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