2022 Section 22 Ag Mechanics CDE Ag Power Test

What is the correct order of the strokes in a 4-stroke engine?

• Intake, exhaust, compression, and power

• Compression, power, exhaust, and intake

• Intake, compression, power, and exhaust

• Intake, power, compression, and exhaust

On the _________ stroke of an engine, the piston is going down, one valve is open and the other valve is closed and air and fuel are being drawn into the cylinder.

• Intake

• Exhaust

• Power

• Compression

Valves have a direct effect on:

• Compression

• Displacement

• Compression ratio

• Horsepower

When measuring the piston ring end gaps, which of the following is true?

• Leave the rings on the piston and measure the gaps

• Turn the piston upside down and push the ring into the cylinder before measuring

• Take the rings off of the piston and push them into the cylinder one at a time and measure the gap

The oil ring should be installed in the:

• Top groove

• Middle groove

• Bottom groove

• It doesn't matter

The connecting rod attaches the piston to the:

• Cylinder head

• Camshaft

• Crankshaft

• Driveshaft

Which of the following would not be found in the crankcase?

• Oil slinger

• Connecting rod cap

• Emulsion tube

• Tappets

An advantage of aluminum cylinder blocks over cast iron is:

• They have a better air to fuel ratio

• They have a better compression ratio

• They are heavier

• They are lighter weight

The flywheel shroud is used for:

• Controlling the governor

• Balancing the engine

• Cooling the engine

• Controlling the throttle

40:1 is an example of a(n) ________ ratio for a two-cycle engine.

• Compression

• Fuel to air

• Fuel to oil

• Oil to fuel