Smog Check License Exam Pt 1
2024/2025 Exam Questions with 100%
Correct Answers | Latest Update
pumps air into the exhaust manifold to burn unburned fuels (hydrocarbons
& carbon monoxide) and helps to warm up the catalytic converter. - 🧠
ANSWER ✔✔Air Injection System (AIS)
A government agency that oversees the air quality and establishes the
Rules and Regulations to maintains healthy air quality. Typically referred to
simply as ARB. - 🧠 ANSWER ✔✔ARB/CARB (California air resources
board)
The test type for vehicles operated on a dynamometer which stimulates
actual driving conditions. The vehicle is tested at 15 mph with a 50% load
and at 25 mph with a 15% load on the engine. - 🧠 ANSWER ✔✔ASM
(Acceleration Stimulation Mode)
An area less polluted than an enhanced area requiring only Two Speed Idle
Smog testing for Biennial, Change of Ownership, and initial registration in
California - 🧠 ANSWER ✔✔Basic Area
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
, The measurement, in degrees of rotation, before a piston reaches the top
of its compression stroke. - 🧠 ANSWER ✔✔BTDC (Before Top Dead
Center)
carbon monoxide is a colorless, orderless gas that is fatal to many life
forms in moderate concentrations. CO emissions are often the byproduct of
an overly rich mixture. - 🧠 ANSWER ✔✔What is Carbon Monoxide (CO)?
A vehicle failing its smog check. - 🧠 ANSWER ✔✔Unhealthy levels of CO
emissions are result in...
percent - 🧠 ANSWER ✔✔CO is measured in...
Located between the exhaust manifold and the muffler, this device uses
precious metals as a catalyst to turn hydrocarbons, carbon monoxide,
oxygen, and oxides of nitrogen into carbon dioxide and water vapor. - 🧠
ANSWER ✔✔CAT (Catalytic Converter)
A sensor used to measure the vehicle's engine coolant temperature that
sends the signal to the on-board computer for processing - 🧠 ANSWER
✔✔CTS (Coolant Temperature Sensor)
The number of combustion cylinders in the engine (typically 4, 6, or 8) - 🧠
ANSWER ✔✔Cylinders
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
2024/2025 Exam Questions with 100%
Correct Answers | Latest Update
pumps air into the exhaust manifold to burn unburned fuels (hydrocarbons
& carbon monoxide) and helps to warm up the catalytic converter. - 🧠
ANSWER ✔✔Air Injection System (AIS)
A government agency that oversees the air quality and establishes the
Rules and Regulations to maintains healthy air quality. Typically referred to
simply as ARB. - 🧠 ANSWER ✔✔ARB/CARB (California air resources
board)
The test type for vehicles operated on a dynamometer which stimulates
actual driving conditions. The vehicle is tested at 15 mph with a 50% load
and at 25 mph with a 15% load on the engine. - 🧠 ANSWER ✔✔ASM
(Acceleration Stimulation Mode)
An area less polluted than an enhanced area requiring only Two Speed Idle
Smog testing for Biennial, Change of Ownership, and initial registration in
California - 🧠 ANSWER ✔✔Basic Area
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
, The measurement, in degrees of rotation, before a piston reaches the top
of its compression stroke. - 🧠 ANSWER ✔✔BTDC (Before Top Dead
Center)
carbon monoxide is a colorless, orderless gas that is fatal to many life
forms in moderate concentrations. CO emissions are often the byproduct of
an overly rich mixture. - 🧠 ANSWER ✔✔What is Carbon Monoxide (CO)?
A vehicle failing its smog check. - 🧠 ANSWER ✔✔Unhealthy levels of CO
emissions are result in...
percent - 🧠 ANSWER ✔✔CO is measured in...
Located between the exhaust manifold and the muffler, this device uses
precious metals as a catalyst to turn hydrocarbons, carbon monoxide,
oxygen, and oxides of nitrogen into carbon dioxide and water vapor. - 🧠
ANSWER ✔✔CAT (Catalytic Converter)
A sensor used to measure the vehicle's engine coolant temperature that
sends the signal to the on-board computer for processing - 🧠 ANSWER
✔✔CTS (Coolant Temperature Sensor)
The number of combustion cylinders in the engine (typically 4, 6, or 8) - 🧠
ANSWER ✔✔Cylinders
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
