ASVAB ASVAB Certifications ASVAB-SECTION-4 Questions & Answers

• Question 71:

  A typical car engine has how many strokes per cycle?

  A. 1

  B. 6

  C. 8

  D. 4

  Correct Answer: D

• Question 72:

  To make a wide groove in a board with a table saw, what type of blade would you use?

  A. mitre

  B. cross-cut

  C. rip

  D. dado

  Correct Answer: D

  A dado head blade is used for making wide grooves.

• Question 73:

  The function of a brake drum or rotor is to act as __________.

  A. a heat extinguisher

  B. a heat sink

  C. a friction element

  D. all of the above

  Correct Answer: D

  A brake system works on the principle of friction, which develops heat in the process of braking. The drum absorbs and dissipates the heat developed.

• Question 74:

  Which of the following items is part of the braking system is an automobile?

  A. master cylinder

  B. calipers

  C. drums

  D. all of the above

  Correct Answer: D

  When the brake pedal is pressed, it operates the master cylinder, which forces the brake fluid through the lines out to each wheel. The pressure in the brake lines causes the calipers to move and press the brake shoes against the brake drum. This causes the automobile to slow down.

• Question 75:

  Which automotive system uses fuses and an alternator?

  A. the engine

  B. the cooling system

  C. the electrical system

  D. the steering system

  Correct Answer: C

  The fuses are used as links in the electrical system to prevent damage to other key components. The alternator is used to recharge the battery when the car is running.

• Question 76:

  The function of a catalytic converter is primarily to __________.

  A. change pollutants into substances that are less harmful

  B. improve the starting power of the automobile

  C. force air into the engine for better acceleration

  D. control the amount of gasoline that flows into the engine

  Correct Answer: A

  The catalytic converter converts pollutants into less harmful substances.

• Question 77:

  Which of the following woodworking objects would most likely be created with a lathe?

  A. a building block

  B. a door

  C. a sign

  D. a table leg

  Correct Answer: D

  A lathe is a tool which is typically used to carve long, slender pieces of wood. The wood is attached to the lathe and an electric motor spins the piece of wood. A cutting blade is then used to remove parts of the wood, giving a decorative shape. A lathe would not be useful in making the other objects listed.

• Question 78:

  In the typical workshop, a plane is used for what purpose?

  A. removing thin strips of wood

  B. welding metal

  C. curing concrete

  D. loosening bolts

  Correct Answer: A

  A plane is a hand tool that has a sharp blade extending slightly below the bottom surface of the tool. The plane is pushed across the surface of a piece of wood and the blade removes a thin layer of wood from the surface.

• Question 79:

  Which of the following systems connects directly to the internal combustion engine in an automobile?

  A. the braking system

  B. the suspension system

  C. the cooling system

  D. the steering system

  Correct Answer: C

  The cooling system circulates water around the engine to prevent it from overheating. None of the other systems is connected directly to the engine.

• Question 80:

  Of which automotive system does the driver have the most direct control while driving?

  A. the exhaust system

  B. the braking system

  C. the cooling system

  D. the suspension system

  Correct Answer: B

  The braking system can be controlled by the driver by pressing the brake pedal. The other systems listed cannot typically be directly controlled while operating the automobile.