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ASE Medium / Heavy Truck

T5 Suspension & Steering — practice test

Studying for T5 (Suspension & Steering)? Overhaul Prep has 101 verified T5 questions written to the current task list — in the same formats the real exam uses (direct, Technician A/B, EXCEPT and most-likely-cause). Every answer comes with a written explanation, so you learn why instead of memorising a letter.

101T5 questions
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Sample T5 questions

Straight from the bank — answers highlighted, with the explanation underneath.

On a heavy-truck front axle, positive caster is set primarily to:

  1. Reduce tire wear from toe
  2. Provide directional stability and steering-wheel return
  3. Increase ride height
  4. Reduce kingpin inclination
WhyCaster is the forward/rearward tilt of the steering axis. Positive caster promotes straight-line (directional) stability and returns the wheels to center after a turn. Too little causes wander; unequal caster causes pull.

A truck wanders and is hard to keep in its lane. Technician A says worn kingpins or tie-rod ends can cause wander. Technician B says a loose or worn steering gear / drag link can cause wander. Who is correct?

  1. Technician A only
  2. Technician B only
  3. Both Technicians A and B
  4. Neither Technician
WhyBoth. Excess play anywhere in the steering system — worn kingpins, tie-rod/drag-link ends, loose steering gear, or improper toe/caster — lets the front wheels wander. Inspect for play and check alignment angles.

A truck bounces excessively after hitting a bump and the tires show cupped wear. The MOST likely cause is:

  1. Worn or leaking shock absorbers
  2. Over-inflated tires
  3. A bent tie rod
  4. Too much caster
WhyWorn/leaking shocks let the suspension oscillate (bounce), which hammers the tires and creates cupped/scalloped wear. Do a bounce test and inspect shocks for leakage and mounting condition.

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