Powertrain & Mechanical Systems Evaluation Flashcards
7 cards from real CVA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Powertrain & Mechanical Systems Evaluation flashcards as text
During a road test, an appraiser observes that the automatic transmission takes several seconds to engage after shifting from Park to Drive. This condition is best described as:
Answer: Delayed or hesitation engagement
Delayed engagement when selecting Drive or Reverse indicates worn clutch packs, low line pressure, or degraded fluid and is a notable transmission defect that affects appraisal value.
An appraiser checks the automatic transmission fluid and finds it contains metallic particles. What does this finding most likely indicate?
Answer: Internal mechanical damage within the transmission
Metal particles in ATF indicate internal component failure such as worn clutch plates, damaged planetary gears, or bearing breakdown — all signs of serious mechanical damage.
What is the primary function of a vehicle's differential?
Answer: Allowing wheels on the same axle to rotate at different speeds during cornering
The differential allows the inside and outside wheels on the same axle to rotate at different speeds during turns, preventing tire scrubbing and drivetrain binding.
Which symptom most directly indicates a slipping clutch during a manual transmission road test?
Answer: Engine RPMs rising without a corresponding increase in vehicle speed
When a clutch slips, the disc cannot fully grip the flywheel, allowing the engine to rev freely without transferring that power to the transmission and driving wheels.
What is the primary role of a transfer case in a four-wheel-drive vehicle?
Answer: Distributing torque between the front and rear axles
The transfer case receives output from the transmission and distributes torque to both the front and rear axles, enabling four-wheel or all-wheel drive.
Which symptom is most characteristic of a failing CVT (Continuously Variable Transmission)?
Answer: A whining noise combined with a slipping sensation during acceleration
Failing CVTs commonly exhibit a whining noise from the belt or chain and a rubber-banding or slipping sensation during acceleration as the variator pulleys and belt wear beyond tolerance.
A vehicle being appraised has a recently rebuilt transmission with documentation. What is the correct appraisal approach?
Answer: Document the rebuild details and adjust value based on remaining warranty and rebuilder reputation
A rebuilt transmission must be documented with the rebuilder's identity, warranty terms, and mileage since rebuild, as quality and warranty determine whether value is neutral, reduced, or minimally impacted.