Virginia Vehicle Emissions Inspector
Exam Questions with Correct Answers
(Verified Answers) 2026 Q&A | Instant
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1. What is the primary purpose of a vehicle emissions inspection program?
A. Increase vehicle speed
B. Reduce air pollution
C. Improve tire wear
D. Increase fuel prices
Answer: B
2. What does OBD stand for?
A. On Board Diagnostics
B. Oil Burning Device
C. Output Brake Detector
D. Operating Battery Device
Answer: A
3. What does an OBD system monitor?
A. Tire pressure only
B. Engine and emissions systems
C. Vehicle paint condition
D. Transmission fluid color
Answer: B
4. A “Check Engine Light” is also called a:
A. Headlight indicator
B. Malfunction Indicator Lamp (MIL)
C. Battery warning light
D. Brake warning light
Answer: B
,5. A steady MIL usually indicates:
A. No issue
B. Emission-related fault
C. Flat tire
D. Low fuel only
Answer: B
6. A flashing MIL usually indicates:
A. Minor issue
B. Severe engine misfire
C. Low windshield fluid
D. Normal operation
Answer: B
7. What does a readiness monitor indicate?
A. Tire condition
B. System self-test completion
C. Fuel level
D. Oil change status
Answer: B
8. How many OBD monitors must be ready for most vehicles?
A. All monitors
B. None
C. A required number set by regulations
D. Only fuel monitor
Answer: C
9. A “not ready” monitor means:
A. Test completed successfully
B. Self-test not completed
C. Engine is broken
D. Battery is dead
Answer: B
10.What tool is used to read OBD data?
A. Paint meter
B. Scan tool
, C. Tire gauge
D. Hydrometer
Answer: B
11.OBD-II became mandatory in the U.S. in:
A. 1975
B. 1996
C. 2005
D. 2010
Answer: B
12.OBD-II connector is typically located under:
A. Hood
B. Dashboard
C. Trunk
D. Wheel well
Answer: B
13.What does a DTC stand for?
A. Diagnostic Trouble Code
B. Direct Torque Control
C. Diesel Timing Control
D. Drive Test Check
Answer: A
14.A P-code relates to:
A. Paint system
B. Powertrain
C. Parking brake
D. Passenger safety
Answer: B
15.Which code indicates manufacturer-specific issues?
A. P0
B. P1
C. P2
D. All of the above depending on code range
Answer: D
Exam Questions with Correct Answers
(Verified Answers) 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of a vehicle emissions inspection program?
A. Increase vehicle speed
B. Reduce air pollution
C. Improve tire wear
D. Increase fuel prices
Answer: B
2. What does OBD stand for?
A. On Board Diagnostics
B. Oil Burning Device
C. Output Brake Detector
D. Operating Battery Device
Answer: A
3. What does an OBD system monitor?
A. Tire pressure only
B. Engine and emissions systems
C. Vehicle paint condition
D. Transmission fluid color
Answer: B
4. A “Check Engine Light” is also called a:
A. Headlight indicator
B. Malfunction Indicator Lamp (MIL)
C. Battery warning light
D. Brake warning light
Answer: B
,5. A steady MIL usually indicates:
A. No issue
B. Emission-related fault
C. Flat tire
D. Low fuel only
Answer: B
6. A flashing MIL usually indicates:
A. Minor issue
B. Severe engine misfire
C. Low windshield fluid
D. Normal operation
Answer: B
7. What does a readiness monitor indicate?
A. Tire condition
B. System self-test completion
C. Fuel level
D. Oil change status
Answer: B
8. How many OBD monitors must be ready for most vehicles?
A. All monitors
B. None
C. A required number set by regulations
D. Only fuel monitor
Answer: C
9. A “not ready” monitor means:
A. Test completed successfully
B. Self-test not completed
C. Engine is broken
D. Battery is dead
Answer: B
10.What tool is used to read OBD data?
A. Paint meter
B. Scan tool
, C. Tire gauge
D. Hydrometer
Answer: B
11.OBD-II became mandatory in the U.S. in:
A. 1975
B. 1996
C. 2005
D. 2010
Answer: B
12.OBD-II connector is typically located under:
A. Hood
B. Dashboard
C. Trunk
D. Wheel well
Answer: B
13.What does a DTC stand for?
A. Diagnostic Trouble Code
B. Direct Torque Control
C. Diesel Timing Control
D. Drive Test Check
Answer: A
14.A P-code relates to:
A. Paint system
B. Powertrain
C. Parking brake
D. Passenger safety
Answer: B
15.Which code indicates manufacturer-specific issues?
A. P0
B. P1
C. P2
D. All of the above depending on code range
Answer: D
