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Cab Check/Engine Start

Oil Pressure Gauge

  • Make sure oil pressure gauge is working.
  • Check that pressure gauge shows increasing or normal oil pressure or that the warning light goes off.
  • If equipped, oil temperature gauge should begin a gradual rise to the normal operating range.

Temperature Gauge

  • Make sure the temperature gauge is working.
  • Temperature should begin to climb to the normal operating range or temperature light should be off.

Air Gauge

  • Make sure the air gauge is working properly.
  • Build air pressure to governor cut-out, roughly 120-140 PSI

Ammeter/Voltmeter

  • Check that gauges show alternator and/or generator is charging or that warning light is off.

Mirrors and Windshield

  • Mirrors should be clean and adjusted properly from the inside.
  • Windshield should be clean with no illegal stickers, no obstructions or no damage to the glass.

Emergency Equipment

  • Check for spare electrical fuses, unless circuit breaker equipped vehicle.
  • Check for three red reflective triangles, six fuses or three liquid burning flares.
  • Check for a properly charged and rated fire extinguisher.

Note: If the vehicle is not equipped with electrical fuses, you must mention this to the examiner.

Steering Play

  • Non-power steering: Check for excessive play by turning the steering wheel back and forth. Play should not exceed 10 degrees (or about 2 inches on a 20-inch wheel).
  • Power steering: With the engine running, check for excessive play by turning the steering wheel back and forth. Play should not exceed 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.

Wipers/Washers

  • Check that wiper arms and blades are secure, not damaged and operate smoothly.
  • If equipped, windshield washers must operate correctly.

Lights/Reflectors/Reflector Tape Condition (Sides and Rear)

Test that dash indicators work when corresponding lights are turned on:

  • Left turn signal
  • Right turn signal.
  • Four way emergency flashers.
  • High-beam headlight.
  • Antilock Braking System (ABS) indicator.

Check that all external lights and reflective equipment are clean and functional. Light and reflector checks include:

  • Clearance lights (red on rear, amber elsewhere).
  • Headlights (high and low beams).
  • Taillights.
  • Backing lights.
  • Turn signals.
  • Four-way flashers.
  • Brake lights.
  • Red reflectors (on rear) and amber reflectors (elsewhere).
  • Reflector tape condition.

Note: Checks of brake, turn signal and four-way flasher functions must be done separately.

Multiple-Choice Questions:

Question #505 (1 of 3)

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When doing a pre-trip inspection, which of the following is NOT one of the required pieces of emergency equipment you must have?

  • Spare electrical fuses, unless circuit breaker equipped vehicle.
  • Three red reflective triangles, six fuses or three liquid burning flares.
  • A basic tool kit
  • A properly charged and rated fire extinguisher

Emergency Equipment

  • Check for spare electrical fuses, unless circuit breaker equipped vehicle.
  • Check for three red reflective triangles, six fuses or three liquid burning flares.
  • Check for a properly charged and rated fire extinguisher.
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Question #506 (2 of 3)

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When doing a pre-trip inspection of the power steering, play in the steering wheel should not exceed how much?

  • There should be zero degrees of play in the steering wheel
  • 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.
  • 20 degrees (or about 4 inches on a 20-inch wheel) before the front left wheel barely moves.
  • 30 degrees (or about 6 inches on a 20-inch wheel) before the front left wheel barely moves.
Power steering: With the engine running, check for excessive play by turning the steering wheel back and forth. Play should not exceed 10 degrees (or about 2 inches on a 20-inch wheel) before the front left wheel barely moves.
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Question #507 (3 of 3)

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Which of the following is NOT one of the dash indicators you will look for during your pre-trip inspection?

  • Left turn signal indicator
  • Four-way emergency flashers
  • Antilock Braking System (ABS) indicator
  • Air lines reversed indicator

Test that dash indicators work when corresponding lights are turned on:

  • Left turn signal
  • Right turn signal.
  • Four way emergency flashers.
  • High-beam headlight.
  • Antilock Braking System (ABS) indicator.
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