Test Prep ASVAB Section 4: Automotive and Shop Information Exam (page: 2)
Test Prep ASVAB Section Four : Automotive & Shop Information
Updated on: 24-Mar-2026

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

  1. rocker arms
  2. camshaft
  3. valve rotator
  4. electrical energy from the alternator

Answer(s): A



If a car’s ignition system, lights, and radio don’t work, the part that’s probably malfunctioned is the _______________.

  1. cylinder block
  2. water pump
  3. carburetor
  4. battery

Answer(s): D



A gauge shows the complete loss of oil pressure while driving. The best action is to______________.

  1. Stop by the gas station when convenient to top off the oil.
  2. Pull over immediately and investigate the problem.
  3. Drive directly to a repair garage.
  4. Assume everything is fine and continue driving as usual.

Answer(s): B



A two-cycle engine will normally be found on __________________.

  1. small cars
  2. large diesel trucks
  3. trucks, vans, and some cars
  4. snowmobiles, chainsaws, and some motorcycles

Answer(s): D



The difference between a single-acting and an opposed piston engine is_____________.

  1. Single-acting piston engines wear longer.
  2. Opposed piston engines have cylinders set in a V-shape.
  3. Single-acting piston engines have one piston per cylinder and opposed piston engines have two.
  4. Single-acting piston engines are used with carburetors and opposed piston engines are used with fuel injectors.

Answer(s): C



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