UPDATED Exam Questions and CORECT
Answers
Station Hotline - CORRECT ANSWER (888) 265-5909
Customer Hotline - CORRECT ANSWER (800) 265-0921
Sticker Department - CORRECT ANSWER (717) 705-2182
An emissions inspector must meet what requirements? - CORRECT ANSWER Be at least
18 years of age
Have a valid driver's license
To deliver emissions waivers you must become a(n)... - CORRECT ANSWER emissions
Certified Repair Technician (CRT)
To become a CRT you must... - CORRECT ANSWER Have a valid driver's license
What is the Northern-Emission Inspectors Certification program? - CORRECT
ANSWER Limited to performing the visual antitampering check and gas-cap test.
Upon successful completion of the N-EIC program you will receive.. - CORRECT
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 - CORRECT 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... - CORRECT ANSWER Human-made
Major Pollutants - CORRECT ANSWER Hydrocarbons (HCs), carbon monoxide (CO),
and nitrogen oxides (NOx). (released from fossil fuels like gasoline and diesel)
Hydrocarbons - CORRECT ANSWER Unburned fuel of any class of organic compounds
composed of carbon and hydrogen
Carbon Monoxide - CORRECT ANSWER Colorless, odorless, and poisonous gas.
Created when an engine burns HC in the presence of O2.
Oxygen - CORRECT ANSWER Too much or too little can cause improper combustion
and result in pollution
Ozone (Smog) - CORRECT 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) - CORRECT 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 - CORRECT ANSWER The relationship between HC, CO, O2, CO2,
and NOx are the same in all gasoline engines.
Stoichiometric Ratio - CORRECT 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? - CORRECT
ANSWER The mixture is very rich or very lean. Normal combustion is 15:1 air/fuel ratio.