ASVAB Auto and Shop: Vehicle Braking, Cooling, and Electrical Systems

Question 1

Which principle explains how pressing the brake pedal transmits force through brake fluid to the wheel cylinders or calipers?

Accepted Answer

Pascal's law

Answer

Bernoulli's principle

Answer

Newton's third law

Answer

Archimedes' principle

Question 2

What is the primary function of the thermostat in a vehicle's cooling system?

Accepted Answer

To regulate coolant flow based on engine temperature

Answer

To pump coolant through the engine block

Answer

To remove heat from the coolant using airflow

Answer

To pressurize the cooling system to raise the boiling point

Question 3

Which vehicle component converts mechanical energy from the engine into electrical energy to recharge the battery while the vehicle is running?

Accepted Answer

Alternator

Answer

Starter motor

Answer

Voltage regulator

Answer

Distributor

Question 4

Disc brakes use which component to squeeze against the rotor and create stopping friction?

Accepted Answer

Brake caliper and pad

Answer

Brake drum

Answer

Brake shoe

Answer

Wheel cylinder

Question 5

What is the purpose of a vehicle's radiator?

Accepted Answer

To transfer heat from the coolant to the surrounding air

Answer

To filter contaminants from engine coolant

Answer

To store excess coolant when the system is pressurized

Answer

To mix air and fuel before combustion

Question 6

A vehicle's fuse blows repeatedly on the same circuit. What is most likely the root cause?

Accepted Answer

There is a short circuit or excessive current draw in that circuit

Answer

The battery is discharged

Answer

The alternator is overcharging the battery

Answer

The coolant level is low