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ASVAB Auto and Shop information. Exam Questions With Correct Answers
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ASVAB Auto and Shop information. Exam Questions With Correct Answers Mixture of Gas and Air (the fuel mixture) - answerWhat does the Internal Combustion engine burn? 1. Intake 2. Compression 3. Power 4. Exhaust - answerWhat are the 4 strokes that make up a cycle? (in car engine) Intake - a...

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  • November 11, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • asvab auto and shop information exam questions wi

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  • ASVAB
  • ASVAB

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©THEBRIGHT EXAM SOLUTIONS

11/05/2024 1:06 AM


ASVAB Auto and Shop information. Exam
Questions With Correct Answers


Mixture of Gas and Air

(the fuel mixture) - answer✔What does the Internal Combustion engine burn?

1. Intake

2. Compression

3. Power

4. Exhaust - answer✔What are the 4 strokes that make up a cycle?

(in car engine)

Intake - answer✔This valve opens as the connecting rod pulls the piston down, drawing the gas/air mix
into the cylinder

Compression - answer✔The valves are closed. The connecting rod pushes the piston up, compressing
gas/air mix

Power - 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 - 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 - answer✔The name for cylinders that are arranged in one row

V - answer✔The name for cylinders that are arranged in two rows

Four-stroke, one-cycle engine - answer✔Most people refer to engines as four-cycle engines but this is
false; what are they really called?

Tachometer - 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)

, ©THEBRIGHT EXAM SOLUTIONS

11/05/2024 1:06 AM

Fuel must be properly mixed with air and transported within the cylinder at the proper time -
answer✔What must happen in order for the cycle to happen at all?

Carburetors - 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 - answer✔___ have replaced carburetors on newer cars to perform the air/fuel mixture
function.

Fuel Injector - 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)

Electronic Fuel Injection computer - answer✔EFI computer stands for ___?

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 - answer✔What does the EFI computer do?

Throttle - 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. - answer✔What does a Throttle do?

Cooling system - answer✔What does the engine have because of the high temperature at which fuel
burns?

Water Jackets

Water Pump

Radiator - answer✔What are the 3 components of the engine's cooling system?

Water jackets - answer✔These surround the parts of the engine that reach the highest temperatures

(engine cooling system)

Water Pump - answer✔This circulates water through the water jackets

(engine cooling system)

Radiator - answer✔(engine cooling system)

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