High School Lawnmower CDE Area Exam 2022-2023

This force is acting on a unit of area?

• Torque

• Pressure

• Work

• Power

When performing a cylinder leakdown test, what psi should the cylinder be pressurized to?

• 35 – 55 psi

• 60 – 80 psi

• 100 – 15 psi

• 70 – 150 psi

These are fuel limiting devices that regulate fuel flow to the emulsion tube?

• Vents

• Jets

• Circuits

• Plates

These circuits have two or more components connected so that there is only one path for current to flow are called _______?

• Parallel

• Divided

• Dedicated

• Series

Which of the following is not a detrimental effect of cutting grass too high?

• Potential for more water loss

• Coarser leaf texture

• Decrease in density

• Lower humidity levels around leaves

The number of blades affects a mower's _______?

• Cutting Height

• Cutting Speed

• Row Spacing

• Maintenance Down Time

This is the highest rated speed than an engine can achieve without a load?

• No-load

• Top no-load

• WOT

• Top Governed Speed

This is the last point at which a material can be deformed and still return to its original physical dimensions.

• Elastic Limit

• Breaking Point

• Stretch Limit

• Tensile Strength

Freeze plugs perform what function on engines?

• Function as a place for freezing coolant to be drained.

• Allow for the accumulation of ice.

• Allow the release of pressure from freezing coolant.

• Act as a secondary drain plug.

It is recommended to use this type of mower on Bahia grass, centipede grass and St. Augustine because of their extensive seed head formation.

• Reel

• Rotary

• Flail

• Chain