California Smog Check Inspector Exam – Complete
Practice Test (300 Questions with Answers &
Rationales)
Section 1: Program Fundamentals & Vehicle Classifications (Questions 1-30)
1. What are directed vehicles?
A) Vehicles randomly selected by the DMV for roadside inspection
B) Vehicles that have failed a previous smog check and require a follow-up test
C) Vehicles that the BAR directs a portion of the enhanced area fleet to take to
STAR certified stations for certification
D) Vehicles that are exempt from smog checks due to age
- CORRECT ANSWER ✔✔ - C
Rationale: The BAR (Bureau of Automotive Repair) directs a portion of the vehicle
fleet in enhanced areas to STAR stations for their certification inspection to ensure
higher scrutiny on potential high emitters.
2. A "SPCNS" vehicle may be built from all of the following EXCEPT:
A) Kit cars
B) New or used parts
C) A brand new, unmodified vehicle from a franchise dealer
D) Dismantled vehicles that are reconstructed but do not resemble the original
make
- CORRECT ANSWER ✔✔ - C
Rationale: SPCNS (Specially Constructed) vehicles are built from kits, new/used
parts, or reconstructed vehicles. A new, unmodified vehicle from a dealer is a
standard production vehicle, not a specially constructed one.
3. Biennial smog checks are required in which program area?
A) Basic areas only
B) Change of Ownership areas only
C) Enhanced areas
D) Rural areas with no air quality monitoring
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, - CORRECT ANSWER ✔✔ - C
Rationale: Enhanced areas are those that do not meet federal or state air quality
standards for ozone and carbon monoxide, therefore requiring more frequent
biennial (every two years) smog checks.
4. Which areas are LESS polluted than enhanced areas?
A) Basic areas
B) Gross Polluter areas
C) Directed vehicle areas
D) Referee-only areas
- CORRECT ANSWER ✔✔ - A
Rationale: Basic areas have better air quality than enhanced areas and therefore
have less stringent smog check requirements.
5. A certification of compliance is NOT required for which type of vehicles?
A) All 1976 and newer vehicles
B) Diesel vehicles over 14,000 lbs
C) Government fleet vehicles
D) Hybrid vehicles
- CORRECT ANSWER ✔✔ - C
Rationale: Government fleet vehicles are exempt from the requirement for a
certificate of compliance, although they may still require testing depending on
specific rules.
6. A certificate of compliance is required whenever a vehicle changes ownership
EXCEPT when the vehicle is being transferred between:
A) A private party and a dealership
B) Family members (parent, child, spouse), companies, lessor and lessee
C) Two residents of different counties
D) An individual and a business partner
- CORRECT ANSWER ✔✔ - B
Rationale: Transfers between immediate family members, between companies, or
between lessor/lessee are exempt from the change-of-ownership smog
certification requirement.
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,7. Who qualifies for a waiver?
A) Low-income vehicle owners only
B) Military personnel
C) First-time vehicle buyers
D) Owners of vehicles older than 25 years
- CORRECT ANSWER ✔✔ - B
Rationale: Military personnel are explicitly noted as qualifying for a waiver,
typically related to being out of state during the testing period.
8. What is the station license duration?
A) 6 months
B) 1 year
C) 2 years
D) 5 years
- CORRECT ANSWER ✔✔ - B
Rationale: Smog check station licenses are valid for one year and must be renewed
annually.
9. The smog check sign shall be how many inches wide and how many inches
tall?
A) 18 wide x 24 height
B) 24 wide x 30 height
C) 30 wide x 36 height
D) 12 wide x 18 height
- CORRECT ANSWER ✔✔ - B
Rationale: Regulations specify the smog check sign dimensions as 24 inches wide
by 30 inches tall.
10. What does the acronym DAD stand for?
A) Digital Auto Diagnoser
B) Data Acquisition Device
C) Diagnostic Assist Device
D) Direct Air Display
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, - CORRECT ANSWER ✔✔ - B
Rationale: DAD stands for Data Acquisition Device, which is part of the smog check
inspection system.
11. Smog check program divides the state into 3 areas determined by air quality.
What are they?
A) Urban, Suburban, Rural
B) North, South, Central
C) Enhanced, Basic, and Change of Ownership
D) High Pollution, Medium Pollution, Low Pollution
- CORRECT ANSWER ✔✔ - C
Rationale: The three program areas are Enhanced (worst air quality), Basic (better
air quality), and Change of Ownership (specific to vehicle sales).
12. Change of ownership area 1976 to 1999 model year vehicles are subject to
what kind of emissions test?
A) ASM test only
B) OBD test only
C) 2 speed idle test
D) BAR-97 loaded mode test
- CORRECT ANSWER ✔✔ - C
*Rationale: Change of ownership area vehicles from 1976-1999 receive the two-
speed idle tailpipe test.*
13. If a vehicle is registered in the enhanced area but it is garaged in a basic
area, what inspection must it undergo?
A) Basic area inspection
B) Enhanced area inspection
C) No inspection required
D) Referee inspection only
- CORRECT ANSWER ✔✔ - B
Rationale: The inspection requirement follows the registration area, not the
garaging location.
