Commercial Vehicle Maintenance Exam

This is a prototype end of course exam for the purpose of creating and extracting xAPI statements to an LRS.  The statements will be used to calculate a student's learning objective performance value.  

(E) Without the aid of reference, recall the major components of a vehicle’s air brake system and their purpose.

Which of the following is NOT a major component of a vehicle's air brake system?

  • master cylinder assembly
  • hand brake
  • drain valves
  • auxiliary reservoir

Which of the following describes the purpose of the main reservoir?

  • transfer the driver’s input to slow the speed of the vehicle into a mechanical action by the entire hydraulic brake system
  • adjust the vehicle’s seats
  • open the trunk
  • store pressurized air

(B) Without the aid of reference, recall the major components of a vehicle electrical system and their purpose.

Which of the following is NOT a major component of a vehicle's electrical system?

  • auxiliary reservoir
  • alternator
  • fuse box
  • starter solenoid

Which of the following describes the purpose of the starter solenoid?

  • store additional fuses
  • convert electrical current to mechanical motion to enable the starter motor to start the vehicle
  • assist in latching the seat belt
  • store pressurized air

(C) Without the aid of reference, recall the major components of a vehicle’s steering system and their purpose.

Which of the following is NOT a major component of a vehicle's steering system?

  • steering column
  • fuel injector
  • tires
  • rack and pinon unit

Which of the following describes a purpose of the power steering fluid reservoir?

  • ensure the wheels maintain alignment
  • activate the electrical power of a vehicle
  • recharge the battery
  • store hydraulic fluid needed to operate the power steering system

(F) Without the aid of reference, recall the major components of a diesel engine and their purpose.

Which of the following is NOT a major component of a diesel engine?

  • exhaust manifold
  • compressor
  • timing belt
  • oil pan

Which of the following describes the purpose of the camshaft?

  • open the trunk
  • convert its rotational motion to a up and down motion through the push rods and rocker arms to open valves into the combustion chambers
  • activate the electrical power of a vehicle
  • transfer the driver’s input to slow the speed of the vehicle into a mechanical action by the entire hydraulic brake system