2025 Latest Update Smog Check Inspector Exam CA
Practice with 300+ Recently Tested Verified Questions
and Answers | Smog Check Inspector CA Practice Exam
This Smog Check Inspector Exam Prep includes all verified 2025/2026 questions with
accurate, real-exam answers. Designed to match California BAR testing standards, it
covers visual, functional, OBD, diesel, EVAP, and referee requirements in detail. Perfect
for guaranteed exam success with clear, reliable, and up-to-date solutions.
If a vehicle fails smog and gets the needed repairs done, which station
should they refer back to?
CORRECT ANSWER ✓ ✓ Any STAR certified station
Directed vehicles can only receive a smog check certification from which
stations?
CORRECT ANSWER ✓ ✓ STAR Test Only and STAR Test and Repair stations
A certificate of compliance is required whenever a vehicle changes
ownership except when the vehicle is being transferred between whom?
CORRECT ANSWER ✓ ✓ Family (parent, child, spouse), companies, lessor
and lessee
,What are three main reasons to reject a vehicle from performing an initial
inspection?
CORRECT ANSWER ✓ ✓ Excessive fluid leaks, engine overheating, unsafe
drive axle tire or wheel (dyno test only)
While performing a visual inspection, an inspector observes there is no EGR
amplifier even though one is shown on the under-hood emission label. The
EGR valve is connected to the ported vacuum. What EIS analyzer entry
should be made?
CORRECT ANSWER ✓ ✓ Missing
Which of the following actions should be taken if a vehicle’s timing reads 5
degrees BTDC and the specification of the vehicle is 8 degrees?
CORRECT ANSWER ✓ ✓ Enter "PASS" into the analyzer for ignition timing
and 5 degrees BTDC for the timing reading
Which of the following is a primary purpose of the Smog Check Referee?
CORRECT ANSWER ✓ ✓ Perform inspection dispute resolutions
What action should be taken when a 23-month-old car with 22,000 miles
on its odometer fails an emissions inspection because of a failed emission
component?
CORRECT ANSWER ✓ ✓ Refer the customer to go to a dealer for the repair
,What is the difference between a three-wire oxygen sensor and a single-
wire oxygen sensor?
CORRECT ANSWER ✓ ✓ A three-wire allows earlier closed-loop operation
Are smog check inspections and/or repairs allowed to be sublet?
CORRECT ANSWER ✓ ✓ No, but there are a few exceptions
Is sales tax included on the estimate?
CORRECT ANSWER ✓ ✓ No, only on the invoice
Functional tests are procedures that consist of what?
CORRECT ANSWER ✓ ✓ EGR systems, ignition timing, MIL, OBD, LPFET, fuel
cap (following manufacturer procedures, smog check manual, and as
prompted by the inspection system)
What is an under-hood emission control label? Indicates the vehicle’s what?
CORRECT ANSWER ✓ ✓ Certification type (California or Federal)
Does a missing or illegible emission control label constitute an inspection
failure?
CORRECT ANSWER ✓ ✓ No, you can proceed with the inspection provided
that the required emission controls can be determined using other sources.
For gasoline-powered vehicles with stop-start systems, the inspector shall
visually inspect for liquid fuel leaks and in what position?
CORRECT ANSWER ✓ ✓ Liquid fuel leaks and Key On Engine Off (KOEO)
, An SPCNS vehicle may be built from what three things?
CORRECT ANSWER ✓ ✓ Kit cars, new or used parts, dismantled vehicles
that are reconstructed but do not resemble the original make
Vehicles 1995 and older are tested on which machine?
CORRECT ANSWER ✓ ✓ OBD I
Vehicles 1996 and newer are tested on which machine?
CORRECT ANSWER ✓ ✓ OBD II
Gasoline vehicles 1976 to 1999 are tested on which machine?
CORRECT ANSWER ✓ ✓ BAR 97
The Smog Check Program divides the state into three areas determined by
air quality. What are they?
CORRECT ANSWER ✓ ✓ Enhanced, Basic, and Change of Ownership
Biennial smog checks are required in which program area?
CORRECT ANSWER ✓ ✓ Enhanced areas (these areas do not meet federal
or state air quality standards for ozone and carbon monoxide)
If the VIN on the vehicle doesn't match the registration documents, what
should the inspector do?
CORRECT ANSWER ✓ ✓ Use the VIN on the vehicle and inform the
customer that it doesn't match the registration document. DMV will not
accept the test results.
