Automotive Information Test Flashcards
6 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Automotive Information Test flashcards as text
What is the primary function of an alternator in a vehicle?
Answer: Convert mechanical energy to electrical energy
The alternator converts mechanical energy from the engine into electrical energy to power the vehicle's electrical systems and recharge the battery while the engine is running.
Which type of oil viscosity rating is best suited for cold-climate operation?
Answer: 5W-30
5W-30 oil has a lower cold-temperature viscosity rating (the '5W'), meaning it flows more easily when cold, making it ideal for cold-climate operation and easier cold starts.
What does the 'TDC' marking on an engine mean?
Answer: Top Dead Center
TDC stands for Top Dead Center, which is the position of a piston at the very top of its stroke in the cylinder, where it has reached its highest point of travel.
What is the purpose of a vehicle's catalytic converter?
Answer: Reduce harmful exhaust emissions
A catalytic converter reduces harmful exhaust emissions by using chemical reactions to convert toxic pollutants like carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful substances.
What system in a modern vehicle prevents wheels from locking up during hard braking?
Answer: Anti-lock Braking System (ABS)
The Anti-lock Braking System (ABS) prevents wheels from locking up during hard braking by rapidly modulating brake pressure, allowing the driver to maintain steering control.
Which component is responsible for mixing air and fuel in older carbureted engines?
Answer: Carburetor
The carburetor mixes air and fuel in the correct ratio for combustion in older gasoline engines, using the Venturi effect to draw fuel into the incoming air stream.