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

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

The term penny is used to designate the __________.

A. number of threads per inch on a screw

B. length of a nail

C. cost of a nail

D. material a nail is made from

The tool above is used to __________.

A. cut tile

B. cut wire

C. turn screws

D. cut bolts

If the steering wheel vibrates at high speeds, the most likely problem is __________.

A. front end alignment

B. front tire balance

C. cracked steering column

D. over-inflated tires

The letter and numbers G78-15 printed on a tire refer to __________.

A. load, width, and diameter.

B. diameter and air pressure.

C. cubic inch displacement.

D. price code.

The tool that can be used to remove or tighten the spark plugs of an engine is called __________.

A. a hacksaw

B. clamps

C. long nose pliers

D. a spark plug wrench

Which type of bolt is has a square section that grips into the part being fixed (typically wood) to prevent the bolt from turning when the nut is tightened?

A. Hex bolt

B. Eye bolt

C. Carriage bolt

D. Set bolt

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

When you try and start an engine, you hear a clicking sound but nothing happens. What is the potential problem?

A. Dead battery

B. Excessive resistance in the solenoid

C. Faulty starter

D. All of the above