Lawnmower HS Area 22-23

This force is acting on a unit of area

• torque

• pressure

• work

• power

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

• 35-55 psi

• 60-80 psi

• 100-115 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

• 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

The highest rated speed that an engine can achieve without a load

• no-load

• top no-load

• WOT

• Top Governed Speed

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