gravity Air 1.0
Specific Gravity Propane 3.5
Specific Gravity Kerosene/Fuel Oil 4.5
Natural Gas can be transported in either Gas or Liquid
Gases with a specific gravity greater than 1 tend to hug the ground
Headaches, Dizziness, Loss of consciousness are exposure to high levels of natural gas
symptoms of
Odorant added to natural gas before distribution to help Mercaptan
aid in detecting gas leaks
Odor intensity can decrease by passing through sand, clay, or loam
Odor intensity can decrease by presence of household chemicals, kitchen or bathroom cleaners, some air freshners
Odor Fade is caused by what in Steel Pipes internal rust deposits
Odor Fade occurs in Plastic Pipes absorbed into or absorbed onto the surface of the pipe until the pipe comes
saturated
Two Specific Reasons to know gravity of fuel gases (1) It can affect combustion properties at burner tip
Two Specific Reasons to know gravity of fuel gases (2) Can influence safety if the gas is released into the atmosphere
The major component of fuel gas hydrocarbons
The major component of natural gas methane
Natural gas is generally composed of what percentage of 90%-95%
methane?
When heated, natural gas will expand
