Smog Check Inspector Exam CA 2026/2027 –
California Certification Exam Preparation with
Verified Questions and Answers Complete Study
Guide
1. When positioning a vehicle on a two-post lift, the first
safety step is:
A) Raise the vehicle fully before checking pads
B) Verify lift pad contact at manufacturer points
C) Leave transmission in gear
D) Remove the key before lifting
✅ Answer: B) Verify lift pad contact at manufacturer
points
Rationale: Lift points are structurally reinforced; wrong
contact can crush floor pans or cause vehicle to fall.
2. Before starting a smog inspection, you must:
A) Warm the engine to operating temperature
B) Drain the engine oil
1
,C) Remove the air filter
D) Disconnect the battery
✅ Answer: A) Warm the engine to operating
temperature
Rationale: Emissions tests require the engine to be at
normal operating temperature to ensure catalytic
converter function and accurate readings.
3. What is the minimum required safety equipment in a
smog test station?
A) Fire extinguisher (10-B:C) and eye wash station
B) Hydraulic jack
C) Portable heater
D) Tire inflator
✅ Answer: A) Fire extinguisher (10-B:C) and eye wash
station
Rationale: BAR requires a fire extinguisher rated for
flammable liquids/electrical and an eyewash station for
chemical exposure.
2
,4. The BAR-OIS system requires what action if a vehicle
fails the test?
A) Issue a passing certificate anyway
B) Print a Vehicle Inspection Report (VIR) with failure
reasons
C) Destroy the test record
D) Retest immediately for free
✅ Answer: B) Print a Vehicle Inspection Report (VIR) with
failure reasons
Rationale: BAR-OIS generates a VIR detailing why the
vehicle failed; the customer needs this for repairs.
5. While testing, the vehicle begins smoking heavily from
underhood. Your first action:
A) Complete the test
B) Abort the test and shut off engine
C) Open the hood to see the problem
D) Call the BAR hotline
3
, ✅ Answer: B) Abort the test and shut off engine
Rationale: Safety first—heavy smoke indicates fire risk.
Abort immediately, shut off engine, and evacuate if
needed.
6. The dynamometer roller speed is controlled by:
A) The vehicle's brakes
B) The test computer matching target speed
C) The inspector's foot pedal
D) The vehicle's transmission in neutral
✅ Answer: B) The test computer matching target speed
Rationale: The dynamometer applies variable load to
maintain target speed (e.g., 50 mph ±1 mph).
7. A customer refuses to let you inspect under the vehicle.
You should:
A) Skip the undercar inspection
B) Refuse to perform the test
C) Perform only OBD test
D) Call the police
4
California Certification Exam Preparation with
Verified Questions and Answers Complete Study
Guide
1. When positioning a vehicle on a two-post lift, the first
safety step is:
A) Raise the vehicle fully before checking pads
B) Verify lift pad contact at manufacturer points
C) Leave transmission in gear
D) Remove the key before lifting
✅ Answer: B) Verify lift pad contact at manufacturer
points
Rationale: Lift points are structurally reinforced; wrong
contact can crush floor pans or cause vehicle to fall.
2. Before starting a smog inspection, you must:
A) Warm the engine to operating temperature
B) Drain the engine oil
1
,C) Remove the air filter
D) Disconnect the battery
✅ Answer: A) Warm the engine to operating
temperature
Rationale: Emissions tests require the engine to be at
normal operating temperature to ensure catalytic
converter function and accurate readings.
3. What is the minimum required safety equipment in a
smog test station?
A) Fire extinguisher (10-B:C) and eye wash station
B) Hydraulic jack
C) Portable heater
D) Tire inflator
✅ Answer: A) Fire extinguisher (10-B:C) and eye wash
station
Rationale: BAR requires a fire extinguisher rated for
flammable liquids/electrical and an eyewash station for
chemical exposure.
2
,4. The BAR-OIS system requires what action if a vehicle
fails the test?
A) Issue a passing certificate anyway
B) Print a Vehicle Inspection Report (VIR) with failure
reasons
C) Destroy the test record
D) Retest immediately for free
✅ Answer: B) Print a Vehicle Inspection Report (VIR) with
failure reasons
Rationale: BAR-OIS generates a VIR detailing why the
vehicle failed; the customer needs this for repairs.
5. While testing, the vehicle begins smoking heavily from
underhood. Your first action:
A) Complete the test
B) Abort the test and shut off engine
C) Open the hood to see the problem
D) Call the BAR hotline
3
, ✅ Answer: B) Abort the test and shut off engine
Rationale: Safety first—heavy smoke indicates fire risk.
Abort immediately, shut off engine, and evacuate if
needed.
6. The dynamometer roller speed is controlled by:
A) The vehicle's brakes
B) The test computer matching target speed
C) The inspector's foot pedal
D) The vehicle's transmission in neutral
✅ Answer: B) The test computer matching target speed
Rationale: The dynamometer applies variable load to
maintain target speed (e.g., 50 mph ±1 mph).
7. A customer refuses to let you inspect under the vehicle.
You should:
A) Skip the undercar inspection
B) Refuse to perform the test
C) Perform only OBD test
D) Call the police
4
