KEY - 2023 Small Engines District Test

An engine is a machine that converts a form of energy into mechanical force.

• True

• False

A pneumatic governor system uses a gear assembly that meshes with the camshaft or other components to regulate engine speed.

• True

• False

Carbon monoxide is slightly heavier than air.

• True

• False

Materials that do not conduct electricity are known as insulators and include plastic, rubber, paper and air.

• True

• False

Head gaskets are made from hard metals and graphite layered together.

• True

• False

With the maturing work force and a growing list of new products & technology in the small engine industry, the need for qualified service technicians is expected to grow. The need for trained service technicians is the number one issue facing the small engine industry. Competent service technicians are needed for meeting the needs of a service network.

• the need for qualified service technicians is expected to grow.

• the need for trained service technicians is the number one issue facing the small engine industry.

• competent service technicians are needed for meeting the needs of a service network.

• all of the above.

Horsepower is a unit of power equal to ___.

• 497 W or 22,000 lb-ft/min

• 725 W or 25,000 lb-ft/min

• 746 W or 33,000 lb-ft/min

• 750 W or 33,190 lb-ft/min

___ requires only enough force to accomplish the desired task.

• Work

• Torque

• Power

• Voltage

The Occupational Safety and Health Administration is a federal agency that requires all employers to provide a(n) environment for their employees.

• Safe
• Inviting

• Contemporary

• Peaceful

Approximately % of the energy released when fuel is oxidized in a typical small engine is converted into useful work.

• 50%

• 30
• 90%

• 30%