TEXAS VEHICLE EMISSIONS INSPECTOR LICENSE EXAM NEWEST 2026/ 2027 TEST
BANK| VEHICLE EMISSIONS LICENSE EXAM PREP WITH COMPLETE 200 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
Question 1
What is the primary purpose of the Texas Vehicle Emissions Inspection Program?
A) To generate revenue for the state
B) To reduce air pollution by identifying vehicles with excessive emissions
C) To inspect vehicle safety features
D) To test vehicle performance
Answer
Answer: B
Rationale
The Texas Vehicle Emissions Inspection Program is designed to reduce air pollution by identifying
vehicles that exceed allowable emission standards. Vehicles that fail must be repaired before they can
be registered. The program is part of the state's effort to comply with federal Clean Air Act
requirements, particularly in nonattainment areas.
Question 2
Which state agency administers the Texas Vehicle Emissions Inspection Program?
A) Texas Department of Transportation (TxDOT)
B) Texas Commission on Environmental Quality (TCEQ)
C) Texas Department of Public Safety (DPS)
D) Texas Department of Motor Vehicles (TxDMV)
Answer
Answer: C
Rationale
The Texas Department of Public Safety (DPS) administers the Vehicle Emissions Inspection Program,
including licensing inspectors and inspection stations. The TCEQ sets emission standards and
,oversees air quality compliance. TxDOT and TxDMV handle other vehicle-related functions, such as
registration and titling.
Question 3
Which of the following counties requires emissions testing for all gasoline-powered vehicles?
A) Harris County
B) Bexar County
C) Travis County
D) All of the above
Answer
Answer: D
Rationale
Harris, Bexar, Travis, Dallas, Tarrant, Collin, Denton, El Paso, Fort Bend, Galveston, Montgomery,
Parker, Rockwall, and Williamson counties require emissions testing for gasoline-powered vehicles.
These counties are designated as nonattainment or near-nonattainment areas for ozone pollution.
Question 4
What is the model year threshold for vehicles requiring emissions testing in Texas?
A) 2 years old
B) 5 years old
C) 10 years old
D) 25 years old
Answer
Answer: D
Rationale
In Texas, vehicles that are 25 years old or older are exempt from emissions testing. This exemption
applies to vehicles manufactured before the 1996 model year in some cases, but the 25-year rolling
exemption applies to all vehicles. Vehicles 2-24 years old are generally subject to testing in applicable
counties.
2
,Question 5
Which of the following vehicles is exempt from Texas emissions testing?
A) A 2020 model year gasoline vehicle
B) A 1995 model year gasoline vehicle
C) A diesel-powered vehicle
D) A vehicle registered in a nonattainment county
Answer
Answer: B
Rationale
Vehicles 25 years old or older are exempt from emissions testing. A 1995 model year vehicle is more
than 25 years old (as of 2026) and is therefore exempt. Diesel vehicles are subject to different testing
requirements. The other options would generally require testing.
Question 6
What is the primary emissions test used for 1996 and newer vehicles in Texas?
A) Two-speed idle test
B) OBD II test
C) ASM test
D) IM240 test
Answer
Answer: B
Rationale
For 1996 and newer vehicles, the OBD II (On-Board Diagnostics) test is the primary emissions test in
Texas. It checks the vehicle's computer for diagnostic trouble codes (DTCs) and readiness monitor
status. The two-speed idle test is used for older vehicles.
Question 7
What does OBD II stand for?
A) On-Board Diagnostics, Second Generation
B) On-Board Diagnostic Inspection
3
, C) On-Board Digital Interface
D) On-Board Data Integration
Answer
Answer: A
Rationale
OBD II stands for On-Board Diagnostics, Second Generation. It is a system in vehicles manufactured
from 1996 onward that monitors emission-related components and systems. The system illuminates
the Malfunction Indicator Lamp (MIL) when a fault is detected.
Question 8
What is the Malfunction Indicator Lamp (MIL)?
A) A light on the dashboard that indicates a problem with the emission control system
B) A light that indicates low tire pressure
C) A light that indicates low fuel
D) A light that indicates a safety issue
Answer
Answer: A
Rationale
The Malfunction Indicator Lamp (MIL), commonly known as the "check engine" light, illuminates when
the OBD II system detects a fault that may increase emissions. If the MIL is commanded on, the
vehicle will fail the emissions test. Inspectors must verify MIL status.
Question 9
What is a Diagnostic Trouble Code (DTC)?
