Automobile Quiz
Questions: 16 · 10 minutes
1. When is tire pressure generally best checked for comparison with the vehicle manufacturer's recommended pressure?
When the tires are cold, using the pressure listed on the vehicle placard or in the manual
Immediately after sustained high-speed driving
Only after the tire-pressure warning light appears
After lowering every tire to the pressure printed as its sidewall maximum
2. What does a gasoline fuel's octane rating primarily indicate?
Its resistance to uncontrolled combustion known as engine knock
The amount of energy contained in each gallon
The percentage of detergent additives in the fuel
How quickly the fuel evaporates in cold weather
3. What is the correct sequence of strokes in a conventional four-stroke gasoline engine?
Compression, intake, exhaust, power
Intake, power, compression, exhaust
Intake, compression, power, exhaust
Power, exhaust, compression, intake
4. What is the main purpose of an anti-lock braking system (ABS)?
To shorten every stop by automatically increasing engine braking
To help prevent wheel lock while the driver brakes, preserving steering control
To distribute power between the vehicle's driven wheels
To keep the parking brake from engaging while the car is moving
5. In a conventional gasoline-powered car, which component normally supplies electrical power and recharges the battery while the engine is running?
The starter motor
The ignition coil
The catalytic converter
The alternator
6. What is a VIN on most modern road vehicles?
A measurement of the engine's intake airflow
A code that states the recommended tire pressure only
A standardized 17-character vehicle identification number
A digital record of every trip made by the vehicle
7. On a long, steep descent, which technique can help control speed without relying continuously on the service brakes?
Shift into neutral and let the vehicle coast freely
Switch off the engine while the vehicle is moving
Select an appropriate lower gear so engine or motor braking assists
Hold the parking brake partially engaged throughout the descent
8. Which automobile component provides selectable gear ratios between the engine or motor and the driven wheels?
The transmission
The suspension
The brake booster
The radiator
9. What is the basic function of a differential in a vehicle's drivetrain?
It synchronizes engine speed with the alternator
It allows driven wheels to rotate at different speeds while turning
It makes the transmission use two gears simultaneously
It changes hydraulic brake pressure into electrical power
10. Which description best defines a hybrid automobile?
An electric vehicle that can be charged only by regenerative braking
A gasoline vehicle fitted with two fuel tanks of different sizes
A vehicle that combines more than one propulsion source, commonly an internal-combustion engine and an electric motor
A vehicle that automatically switches between front- and rear-wheel steering
11. While driving, the engine-temperature gauge enters the red zone. What is the safest general response?
Pull over safely, shut off the engine, and follow the owner's manual without opening a hot pressure cap
Keep driving at highway speed so airflow cools the engine
Immediately pour cold water into the cooling system
Turn the engine off while still moving and coast in traffic
12. The tire-pressure monitoring system warning illuminates while you are driving. What is the most appropriate interpretation?
The tires have reached their maximum permitted pressure
The tires must be replaced immediately regardless of their condition
The wheel alignment has automatically been corrected
One or more tires may have a pressure issue, so the pressures and tire condition should be checked safely
13. In many electric vehicles, what happens when regenerative braking slows the car?
The battery disconnects while friction brakes convert motion into fuel
The drive motor acts as a generator and sends some recovered energy to the battery
The tires produce electricity through increased rolling resistance
The charging port draws power from nearby electrical infrastructure
14. A car begins to hydroplane on a wet road. What should the driver generally do first?
Accelerate to press the tires more firmly against the road
Turn sharply toward the shoulder to leave the wet surface
Apply the parking brake to slow only the rear wheels
Ease off the accelerator and make smooth, controlled steering inputs
15. During a hard emergency stop, a driver feels rapid pulsing through the brake pedal while ABS is operating. What does this usually mean?
The parking brake has automatically engaged
The tires have lost all contact with the road
The transmission is repeatedly changing gears
The ABS is cycling brake pressure, so the driver should generally maintain firm pedal pressure
16. What is the principal job of a catalytic converter in a gasoline vehicle's exhaust system?
To make exhaust gases leave the engine at higher pressure
To convert certain harmful exhaust pollutants into less harmful substances
To return unburned gasoline directly to the fuel tank
To prevent coolant from entering the combustion chambers