ASVAB-SECTION-4 Online Practice Questions and Answers

In an overhead valve system (OHV), what mechanism opens and closes the valves?

A. rocker arms

B. camshaft

C. valve rotator

D. electrical energy from the alternator

The tool above is used to:

A. finish concrete

B. spread joint compound

C. smooth wallpaper

D. dress wood

If the electrolyte solution in a battery is too low, you should add __________.

A. sulfuric acid

B. antifreeze

C. distilled water

D. gasoline

What area of your car should be flushed periodically to maintain optimum performance?

A. exhaust system

B. brake system

C. cooling system

D. ignition system

In a hydraulic brake system, if brake action is soft, a likely explanation is __________.

A. the rotors are worn

B. air has gotten into the system

C. the master cylinder needs to be replaced

D. the brake calipers need adjustment

To make spark plugs work effectively, the coil and breaker __________.

A. provide a gap between the electrodes.

B. ignite the spark.

C. transfer the electricity to the correct spark plug.

D. create a very high voltage of electricity.

The terminals exposed on the ignition induction coil are __________.

A. two secondary and one primary

B. one secondary and one primary

C. one secondary and two primary

D. two secondary and two primary

The brushes in an alternator ride on __________.

A. the commutator

B. the stator

C. slip rings

D. the heat sink

A squaring shear is used to __________.

A. cut metal off to a straight line.

B. square a piece of metal.

C. fold a piece of sheet metal.

D. punch a piece of sheet metal.

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

What does "EFI" stand for in EFI computer?

A. Electronic Fuel Insertion

B. Electronic Fuel Injection

C. Express Fuel Injection

D. Engineered Focal Injection

The small, flat, metal item responsible for protecting the surface from the bolt digging into it and additionally for keeping the bolt tight in place is called a ___________.

A. washer

B. nut

C. screw

D. flat bolt

Which would be the last woodworking plane that you would use to prepare a rough sawn board for finishing?

A. Jointer plane

B. Scrub plane

C. Jack plane

D. Smoothing plane

The best way to sand the end grain of wood is __________.

A. with the grain

B. with a circular motion

C. crosswise

D. up and down

Which of the following can cause water sludge in engine crankcase oil?

A. water condensation in the crankcase

B. changing your oil too frequently

C. using synthetic oil

D. using a low viscosity oil