Auto and Shop Information Flashcards
6 cards from real AFCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Auto and Shop Information flashcards as text
What component converts the up-and-down motion of pistons into rotational motion?
Answer: Crankshaft
The crankshaft converts the linear motion of pistons into the rotational motion needed to drive the wheels.
What is the purpose of applying flux before soldering?
Answer: To clean the joint and prevent oxidation
Flux cleans metal surfaces of oxides and prevents new oxidation during soldering, allowing proper solder bonding.
In a four-stroke engine, what happens during the compression stroke?
Answer: The piston moves up and compresses the air-fuel mixture
During compression, the piston moves upward with both valves closed, compressing the air-fuel mixture before ignition.
What tool is used to cut threads on the outside of a cylindrical rod?
Answer: Die
A die cuts external threads on rods or bolts. A tap cuts internal threads inside holes.
What does a vehicle's differential allow the wheels to do?
Answer: Rotate at different speeds during turns
The differential allows drive wheels to rotate at different speeds during turns since the outer wheel must travel farther than the inner wheel.
What is the primary purpose of a vehicle's catalytic converter?
Answer: To reduce harmful exhaust emissions
The catalytic converter uses precious metal catalysts to convert harmful exhaust gases into less harmful substances.