Lawnmower State 2020-2021

The horizontal orientation of grass foliage in one direction is called

• Windage

• Directional Layover

• Indirectional Layover

• Grain

For safety, excessively worn rotary mower blades should be:

• sharpened

• replaced

• lapped

• sharpened and lapped

The linear distance that the piston travels in the cylinder bore is called

• Travel

• Torque

• Stroke

• Compression

Engine block material transfers heat by _.

• expansion

• conduction

• transfer

• cooling

When refueling the small engine on a mower, fill the tank to approximately _ inch(es) below the top of the neck to allow for fuel expansion.

• 1/2

• 1

• 1-1/2

• 2

A _ is an engine component designed to redirect the flow of exhaust gases down and through a screen to in order to reduce the chance of fire.

• muffler

• exhaust manifold

• exhaust pipe

• spark arrester

When mowing grass, no more than _ of the top growth should be removed at each mowing.

• 1/4

• 1/3

• 1/2

• 2/3

The _ is the main structure of an engine which supports and helps maintain alignment of internal and external components.

• cylinder block

• engine block

• cylinder bore

• crankcase

Which of the following does not determine a mower's mulching ability?

• deck design

• length of discharge

• cutting chamber

• blade

_ is the stoppage of fuel flow caused by an internal pressure of a fuel vapor bubble that equals or exceeds the ambient fuel pressure.

• reformulation

• vapor lock

• atmospheric pressure

• throttle lock