Correct Verified Answers – Updated .
1. What is the minimum tread depth required for front tires on a
Class E vehicle?
• A) 2/32 inch
• B) 4/32 inch
• C) 1 inch
• D) 6/32 inch
Answer: B) 4/32 inch
Rationale: The minimum tread depth requirement is 4/32 inch on
every major groove on the front wheels and at least 2/32 inch
on all other wheels .
2. What is the minimum tread depth required for rear tires on a
Class E vehicle?
• A) 2/32 inch
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, • B) 4/32 inch
• C) 1 inch
• D) 6/32 inch
Answer: A) 2/32 inch
Rationale: Rear tires require at least 2/32 inch of tread depth,
while front tires require 4/32 inch .
3. How do you test hydraulic brakes for a leak?
• A) Drive at low speed and apply firm pressure
• B) With the vehicle stopped, push the pedal and hold for 5
seconds
• C) With the vehicle stopped, pump the brake pedal three
times, apply firm pressure, and hold for 5 seconds
• D) Check the brake fluid reservoir only
Answer: C) With the vehicle stopped, pump the brake pedal
three times, apply firm pressure, and hold for 5 seconds
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,Rationale: To test for hydraulic brake leaks, pump the brake
pedal three times, apply firm pressure, and hold for five
seconds. The pedal should not move; if it does, there is a leak .
4. How do you test hydraulic brakes for stopping action?
• A) Go about 5 mph and push the brake pedal firmly
• B) With the vehicle stopped, pump the pedal three times
• C) With the vehicle stopped, push the pedal firmly and hold
for 5 seconds
• D) Drive at 20 mph and brake suddenly
Answer: A) Go about 5 mph and push the brake pedal firmly
Rationale: To test stopping action, go about 5 mph and push the
brake pedal firmly .
5. What is steering wheel play that can make steering difficult?
• A) 5 degrees
• B) 10 degrees or two inches
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, • C) 15 degrees
• D) 20 degrees
Answer: B) 10 degrees or two inches
Rationale: Steering wheel play of 10 degrees or two inches can
make steering difficult and is a defect that should be identified
during inspection .
6. What steering system defects should you look for during
inspection?
• A) Missing or broken parts, bent or loose components
• B) Only worn tires
• C) Only brake fluid leaks
• D) Only engine oil leaks
Answer: A) Missing or broken parts, bent or loose
components
Rationale: Look for missing nuts, bolts, cotter keys, and other
parts; bent, loose, or broken parts; and worn or missing parts .
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