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Practice Test (300 Questions with Answers &
Rationales)
Section 1: Program Fundamentals & Vehicle Classifications (Questions 1-30)
1. What are directed vehicles?
A) Vehicles randomly selected by the DMV for roadside inspection
B) Vehicles that have failed a previous smog check and require a follow-up test
C) Vehicles that the BAR directs a portion of the enhanced area fleet to take to
STAR certified stations for certification
D) Vehicles that are exempt from smog checks due to age
- CORRECT ANSWER ✔✔ - C
Rationale: The BAR (Bureau of Automotive Repair) directs a portion of the vehicle
fleet in enhanced areas to STAR stations for their certification inspection to ensure
higher scrutiny on potential high emitters.
2. A "SPCNS" vehicle may be built from all of the following EXCEPT:
A) Kit cars
B) New or used parts
C) A brand new, unmodified vehicle from a franchise dealer
D) Dismantled vehicles that are reconstructed but do not resemble the original
make
- CORRECT ANSWER ✔✔ - C
Rationale: SPCNS (Specially Constructed) vehicles are built from kits, new/used
parts, or reconstructed vehicles. A new, unmodified vehicle from a dealer is a
standard production vehicle, not a specially constructed one.
3. Biennial smog checks are required in which program area?
A) Basic areas only
B) Change of Ownership areas only
C) Enhanced areas
D) Rural areas with no air quality monitoring
1|Page
, - CORRECT ANSWER ✔✔ - C
Rationale: Enhanced areas are those that do not meet federal or state air quality
standards for ozone and carbon monoxide, therefore requiring more frequent
biennial (every two years) smog checks.
4. Which areas are LESS polluted than enhanced areas?
A) Basic areas
B) Gross Polluter areas
C) Directed vehicle areas
D) Referee-only areas
- CORRECT ANSWER ✔✔ - A
Rationale: Basic areas have better air quality than enhanced areas and therefore
have less stringent smog check requirements.
5. A certification of compliance is NOT required for which type of vehicles?
A) All 1976 and newer vehicles
B) Diesel vehicles over 14,000 lbs
C) Government fleet vehicles
D) Hybrid vehicles
- CORRECT ANSWER ✔✔ - C
Rationale: Government fleet vehicles are exempt from the requirement for a
certificate of compliance, although they may still require testing depending on
specific rules.
6. A certificate of compliance is required whenever a vehicle changes ownership
EXCEPT when the vehicle is being transferred between:
A) A private party and a dealership
B) Family members (parent, child, spouse), companies, lessor and lessee
C) Two residents of different counties
D) An individual and a business partner
- CORRECT ANSWER ✔✔ - B
Rationale: Transfers between immediate family members, between companies, or
between lessor/lessee are exempt from the change-of-ownership smog
certification requirement.
2|Page
,7. Who qualifies for a waiver?
A) Low-income vehicle owners only
B) Military personnel
C) First-time vehicle buyers
D) Owners of vehicles older than 25 years
- CORRECT ANSWER ✔✔ - B
Rationale: Military personnel are explicitly noted as qualifying for a waiver,
typically related to being out of state during the testing period.
8. What is the station license duration?
A) 6 months
B) 1 year
C) 2 years
D) 5 years
- CORRECT ANSWER ✔✔ - B
Rationale: Smog check station licenses are valid for one year and must be renewed
annually.
9. The smog check sign shall be how many inches wide and how many inches
tall?
A) 18 wide x 24 height
B) 24 wide x 30 height
C) 30 wide x 36 height
D) 12 wide x 18 height
- CORRECT ANSWER ✔✔ - B
Rationale: Regulations specify the smog check sign dimensions as 24 inches wide
by 30 inches tall.
10. What does the acronym DAD stand for?
A) Digital Auto Diagnoser
B) Data Acquisition Device
C) Diagnostic Assist Device
D) Direct Air Display
3|Page
, - CORRECT ANSWER ✔✔ - B
Rationale: DAD stands for Data Acquisition Device, which is part of the smog check
inspection system.
11. Smog check program divides the state into 3 areas determined by air quality.
What are they?
A) Urban, Suburban, Rural
B) North, South, Central
C) Enhanced, Basic, and Change of Ownership
D) High Pollution, Medium Pollution, Low Pollution
- CORRECT ANSWER ✔✔ - C
Rationale: The three program areas are Enhanced (worst air quality), Basic (better
air quality), and Change of Ownership (specific to vehicle sales).
12. Change of ownership area 1976 to 1999 model year vehicles are subject to
what kind of emissions test?
A) ASM test only
B) OBD test only
C) 2 speed idle test
D) BAR-97 loaded mode test
- CORRECT ANSWER ✔✔ - C
*Rationale: Change of ownership area vehicles from 1976-1999 receive the two-
speed idle tailpipe test.*
13. If a vehicle is registered in the enhanced area but it is garaged in a basic
area, what inspection must it undergo?
A) Basic area inspection
B) Enhanced area inspection
C) No inspection required
D) Referee inspection only
- CORRECT ANSWER ✔✔ - B
Rationale: The inspection requirement follows the registration area, not the
garaging location.
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