Short Answer Flashcards
7 cards from real ASE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Short Answer flashcards as text
What is the function of the thermostat in an engine cooling system?
Answer: Regulate coolant flow to maintain operating temperature
The thermostat opens and closes to keep the engine at its proper operating temperature.
An alternator that overcharges the battery is most likely caused by a fault in which component?
Answer: Voltage regulator
The voltage regulator controls alternator output, so overcharging usually points to a faulty regulator.
Which suspension component connects the steering knuckle to the control arm and allows it to pivot?
Answer: Ball joint
The ball joint allows the steering knuckle to pivot relative to the control arm during steering and suspension travel.
What is indicated when an engine has low compression in one cylinder that does NOT improve after adding oil to the cylinder?
Answer: A leaking valve or head gasket
If oil does not raise compression, the leak is at the valves or head gasket rather than the rings.
What is the primary purpose of a vehicle's differential?
Answer: Allow drive wheels to turn at different speeds while transmitting power
The differential lets the drive wheels rotate at different speeds, such as when cornering, while still delivering power.
A scan tool shows a long-term fuel trim of +25%. What does this indicate?
Answer: The engine is running lean and the PCM is adding fuel
A large positive fuel trim means the PCM is adding fuel to compensate for a lean condition.
Which type of fire extinguisher is appropriate for an electrical fire in a shop?
Answer: Class C
Class C extinguishers are rated for energized electrical fires.