Automotive Information Practice Set 1

1. Select the best answer for each question. This question set has 11 practice questions, which is the number of Automotive Information questions you will see if you take the CAT-ASVAB.

1. How many revolutions of the crankshaft does it take to complete one cycle of events in a four-stroke cycle engine?
   1. one-half
   2. one
   3. two
   4. four
2. This image depicts what stroke in the four-stroke cycle?

   

   1. intake stroke
   2. compression stroke
   3. power stroke
   4. exhaust stroke
3. The engine’s crankshaft is connected to the piston through the
   1. cylinder
   2. intake valve
   3. exhaust valve
   4. connecting rod
4. A 12:1 air-fuel mixture would be a mixture.
   1. rich
   2. lean
   3. stoichiometric
   4. none of the above
5. Diesel engines utilize a
   1. high compression ratio
   2. spark ignition system
   3. low compression ratio
   4. carburetor
6. The antifreeze in the engine’s coolant will
   1. lower the boiling point of the coolant
   2. raise the boiling point of the coolant
   3. raise the freezing point of the coolant
   4. lower the corrosion resistance of the coolant
7. Identify this engine component.

   

   1. spark plug
   2. fuel injector
   3. wrist pin
   4. valve spring
8. Electronic fuel injectors are controlled by the
   1. powertrain control module
   2. fuel pressure regulator
   3. electric fuel pump
   4. ignition switch
9. Where does combustion take place in the engine?

   

   1. 1
   2. 2
   3. 3
   4. 4
10. The PCM receives signals from the vehicle’s
    1. sensors
    2. diagnostic data link
    3. actuators
    4. scan tool
11. Oil galleries in the crank shaft provide pressurized oil to
    1. the pistons
    2. the push rods
    3. the valves
    4. the connecting rod bearings

Automotive Information Practice Set 2

1. Select the best answer for each question. This question set has 11 practice questions, which is the number of Automotive Information questions you will see if you take the CAT-ASVAB.

1. How do shock absorbers dissipate suspension system energy?
   1. by converting motion energy into electric power
   2. by converting motion energy into potential energy
   3. by converting motion energy into heat energy
   4. by neutralizing chemical energy
2. The water-cooled engine component that rejects heat is the
   1. water pump
   2. thermostat
   3. radiator
   4. antifreeze
3. Multiport fuel injectors are located in
   1. the throttle body
   2. the combustion chamber
   3. the intake manifold
   4. the flame front
4. Which of the following is developed in the catalytic converter?
   1. toxic gas
   2. high heat
   3. hydrocarbon gas
   4. carbon trioxide
5. Coil-on-plug ignition systems eliminate the need for
   1. secondary coil winding
   2. spark plug wires
   3. spark plugs
   4. primary coil winding

6. The main component of an engine's charging system is the ____________.

   1. power charger
   2. battery
   3. rectifier
   4. alternator

7. Automatic transmissions do not require a clutch because a __________ transmits power from the engine to the transmission.

   1. half-shaft
   2. torque converter
   3. drive axle
   4. constant-velocity joint

8. Which of the following components is not a part of an automobile’s suspension system?

   1. coil spring
   2. control arm
   3. rotator cuff
   4. shock absorber

9. Rack and pinion gears are found in which of the following applications?

   1. steering system
   2. manual transmission
   3. lubrication system

   4. automatic transmission

10. The most important property that enables a hydraulic brake system to transmit pressure from the master cylinder to all individual brakes is __________.

    1. viscosity
    2. incompressibility
    3. acidity
    4. adaptability

11. Which of the following is the least expensive and most effective maintenance procedure to maintain maximum engine life?

    1. lubricating all fittings
    2. regularly changing automatic transmission fluid
    3. regularly changing the oil and filter
    4. properly maintaining the thermostat

REflect

Look back over your work on the practice questions. If you got some questions wrong, think about why.

• Are there specific systems you need to review? If so, review this chapter, and then try to draw diagrams of those systems on your own.
• Did you get tripped up over the names of parts? If so, review the chapter, focusing on the words in bold. Also, consider making those words into flashcards.
• How did you do overall? Do you need to review this chapter comprehensively?