A) A code that indicates a specific fault in the vehicle's emission control system
B) A code that indicates the vehicle's VIN
C) A code that indicates the vehicle's mileage
D) A code that indicates the vehicle's registration status
Answer
4
BANK| VEHICLE EMISSIONS LICENSE EXAM PREP WITH COMPLETE 200 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
Question 1
What is the primary purpose of the Texas Vehicle Emissions Inspection Program?
A) To generate revenue for the state
B) To reduce air pollution by identifying vehicles with excessive emissions
C) To inspect vehicle safety features
D) To test vehicle performance
Answer
Answer: B
Rationale
The Texas Vehicle Emissions Inspection Program is designed to reduce air pollution by identifying
vehicles that exceed allowable emission standards. Vehicles that fail must be repaired before they can
be registered. The program is part of the state's effort to comply with federal Clean Air Act
requirements, particularly in nonattainment areas.
Question 2
Which state agency administers the Texas Vehicle Emissions Inspection Program?
A) Texas Department of Transportation (TxDOT)
B) Texas Commission on Environmental Quality (TCEQ)
C) Texas Department of Public Safety (DPS)
D) Texas Department of Motor Vehicles (TxDMV)
Answer
Answer: C
Rationale
The Texas Department of Public Safety (DPS) administers the Vehicle Emissions Inspection Program,
including licensing inspectors and inspection stations. The TCEQ sets emission standards and
,oversees air quality compliance. TxDOT and TxDMV handle other vehicle-related functions, such as
registration and titling.
Question 3
Which of the following counties requires emissions testing for all gasoline-powered vehicles?
A) Harris County
B) Bexar County
C) Travis County
D) All of the above
Answer
Answer: D
Rationale
Harris, Bexar, Travis, Dallas, Tarrant, Collin, Denton, El Paso, Fort Bend, Galveston, Montgomery,
Parker, Rockwall, and Williamson counties require emissions testing for gasoline-powered vehicles.
These counties are designated as nonattainment or near-nonattainment areas for ozone pollution.
Question 4
What is the model year threshold for vehicles requiring emissions testing in Texas?
A) 2 years old
B) 5 years old
C) 10 years old
D) 25 years old
Answer
Answer: D
Rationale
In Texas, vehicles that are 25 years old or older are exempt from emissions testing. This exemption
applies to vehicles manufactured before the 1996 model year in some cases, but the 25-year rolling
exemption applies to all vehicles. Vehicles 2-24 years old are generally subject to testing in applicable
counties.
2
,Question 5
Which of the following vehicles is exempt from Texas emissions testing?
A) A 2020 model year gasoline vehicle
B) A 1995 model year gasoline vehicle
C) A diesel-powered vehicle
D) A vehicle registered in a nonattainment county
Answer
Answer: B
Rationale
Vehicles 25 years old or older are exempt from emissions testing. A 1995 model year vehicle is more
than 25 years old (as of 2026) and is therefore exempt. Diesel vehicles are subject to different testing
requirements. The other options would generally require testing.
Question 6
What is the primary emissions test used for 1996 and newer vehicles in Texas?
A) Two-speed idle test
B) OBD II test
C) ASM test
D) IM240 test
Answer
Answer: B
Rationale
For 1996 and newer vehicles, the OBD II (On-Board Diagnostics) test is the primary emissions test in
Texas. It checks the vehicle's computer for diagnostic trouble codes (DTCs) and readiness monitor
status. The two-speed idle test is used for older vehicles.
Question 7
What does OBD II stand for?
A) On-Board Diagnostics, Second Generation
B) On-Board Diagnostic Inspection
3
, C) On-Board Digital Interface
D) On-Board Data Integration
Answer
Answer: A
Rationale
OBD II stands for On-Board Diagnostics, Second Generation. It is a system in vehicles manufactured
from 1996 onward that monitors emission-related components and systems. The system illuminates
the Malfunction Indicator Lamp (MIL) when a fault is detected.
Question 8
What is the Malfunction Indicator Lamp (MIL)?
A) A light on the dashboard that indicates a problem with the emission control system
B) A light that indicates low tire pressure
C) A light that indicates low fuel
D) A light that indicates a safety issue
Answer
Answer: A
Rationale
The Malfunction Indicator Lamp (MIL), commonly known as the "check engine" light, illuminates when
the OBD II system detects a fault that may increase emissions. If the MIL is commanded on, the
vehicle will fail the emissions test. Inspectors must verify MIL status.
Question 9
What is a Diagnostic Trouble Code (DTC)?
A) A code that indicates a specific fault in the vehicle's emission control system
B) A code that indicates the vehicle's VIN
C) A code that indicates the vehicle's mileage
D) A code that indicates the vehicle's registration status
Answer
4
