E.1 Intro to Small Engines Assessment Review

What percentage of the energy released is harnessed to do useful work?

• 20%

• 30%

• 40%

• 50%

If Torque is the measure of an engine’s ability to do work, what is Horsepower a measurement of?

• Resistance in the engine during operation

• Revolutions of the engine per hour

• How fast the work can be done

• The size of the engine

If only the “Throw” of an engine crankshaft is increase, the torque will...

• Increase

• Decrease

• No change

What equipment is used to measure and engine power?

• Thermometer

• Speedometer

• Scale

• Dynamometer

How much decrease horsepower does an engine exhibit for each 1000 feet above sea level?

• 1.75%

• 2%

• 3.25%

• 3.5%

What is the maximum allowable ethanol percentage in most small engines?

• 10% or E10

• 15% or E15

• 60% or E60

• 85% or E85

What is the top blade tip speed for lawn mower according to the Consumer Product Safety Commission?

• 18,000 feet per minute

• 19,000 feet per minute

• 20,000 feet per minute

• 21,000 feet per minute

What information can be found a Material Safety Data Sheet (MSDS)?

• Precautionary information on a material's proper handling, emergency and first-aid procedures

• Scientific and chemical information

• Information regarding laboratory results in scientific trials

• Information regarding interactions with other chemicals that the material may come in contact with

Select the common PPE items (there is more than one correct answer)

• Safety glasses

• Hearing protection

• Closed toe, closed heel shoes

• Sandals

When do the transition holes help the engine run?

• RPM changes from high speed to idle

• When the engine is running at low speed

• RPM changes from idle to high speed

• When the engine is running at high speed