Practice Test Geeks(310t) Truck and Coach Technician Certification Practice Test
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Practical Skills and Training Flashcards

7 cards from real 310T practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Practical Skills and Training flashcards as text

  1. When performing a brake chamber stroke check on a service brake, the pushrod stroke must not exceed which limit to pass inspection?

    Answer: The readjustment limit specified by FMCSA

    FMCSA regulations define readjustment limits for each brake chamber size, and a stroke exceeding that limit requires immediate adjustment.

  2. A technician notices the air dryer purge valve is leaking continuously. The MOST likely cause is:

    Answer: Failed purge valve solenoid or seat

    A continuously leaking purge valve typically indicates a failed solenoid, a worn valve seat, or debris preventing the valve from fully seating.

  3. When adjusting automatic slack adjusters on S-cam brakes, if adjustment continues to back off after the wheels turn, what is indicated?

    Answer: The S-cam bushings are worn

    Automatic slack adjusters that repeatedly back off often indicate worn S-cam bushings or tubes, which prevent proper cam rotation and cause the adjuster to reset.

  4. What is the correct procedure when bleeding air from hydraulic brake lines on a coach equipped with a hydroboost system?

    Answer: Bleed with engine running to maintain hydraulic pressure

    Hydroboost systems require the engine to run during bleeding so hydraulic pressure is available for proper pedal feel and complete air purging.

  5. During a pre-trip inspection, a driver reports the low air warning buzzer activates before the vehicle reaches operating pressure. Which component should be checked FIRST?

    Answer: Low pressure warning switch calibration

    If the warning activates prematurely, the low-pressure switch may be out of calibration or faulty, triggering the alarm at the wrong pressure threshold.

  6. A coach air conditioning system shows adequate refrigerant charge but delivers poor cooling. The technician finds the condenser coil heavily clogged. What is the DIRECT result of this condition?

    Answer: High head pressure and reduced refrigerant subcooling

    A clogged condenser restricts heat rejection, causing head pressure to rise while subcooling decreases because refrigerant cannot fully condense.

  7. When torquing steer axle wheel nuts in a two-piece flange nut design, the correct final step is:

    Answer: Torque inner nut, install outer nut, torque outer nut to spec

    Two-piece steer axle flange nuts require the inner nut to be torqued first, then the outer jam nut is installed and torqued to lock the assembly.