LESSON ONE
Practice Exercise
The following items will test your grasp of the materials covered in this
lesson. There is only one correct answer for each item. When you have
completed the exercise, check your answers with the answer key that follows.
If you answer any item incorrectly, study that part of the lesson which
contains the portion involved.
Situation. You have been tasked to supervise maintenance personnel in the
testing, repair, and replacement of electrical systems/components. To become
proficient in that area, you have decided to increase your knowledge in the
area of automotive electricity.
1. What are the three elements of electricity?
A. Short, Voltage, and watt.
B. Current, voltage, and open circuit.
C. Resistance, amperage, and electron.
D. Voltage, current, and resistance.
2. An ohm is
A. a unit of measure of electrical resistance.
B. a unit of measure of electrical potential.
C. a material which electricity will flow through.
D. the force that causes current to flow.
3. What is a circuit breaker?
A. A device for turning lights on or off.
B. One of the three units comprising a generator regulator.
C. A warning device for instrument control.
D. A turn signal control device.
4. What is measured with an ammeter?
A. Pressure.
B. Resistance.
C. Current.
D. Potential.
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OD0611
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