TheoryFree ASE T3 Drivetrain Exam Prep Practice Test PDF
Download a free ASE T3 Drivetrain Exam Prep practice test PDF with 30 questions, answers and explanations, then continue with online mock exams.
Free ASE T3 Drivetrain Exam Prep PDF with 30 questions
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The PDF includes 30 ASE T3 Drivetrain Exam Prep questions with answers and explanations.
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Q1A truck operator reports a clunk noise when accelerating from a stop. Technician A says to inspect the U-joints for excessive wear. Technician B says to check for loose driveshaft yokes. Who is right?
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✓ Correct answer: Both Technician A and B
Both technicians are correct. Worn U-joints can create clunking noises during acceleration as the slack in the worn joint is taken up. Similarly, loose driveshaft yokes will allow movement that results in a clunk sound when power is applied.
Q2When inspecting a driveshaft with two-piece construction, what component should be checked for bearing wear?
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✓ Correct answer: Center support bearing
The center support bearing in a two-piece driveshaft supports the connection between the two driveshaft sections and is a common source of problems when worn.
Q3A truck has a vibration that increases with road speed. Technician A says an out-of-balance driveshaft could be the cause. Technician B says incorrect driveshaft phasing could be the cause. Who is right?
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✓ Correct answer: Both Technician A and B
Both issues can cause vibration that increases with road speed. An out-of-balance driveshaft creates a rotating imbalance, while incorrect phasing between driveshaft sections creates a cyclical vibration.
Q4Which tool is most appropriate for checking universal joint wear?
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✓ Correct answer: Dial indicator
A dial indicator is the most appropriate tool for accurately measuring the amount of movement (wear) in a universal joint by detecting small movements between the cross and cap assemblies.
Q5What is the most likely cause of a driveshaft vibration that occurs only at highway speeds under a load?
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✓ Correct answer: Worn U-joints
Worn U-joints are most likely to cause vibration under load at highway speeds because the increased torque exaggerates the movement in the worn components as they rotate.
Q6When measuring driveline angles on a truck, what should be verified first?
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✓ Correct answer: Vehicle ride height
Vehicle ride height must be verified first when measuring driveline angles because improper ride height will change all subsequent angle measurements and lead to incorrect analysis.
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