ASVAB Automotive and Shop Practice Test

Automotive & Shop Practice Quiz – Part 1

Automotive & Shop Practice Quiz – Part 1

1. What do shock absorbers on a car connect the axle to?

A) Engine block
B) Frame of the car
C) Transmission
D) Driveshaft
Correct Answer: B) Frame of the car
Shock absorbers link the axle to the car frame to absorb bumps and keep the body stable while driving.

2. Where does combustion take place in a car?

A) Carburetor
B) Cylinder
C) Muffler
D) Fuel tank
Correct Answer: B) Cylinder
The fuel and air mix is ignited inside the engine cylinder, producing the power that moves the piston.

3. What does the radiator in a car do?

A) Powers the engine
B) Cools engine coolant
C) Stores fuel
D) Filters air intake
Correct Answer: B) Cools engine coolant
The radiator transfers heat from hot engine coolant to the air so the engine stays at the correct temperature.

4. What part of the engine do piston rings belong to?

A) Transmission
B) Carburetor
C) Pistons
D) Axle
Correct Answer: C) Pistons
Piston rings fit around the pistons to seal the combustion chamber and control oil consumption.

5. The catalytic converter is part of which system?

A) Cooling
B) Exhaust
C) Electrical
D) Fuel
Correct Answer: B) Exhaust
The catalytic converter sits in the exhaust system and reduces harmful gases before they leave the tailpipe.

6. If a car is mostly driven in the city and the spark plug tip never gets hot enough, what might happen?

A) Engine will accelerate faster
B) Spark plug will foul
C) Tires will wear unevenly
D) Battery will overcharge
Correct Answer: B) Spark plug will foul
Short, slow trips prevent the plug from reaching self-cleaning temperatures, causing deposits that foul it.

7. Which tool is used to smooth rough wood surfaces?

A) Hammer
B) Sanding block
C) Screwdriver
D) Wrench
Correct Answer: B) Sanding block
A sanding block evens out rough grain and prepares wood for finishing or painting.

8. What is a C-clamp used for?

A) Measuring lengths
B) Holding objects together
C) Cutting metal
D) Striking nails
Correct Answer: B) Holding objects together
C-clamps tightly secure workpieces during gluing, cutting, or assembly.

9. Which saw is best for making rough cuts with the grain of thick wood?

A) Crosscut saw
B) Coping saw
C) Rip saw
D) Hack saw
Correct Answer: C) Rip saw
A rip saw has coarse teeth designed to cut along the wood grain quickly.

10. What are piston rings designed to do?

A) Seal combustion chamber
B) Control fuel flow
C) Absorb vibration
D) Connect axle to suspension
Correct Answer: A) Seal combustion chamber
Piston rings seal the gap between piston and cylinder to keep combustion gases in and oil out.

11. Which of the following is NOT part of a vehicle’s electrical system?

A) Battery
B) Alternator
C) Fuel pump
D) Starter motor
Correct Answer: C) Fuel pump
The fuel pump belongs to the fuel system, not the core electrical components like battery or starter.

12. Which tool is best suited for turning bolts and nuts?

A) Hammer
B) Pliers
C) Wrench
D) Screwdriver
Correct Answer: C) Wrench
Wrenches are made to grip and apply torque to bolts and nuts for tightening or loosening.

13. What is the primary function of the transmission in a car?

A) Provide power to wheels
B) Control air intake
C) Change engine speed and torque
D) Store fuel
Correct Answer: C) Change engine speed and torque
The transmission adjusts engine output to the right speed and torque for the wheels.

14. What type of wrench adjusts to multiple sizes?

A) Box wrench
B) Open-end wrench
C) Adjustable wrench
D) Torque wrench
Correct Answer: C) Adjustable wrench
An adjustable wrench has a movable jaw so one tool fits different nut and bolt sizes.

15. What does “torque” refer to in automotive terms?

A) Engine temperature
B) Force causing rotation
C) Electrical resistance
D) Speed of the car
Correct Answer: B) Force causing rotation
Torque is the twisting force that turns shafts, wheels, and fasteners.

16. In wood and metal shop practices, what is the use of a file?

A) Cutting wood
B) Smoothing rough edges
C) Painting surfaces
D) Drilling holes
Correct Answer: B) Smoothing rough edges
Files remove small amounts of material to shape or smooth edges and surfaces.

17. What type of fluid is typically used in hydraulic brakes?

A) Engine oil
B) Brake fluid
C) Transmission fluid
D) Antifreeze
Correct Answer: B) Brake fluid
Brake fluid transfers force through the brake lines to activate the braking system.

18. Which tool measures electrical current?

A) Voltmeter
B) Ammeter
C) Ohmmeter
D) Thermometer
Correct Answer: B) Ammeter
An ammeter displays current in amperes so you can check electrical flow in a circuit.

19. The clutch in a vehicle is used to?

A) Help steering
B) Engage/disengage engine from transmission
C) Apply brakes
D) Charge battery
Correct Answer: B) Engage/disengage engine from transmission
The clutch lets the driver temporarily separate the engine from the transmission to change gears.

20. What is the main purpose of a torque wrench?

A) Measure/apply specific torque to fastener
B) Cut metal
C) Tighten screws by hand
D) Measure length
Correct Answer: A) Measure/apply specific torque to fastener
Torque wrenches ensure bolts are tightened to the correct torque to avoid failure or damage.

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