PA EMISSIONS INSPECTOR CERTIFICATION | TOP
SCORES MADE SIMPLE | TRUSTED TEST
SOLUTIONS!
ACE EVERY QUIZ | CONFIDENCE BACKED BY
ACCURACY!
Station Hotline Answer: (888) 265-5909
Customer Hotline Answer: (800) 265-0921
Sticker Department Answer: (717) 705-2182
An emissions inspector must meet what requirements? Answer: Be at least 18 years of
age
Have a valid driver's license
To deliver emissions waivers you must become a(n)... Answer: emissions Certified
Repair Technician (CRT)
To become a CRT you must... Answer: Have a valid driver's license
What is the Northern-Emission Inspectors Certification program? Answer: Limited to
performing the visual antitampering check and gas-cap test.
Upon successful completion of the N-EIC program you will receive.. Answer: An
emissions inspection ID card from PennDOT that allows you to perform inspections on
vehicles registered in the Northern Region counties only.
Air pollution Answer: Contamination of the atmosphere by gaseous, liquids or solid
wastes or byproducts. Emitted from natural or human-made sources.
Most of the world's air pollution problems are... Answer: Human-made
Major Pollutants Answer: Hydrocarbons (HCs), carbon monoxide (CO), and nitrogen
oxides (NOx). (released from fossil fuels like gasoline and diesel)
Hydrocarbons Answer: Unburned fuel of any class of organic compounds composed of
carbon and hydrogen
Carbon Monoxide Answer: Colorless, odorless, and poisonous gas. Created when an
engine burns HV in the presence of O2.
Oxygen Answer: Too much or too little can cause improper combustion and result in
pollution
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Ozone (Smog) Answer: Not emitted directly into the air, it is created at ground level by
a chemical reaction between NOx and HC in the presence of sunlight .
Nitrogen Oxides (NOx) Answer: Excessive amounts can be caused by a lean air-fuel
mixture, a defective exhaust gas recirculation valve, higher than normal engine
temperatures, vacuum leaks, and advanced ignition timing.
Five Gas Theory Answer: The relationship between HC, CO, O2, CO2, and NOx are
the same in all gasoline engines.
Stoichiometric Ratio Answer: For all engines, a mixture of approx. 14.7 parts of air to
every one-part of fuel produces the most efficient use of fuel and the lowest emissions.
Why would hydrocarbon be higher than the stoichiometric ratio? Answer: The mixture is
very rich or very lean. Normal combustion is 15:1 air/fuel ratio.
What happens when there is not enough O2 in an engine? Answer: It runs rich,
meaning combustion forms more CO and less CO2.
What does it mean if Hc is high and CO is extremely low? Answer: The engine is either
very lean or there's a misfire.
What does it mean if CO is very high? Answer: The engine is definitely rich, getting too
much fuel or not enough air.
Why is oxygen the best lean indicator? Answer: The levels change during lean
mixtures.
Why is oxygen (O2) not a reliable rich indicator? Answer: It is low whenever the mixture
is rich. Rich mixtures burn all available O2.
When did PA implement itd first emissions I/M program? Answer: 1984
In 1990 Congress set the requirements for an enhanced program in the Clean Air Act
Amendments which aimed to do what? Answer: Lower harmful emissions and increase
accountability at the state level.
What was the 1992 EPA mandate in accordance with the Clean Air Act? Answer: PA
required a vehicle emissions I/M program be implemented to increase air quality and
decrease pollution.
In 1997 PennDOT implemented an enhanced decentralized vehicle emissions
inspection program that featured what? Answer: Tailpipe testing of vehicle exhaust
emissions
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
SCORES MADE SIMPLE | TRUSTED TEST
SOLUTIONS!
ACE EVERY QUIZ | CONFIDENCE BACKED BY
ACCURACY!
Station Hotline Answer: (888) 265-5909
Customer Hotline Answer: (800) 265-0921
Sticker Department Answer: (717) 705-2182
An emissions inspector must meet what requirements? Answer: Be at least 18 years of
age
Have a valid driver's license
To deliver emissions waivers you must become a(n)... Answer: emissions Certified
Repair Technician (CRT)
To become a CRT you must... Answer: Have a valid driver's license
What is the Northern-Emission Inspectors Certification program? Answer: Limited to
performing the visual antitampering check and gas-cap test.
Upon successful completion of the N-EIC program you will receive.. Answer: An
emissions inspection ID card from PennDOT that allows you to perform inspections on
vehicles registered in the Northern Region counties only.
Air pollution Answer: Contamination of the atmosphere by gaseous, liquids or solid
wastes or byproducts. Emitted from natural or human-made sources.
Most of the world's air pollution problems are... Answer: Human-made
Major Pollutants Answer: Hydrocarbons (HCs), carbon monoxide (CO), and nitrogen
oxides (NOx). (released from fossil fuels like gasoline and diesel)
Hydrocarbons Answer: Unburned fuel of any class of organic compounds composed of
carbon and hydrogen
Carbon Monoxide Answer: Colorless, odorless, and poisonous gas. Created when an
engine burns HV in the presence of O2.
Oxygen Answer: Too much or too little can cause improper combustion and result in
pollution
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Ozone (Smog) Answer: Not emitted directly into the air, it is created at ground level by
a chemical reaction between NOx and HC in the presence of sunlight .
Nitrogen Oxides (NOx) Answer: Excessive amounts can be caused by a lean air-fuel
mixture, a defective exhaust gas recirculation valve, higher than normal engine
temperatures, vacuum leaks, and advanced ignition timing.
Five Gas Theory Answer: The relationship between HC, CO, O2, CO2, and NOx are
the same in all gasoline engines.
Stoichiometric Ratio Answer: For all engines, a mixture of approx. 14.7 parts of air to
every one-part of fuel produces the most efficient use of fuel and the lowest emissions.
Why would hydrocarbon be higher than the stoichiometric ratio? Answer: The mixture is
very rich or very lean. Normal combustion is 15:1 air/fuel ratio.
What happens when there is not enough O2 in an engine? Answer: It runs rich,
meaning combustion forms more CO and less CO2.
What does it mean if Hc is high and CO is extremely low? Answer: The engine is either
very lean or there's a misfire.
What does it mean if CO is very high? Answer: The engine is definitely rich, getting too
much fuel or not enough air.
Why is oxygen the best lean indicator? Answer: The levels change during lean
mixtures.
Why is oxygen (O2) not a reliable rich indicator? Answer: It is low whenever the mixture
is rich. Rich mixtures burn all available O2.
When did PA implement itd first emissions I/M program? Answer: 1984
In 1990 Congress set the requirements for an enhanced program in the Clean Air Act
Amendments which aimed to do what? Answer: Lower harmful emissions and increase
accountability at the state level.
What was the 1992 EPA mandate in accordance with the Clean Air Act? Answer: PA
required a vehicle emissions I/M program be implemented to increase air quality and
decrease pollution.
In 1997 PennDOT implemented an enhanced decentralized vehicle emissions
inspection program that featured what? Answer: Tailpipe testing of vehicle exhaust
emissions
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
