NGA 70 Review Questions And Answers | Verified
2026
1. Aldehydes Toxic substance formed from incomplete combustion
2. Carbon Monoxide CO, byproduct of incomplete combustion
3. Products of
incomplete CO, Aldehydes, Heat
combustion
4. Products of complete CO2, H2O, heat
com- bustion
5. Excess Flow Valve shuts ott flow when a predetermined value is exceeded.
6. Hydrocarbon Combination of hydrogen and carbon found in natural gas, oil and
coal.
7. Natural Gas Ignition
Tem- perature 1100-1200 F
8. Mercaptan a sulfur like odor that is added to natural gas before distribution to
the consumer, to give it a distinct, unpleasant odor
9. Flammability range of
nat- ural gas 5-15%
10. Specific gravity of
natural gas 0.6
11. Specific gravity of air 1.0
12. specific gravity of propane 1.56
13. Components of natural gas Methane, Ethane, Inert gases, propane/heavy hydrocarbons.
14. Ethane Distinguishing feature of pipeline nautural gas
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3
2026
1. Aldehydes Toxic substance formed from incomplete combustion
2. Carbon Monoxide CO, byproduct of incomplete combustion
3. Products of
incomplete CO, Aldehydes, Heat
combustion
4. Products of complete CO2, H2O, heat
com- bustion
5. Excess Flow Valve shuts ott flow when a predetermined value is exceeded.
6. Hydrocarbon Combination of hydrogen and carbon found in natural gas, oil and
coal.
7. Natural Gas Ignition
Tem- perature 1100-1200 F
8. Mercaptan a sulfur like odor that is added to natural gas before distribution to
the consumer, to give it a distinct, unpleasant odor
9. Flammability range of
nat- ural gas 5-15%
10. Specific gravity of
natural gas 0.6
11. Specific gravity of air 1.0
12. specific gravity of propane 1.56
13. Components of natural gas Methane, Ethane, Inert gases, propane/heavy hydrocarbons.
14. Ethane Distinguishing feature of pipeline nautural gas
1/
3
