Basic Power Units and Equipment

Which of the following controls is used to start the engine of a power unit?

• Throttle

• Clutch

• Starter button/key

• Brakes

The primary function of the throttle is to:

• Engage and disengage power to the wheels.

• Control the speed of the engine.

• Stop the power unit.

• Turn on the lights.

What is the purpose of the clutch (if present on a power unit)?

• To slow down or stop the power unit.

• To control the engine speed.

• To temporarily disconnect the engine from the transmission.

• To operate hydraulic implements.

The primary purpose of the brakes on a power unit is to:

• Control the engine speed.

• Engage implements.

• Slow down or stop the power unit.

• Turn on warning lights.

Which control is used to provide light for visibility during operation?

• Throttle

• Clutch

• Brakes

• Lights

The Power Take-Off (PTO) is used to:

• Change the gears of the power unit.

• Provide power to attached implements.

• Control the steering of the power unit.

• Operate the hydraulic system.

Hydraulic control levers/valves are primarily used to:

• Adjust the engine speed.

• Engage the PTO.

• Operate implements that use hydraulic power.

• Lock the wheels.

Which instrument indicates the pressure of the oil circulating in the engine?

• Temperature gauge

• Tachometer

• Oil pressure gauge

• Fuel gauge

The temperature gauge shows the:

• Speed of the engine in revolutions per minute (RPM).

• Amount of fuel remaining.

• Operating temperature of the engine.

• Pressure of the hydraulic system.

What does the tachometer measure?

• Engine temperature

• Engine speed (RPM)

• Fuel level

• Oil pressure