Auto and Shop Information for ASVAB Power Practice Problems (page 2)

Updated on Aug 12, 2011


  1. c.   A typical car battery uses 12 volts.
  2. a.   The distributor applies electric current in a proper sequence to spark plugs of an engine.
  3. b.   In tire ratings, R stands for radial. The P stands for passenger car tire.
  4. b.   If a thermostat were stuck in the closed position, no coolant could enter the engine cooling system, resulting in an overheating situation.
  5. c.   The use of the lead-tin alloy in gas tanks is to prevent rusting from water condensation inside the tank.
  6. c.   The two general classes of lubricant are oils and greases.
  7. b.   Class c fires are electrical fires, therefore water or other conductive agents should not be used due to the possibility of conducting electricity through the firefighting fluids. CO2 extinguishers do not leave harmful residues and will not damage electrical equipment.
  8. d.   Carbon monoxide is one of a number of gaseous byproducts from an automobile engine exhaust and is the most dangerous.
  9. d.   Camber is the outward or inward tilt of a wheel from its centerline. It is used in the design of automobile steering and suspension.
  10. c.   The compressor gauge is inserted into a spark plug hole to measure cylinder pressure. The other tools in this question are all measurement tools, but cannot be used to measure engine cylinder pressure.
  11. b.   The ideal air-fuel mixture for an internal combustion engine is 14.7:1, known as the stoichiometric ratio.
  12. d.   The catalytic converter creates an environment, using precious metals and chemical reactions, where the toxic byproducts of an internal combustion engine are converted to less toxic substances.
  13. c.   Oxyacetylene is a combination of the gases oxygen and acetylene.
  14. d.   A dado blade is a set of saw blades that create a wide cutting edge for use in cutting grooves into pieces of wood.
  15. c.   A band saw has a blade consisting of a continuous band of metal with teeth along one edge. It used primarily for woodworking and metalworking.
  16. d.   You would use a lathe if you want to make your own baseball bat from a piece of wood.
  17. a.   A plumb line is used in conjunction with a plumb bob to determine the verticality of a specific object or point.
  18. c.   A roof 's pitch is its degree of slope or inclination.
  19. c.   Cement, sand, gravel, and water are the primary ingredients in concrete.
  20. b.   One would use a plane to remove thin strips of wood from a larger piece of wood.
  21. a.   A plow bolt is an externally threaded fastener designed to pass through holes in assembled parts. It does not have a screw drive head.
  22. a.   A jigsaw would provide the variable movement and flexibility necessary to make a curved cut in a piece of wood.
  23. b.   Convert the 4 feet 4 inches into all inches (52 inches) and divide the total inches by the number of rope lengths; = 13.
  24. d.   Taps are used to cut internal threads, similar to a nut's threads, and dies are used to cut external threads, similar to a bolt's threads.
  25. d.   The volume of the concrete is 27 cubic feet. Volume is length times width times depth, or (L)(W)(D), so (L)(W)(D) = 27. We're told that the length L is 6 times the width W, so L equals 6W. We're also told that the depth is 6 inches, or 0.5 feet. Substituting what we know about the length and depth into the original equation and solving for W, we get (L)(W)(D) = (6W)(W)(0.5) = 27. 3W2 = 27. W2 = 9, so W = 3. To get the length, we remember that L equals 6W, so L equals (6)(3), or 18 feet.
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