ASVAB Auto And Shop Information Questions And Answers Well Illustrated.
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ASVAB Auto and Shop information
Institution
ASVAB Auto And Shop Information
ASVAB Auto And Shop Information Questions And Answers Well Illustrated.
Mixture of Gas and Air
(the fuel mixture) - correct answer. What does the Internal Combustion engine burn?
1. Intake
2. Compression
3. Power
4. Exhaust - correct answer. What are the 4 strokes that...
ASVAB Auto And Shop Information
Questions And Answers Well Illustrated.
Mixture of Gas and Air
(the fuel mixture) - correct answer. What does the Internal Combustion engine burn?
1. Intake
2. Compression
3. Power
4. Exhaust - correct answer. What are the 4 strokes that make up a cycle?
(in car engine)
Intake - correct answer. This valve opens as the connecting rod pulls the piston
down, drawing the gas/air mix into the cylinder
Compression - correct answer. The valves are closed. The connecting rod pushes
the piston up, compressing gas/air mix
Power - correct answer. The spar plug ignites the gas/air mix, forcing the piston
down. That pushes down on the connecting rod, turning the crankshaft; the crankshaft
turns the flywheel, which keeps the engine going
Exhaust - correct answer. The ___ valve opens as the connecting rod moves the
piston back up, pushing out the exploded gases. The valves are times, of course, using
pus rods attached to the camshaft.
Inline - correct answer. The name for cylinders that are arranged in one row
V - correct answer. The name for cylinders that are arranged in two rows
Four-stroke, one-cycle engine - correct answer. Most people refer to engines as
four-cycle engines but this is false; what are they really called?
Tachometer - correct answer. Instrument in a vehicle the measures revolutions per
minute; rpm
, (e.g. when this displays 4,800 rpm, that means the engine is performing 4,800 cycles
every minute)
Fuel must be properly mixed with air and transported within the cylinder at the proper
time - correct answer. What must happen in order for the cycle to happen at all?
Carburetors - correct answer. ___ are used (pre 1990) to mix the fuel and air
mechanically. As air moves quickly through this, it creates a vacuum, which draws more
and more fuel into the mixture
Fuel Injectors - correct answer. ___ have replaced carburetors on newer cars to
perform the air/fuel mixture function.
Fuel Injector - correct answer. The ___ acts as the fuel-dispensing nozzle. It injects
liquid fuel directly in to the engine's air stream.
(In almost all cases it requires an external pump)
Determines the amount of fuel entering the engine: receives information from the
sensors in the fuel, air, and exhaust system, and from that information, it determines
how much fuel the engine needs to operate at optimum levels - correct answer.
What does the EFI computer do?
Throttle - correct answer. ___ is mechanically connected to the carburetor
OR
___ is electronically connected to the EFI computer
Advancing (opening) the throttle causes more fuel to be transferred to the carburetor or
the fuel injectors. The accelerator (gas pedal) is connected to the throttle by mechanical
linkages. The harder you push on the gas pedal, the farther the throttle is advanced
(opened). Thus, more fuel is transported to the carburetor or fuel injectors. - correct
answer. What does a Throttle do?
Cooling system - correct answer. What does the engine have because of the high
temperature at which fuel burns?
Water Jackets
Water Pump
Radiator - correct answer. What are the 3 components of the engine's cooling
system?
Water jackets - correct answer. These surround the parts of the engine that reach
the highest temperatures
(engine cooling system)
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