Smog Check Inspector Level 1 Exam (Latest Update 2026 / 2027) | Questions & Answers | 100 % Correct | Grade A

Smog Check Inspector Level 1 Exam
(Latest Update ) |
Questions & Answers | 100 %
Correct | Grade A


Question:
What readings for timing would pass the vehicle if the under hood label states
that the timing spec is 10 degrees BTDC at 750 RPM?
Answer:
3+/- degrees and between 100 +/- RPM




Question:
An AIR system (pump style) has the ability to change where the air from the
pump is delivered to. the device for routing the air is called a?
Answer:
diverter valve

,Question:
What is the proper sequence for the four stroke of the internal combustion
engine
Answer:
Intake, Compression, Power and Exhaust




Question:
Of the four strokes of an internal combustion engine the ignition typically
fires during the Power stroke. True or False
Answer:
False, compression stroke




Question:
During the Visual portion of a smog check inspection the smog check
inspector see an aftermarket catalytic converter installed. How should he
proceed
Answer:
research the new catalytic converter and proceed accordingly

, Question:
What emissions does a TWC reduce
Answer:
H/C, CO, and NOx




Question:
what portions of a smog check inspection are performed with the engine
running on a hybrid vehicle
Answer:
liquid fuel leak check




Question:
what emissions would a vehicle most likely fail for due to a lack of flow in the
cooling system (radiator)?
Answer:
NOx