Show:
Cylinder heads and valvetrain
engine blocks and rotating assembly
engine testing
Technician A and B
Forced induction, intake, and exhaust
100
The word used to describe how long a valve is open?
What is Valve Duration?
100

The term used to describe a new engine that only contains a block and rotating assembly

What is a short block?

100

After finding and identifying the location of  a misfire, this is the test that should be initially performed.

What is a compression test?

100

Technician A says that it is important to use a spark plug socket when removing spark plugs. Technician B says that you can use any socket of the correct size to remove spark plugs. Who is correct?

Tech A

100

Modern intake manifolds typically have gaskets made of this material.

What is Rubber?

200

The word used to describe how far the valve opens

What is valve lift?
200

The style of engine where coolant directly contacts cylinder walls.

What is a wet sleeve engine?

200

The lowest compression reading should be within this percentage of the highest compression reading.

What is 75%?

200

Technician A states that the thermostat controls coolant flow through the radiator. Technician B states that the Thermostat allows for a controlled engine warm up, who is correct?

Both A and B

200
Exhaust manifolds are typically made of one of these two materials.

what is Steel and Cast iron?

300

The tool used to measure valve clearance

What is a feeler gauge?

300

please list the steps in the 4 stroke cycle in order.

What is Intake, compression, power, and exhaust?

300
This is the specification for exhaust backpressure in psi.

0psi

300

Technician A states that a turbocharger is a way of forcing more air into the engine. Technician B states that more air in the cylinder means more fuel can be injected into the cylinder without messing up air-fuel ratio. Who is correct

Both A and B

300

This component limits boost pressure by venting exhaust gas prior to reaching the turbine

What is the Wastegate?

400

the Term used to describe the change in timing when the valves open later than normal

What is retarded?
400
A technician would do this to reduce air bubbles in the cooling system.

What is vacuum fill/bleed?

400
What test could you perform if you suspect a bad head gasket

What is a combustion leakage test?

400

Technician A states that the height of the camshaft lobe determines valve duration, while Technician B states that the height of the camshaft lobe determines valve lift. Who is correct?

Tech B

400
This component cools forced air after it has been compressed in a turbocharged system.

What is an intercooler?

500
Please list all the effects that improper timing can cause

What is

*CEL

*Backfiring

*Engine Knocking

*No start/hard start

*rough idle

*loss of compression

?

500

The primary condition that would lead to replacing the main bearings in an engine block.

What is scoring that can be felt with your fingernail?
500

Please list the steps to perform a compression test in order.

*check battery for a full charge

*disable fuel and ignition

*remove spark plugs

*install compression tester

*crank engine at WOT for at least 5 compression strokes

*record value and move on to next cylinder 

500

Two technicians are performing a compression test on a vehicle. Technician A states that a compression reading of 120psi on cylinder two likely indicates a bad piston rings. Technician B states that you must record the compression readings of the other cylinders before you can make a proper judgment on what may be causing low compression. Who is correct

Tech B

500

These two components are an optional valve that can bleed boost pressure after it has been produced

What is compressor bypass valve/blow off valve