#1
Which of the following is a primary safety feature in modern vehicles?
Airbags
ExplanationAirbags provide cushioning to occupants during collisions.
#2
In the context of vehicle maintenance, what does 'OBD' stand for?
On-Board Diagnostics
ExplanationOBD systems monitor and report on vehicle health and emissions levels.
#3
What is the primary purpose of the alternator in a vehicle?
Charging the battery
ExplanationAlternators generate electricity to charge the battery and power electrical components while the engine is running.
#4
What is the purpose of the differential in a vehicle's drivetrain?
Equalizing engine power to the wheels
ExplanationDifferentials distribute engine power evenly to the wheels while allowing them to rotate at different speeds, enabling smooth turns.
#5
Which part of a vehicle is responsible for converting the reciprocating motion of the engine's pistons into rotational motion for the wheels?
Crankshaft
ExplanationCrankshafts convert the up-and-down motion of the engine's pistons into rotational motion, transferring power to the wheels.
#6
What does ABS stand for in the context of vehicle safety?
Anti-Lock Braking System
ExplanationABS prevents wheels from locking up during braking, maintaining steering control.
#7
Which fluid is essential for maintaining proper engine temperature in a vehicle?
Coolant
ExplanationCoolant regulates engine temperature to prevent overheating.
#8
Which of the following is a critical factor in determining tire health and safety?
Tread depth
ExplanationAdequate tread depth ensures proper traction and handling.
#9
What is the primary purpose of the catalytic converter in a vehicle?
Reducing harmful emissions
ExplanationCatalytic converters convert toxic pollutants in exhaust gases into less harmful emissions.
#10
Which type of brake system is known for providing more stopping power and heat dissipation?
Disc brakes
ExplanationDisc brakes offer superior stopping power and heat dissipation compared to drum brakes.
#11
What does the term 'TPMS' refer to in the context of vehicle maintenance?
Tire Pressure Monitoring System
ExplanationTPMS alerts drivers to low tire pressure, enhancing safety and efficiency.
#12
Which part of a vehicle is responsible for converting engine power into forward motion?
Transmission
ExplanationTransmission transfers power from the engine to the wheels at varying speeds.
#13
Which safety feature helps prevent a vehicle from rolling backward on an incline?
Hill Start Assist
ExplanationHill Start Assist prevents vehicles from rolling backward when starting on an incline.
#14
What does the acronym 'ESP' stand for in the context of vehicle safety systems?
Electronic Stability Program
ExplanationESP helps maintain vehicle stability by detecting and reducing skidding.
#15
What does the acronym 'SRS' stand for in relation to vehicle safety?
Safety Restraint System
ExplanationSRS includes airbags and seat belts, designed to protect occupants during collisions.