Practice with 300+ Recently Tested Verified Questions
and Answers | Smog Check Inspector CA Practice Exam
This Smog Check Inspector Exam Prep includes all verified 2025/2026 questions with
accurate, real-exam answers. Designed to match California BAR testing standards, it
covers visual, functional, OBD, diesel, EVAP, and referee requirements in detail. Perfect
for guaranteed exam success with clear, reliable, and up-to-date solutions.
If a vehicle fails smog and gets the needed repairs done, which station
should they refer back to?
CORRECT ANSWER ✓ ✓ Any STAR certified station
Directed vehicles can only receive a smog check certification from which
stations?
CORRECT ANSWER ✓ ✓ STAR Test Only and STAR Test and Repair stations
A certificate of compliance is required whenever a vehicle changes
ownership except when the vehicle is being transferred between whom?
CORRECT ANSWER ✓ ✓ Family (parent, child, spouse), companies, lessor
and lessee
,What are three main reasons to reject a vehicle from performing an initial
inspection?
CORRECT ANSWER ✓ ✓ Excessive fluid leaks, engine overheating, unsafe
drive axle tire or wheel (dyno test only)
While performing a visual inspection, an inspector observes there is no EGR
amplifier even though one is shown on the under-hood emission label. The
EGR valve is connected to the ported vacuum. What EIS analyzer entry
should be made?
CORRECT ANSWER ✓ ✓ Missing
Which of the following actions should be taken if a vehicle’s timing reads 5
degrees BTDC and the specification of the vehicle is 8 degrees?
CORRECT ANSWER ✓ ✓ Enter "PASS" into the analyzer for ignition timing
and 5 degrees BTDC for the timing reading
Which of the following is a primary purpose of the Smog Check Referee?
CORRECT ANSWER ✓ ✓ Perform inspection dispute resolutions
What action should be taken when a 23-month-old car with 22,000 miles
on its odometer fails an emissions inspection because of a failed emission
component?
CORRECT ANSWER ✓ ✓ Refer the customer to go to a dealer for the repair
,What is the difference between a three-wire oxygen sensor and a single-
wire oxygen sensor?
CORRECT ANSWER ✓ ✓ A three-wire allows earlier closed-loop operation
Are smog check inspections and/or repairs allowed to be sublet?
CORRECT ANSWER ✓ ✓ No, but there are a few exceptions
Is sales tax included on the estimate?
CORRECT ANSWER ✓ ✓ No, only on the invoice
Functional tests are procedures that consist of what?
CORRECT ANSWER ✓ ✓ EGR systems, ignition timing, MIL, OBD, LPFET, fuel
cap (following manufacturer procedures, smog check manual, and as
prompted by the inspection system)
What is an under-hood emission control label? Indicates the vehicle’s what?
CORRECT ANSWER ✓ ✓ Certification type (California or Federal)
Does a missing or illegible emission control label constitute an inspection
failure?
CORRECT ANSWER ✓ ✓ No, you can proceed with the inspection provided
that the required emission controls can be determined using other sources.
For gasoline-powered vehicles with stop-start systems, the inspector shall
visually inspect for liquid fuel leaks and in what position?
CORRECT ANSWER ✓ ✓ Liquid fuel leaks and Key On Engine Off (KOEO)
, An SPCNS vehicle may be built from what three things?
CORRECT ANSWER ✓ ✓ Kit cars, new or used parts, dismantled vehicles
that are reconstructed but do not resemble the original make
Vehicles 1995 and older are tested on which machine?
CORRECT ANSWER ✓ ✓ OBD I
Vehicles 1996 and newer are tested on which machine?
CORRECT ANSWER ✓ ✓ OBD II
Gasoline vehicles 1976 to 1999 are tested on which machine?
CORRECT ANSWER ✓ ✓ BAR 97
The Smog Check Program divides the state into three areas determined by
air quality. What are they?
CORRECT ANSWER ✓ ✓ Enhanced, Basic, and Change of Ownership
Biennial smog checks are required in which program area?
CORRECT ANSWER ✓ ✓ Enhanced areas (these areas do not meet federal
or state air quality standards for ozone and carbon monoxide)
If the VIN on the vehicle doesn't match the registration documents, what
should the inspector do?
CORRECT ANSWER ✓ ✓ Use the VIN on the vehicle and inform the
customer that it doesn't match the registration document. DMV will not
accept the test results.
