WorksheetsAg Power CBA 4
Total questions: 20
Worksheet time: 10mins
EPA is the acronym for which of the following?
Engine Parts Assembly
Environmental Protection Agency
Emissions Per Acre
Engine Phase Act
What is the purpose of emissions systems?
To provide power to the engine
To control gas usage of the engine
To reduce internal combustion
To keep the engine running cleanly and efficiently
Phase 1 standards included a goal to reduce emissions of hydrocarbons and oxides of nitrogen by approximately what percentage?
17 percent
25 percent
32 percent
40 percent
Which of the following is NOT considered tampering?
Replacing a component of the emissions control system
Selling emissions-defeating devices
Using incorrect lubricants which lead to damage of the emissions control system
Removing an element of the emissions control system
Which of the following may prevent or limit adjustments?
Adjustment rings
Control valves
Torque systems
Limiter plugs
For proper high-speed operation, the ignition spark should occur when?
At top dead center
Five degrees after top dead center
15 to 30 degrees before top dead center
40 to 50 degrees before top dead center
What is the difference between primary and secondary circuits?
The secondary circuit has more power than the primary circuit
The primary circuit generates the spark while the secondary circuit delivers the spark to the spark plug
The primary circuit is considered low voltage while the secondary circuit is considered high voltage
The secondary circuit does not utilize a spark plug, while the primary circuit does
What is the meaning of a solid-state system?
The system remains at a constant temperature
The system produces an equal amount of power
The system has no heat range
The system has no moving parts
Larger horsepower engines require which of the following?
Spark plugs with a high heat range
Spark plugs with a low heat range
Spark plugs with a dropping heat range
Spark plugs with a secondary heat range
Which of the following is true about non-regulated charging systems?
They deliver a constant electrical output based on a constant engine speed.
They use a voltage regulator to deliver a constant amount of electricity over varying engine speeds
Are not affected by an engines RPMs
Are most common when the primary equipment has additional components associated with it
The following statements are made about governor systems: Technician A says governor systems are not necessary for engine operation, but if they are used they will protect the engine from possible failure from overspeeding. Technician B says most air-cooled engines are equipped with a governor to increase the horsepower potential of the engine. Who is correct?
Only Technician A
Only Technician B
Both Technicians A and B
Neither Technicians A and B
An electronic engine speed sensor within a governor system is connected to which of the following?
Governor
Throttle linkage
Engine control unit (ECU)
Stepper motor
Which of the following may sometimes be used as the engine speed sensor?
The engine's piston
The engine's pushrods
The engine's alternator
The engine's magneto
An engine is operating faster than the recommended speed. Technician A says one way to decrease the speed is to change the governor spring. Technician B says the stretch of the governor spring could be extended to decrease the speed. Who is correct?
Only Technician A
Only Technician B
Both Technicians A and B
Neither Technicians A nor B
Which of the following is NOT a function of the governor systems?
Protect the engine from high RPM
Utilize as little fuel as possible
Eliminate the operator's need to constantly adjust the throttle position
Maintain a safe speed under varying system loads
Which of the following may cause an engine to miss under load?
Bad fuel
Alternator adjustment
Governor linkage
Low compression
Which of the following is considered the most accurate way to test for excessive combustion area leaks?
Wet compression test
Dry compression test
Cylinder leakage test
Automatic compression release test
Which of the following measuring tools are handheld devices used to measure the thickness of valve stems and other materials?
Digital caliper
Micrometers
Feeler gauges
Dial indicator
Which of the following measuring tools are also known as "thickness gauges"?
Digital calipers
Digital indicators
Feeler gauge
Torque wrench
Which of the following measuring tools helps measure whether an object is flat, level or neither?
Telescoping gauge
Dial indicator
Torque wrench
Surface plate
