ASE T5 Domain 2: Suspension, Frame, and 5th Wheel Diagnosis and Repair

When diagnosing a heavy-duty truck with uneven tire wear, the FIRST component to inspect should be the:

During a routine inspection, a technician finds that a leaf spring has a flattened appearance. The most likely cause is:

A truck driver reports a vibration that increases with speed. The technician should FIRST check:

A technician observes that a truck's air suspension system is lower on one side. The most probable cause is:

When inspecting a truck's 5th wheel, a technician finds abnormal wear on the locking jaws. This is MOST likely caused by:

A technician finds excessive play in a truck's steering. After ruling out steering linkage and gear box issues, the NEXT component to inspect should be the:

During a brake application, a truck's rear end dips significantly. The likely cause is:

If a truck has a persistent drift to the left, a technician should FIRST inspect the:

A technician finds that a truck's 5th wheel has excessive fore-and-aft movement. This condition is most likely due to:

A truck exhibits uneven tire wear on one side. The technician should inspect the:

When a truck's frame shows signs of twisting, a common cause is:

A technician notes that a truck with air suspension sits lower in the rear than in the front when unloaded. The primary area to inspect is the:

When a heavy-duty truck exhibits excessive bounce while driving over bumps, the MOST likely cause is:

A technician finds that a heavy-duty truck's suspension air bags do not maintain consistent pressure. The FIRST thing to check should be the:

A truck with an air ride suspension has a lean to one side. The most probable cause is:

During a routine inspection, a technician notices cracks around the fifth wheel mounting bolts. This is MOST likely caused by:

When diagnosing a truck's air suspension system, a technician notes that the air pressure does not rise to the required level. The first component to check is the:

A heavy-duty truck exhibits a harsh ride over uneven road surfaces. The MOST likely cause is:

During a visual inspection, a technician notices uneven wear on a leaf spring's leaves. This is most indicative of:

If a truck's fifth wheel shows signs of excessive movement when under load, the technician should FIRST inspect: