ACR-206 Chapter 8 Test (CRF)

Which of these mathematical statements describes Watt’s law? Select one:

• Power = Voltage × Amperage

• Power = Voltage × Resistance

• Voltage = Power × Amperage

• Voltage = Amperage / Power

According to conventional electrical theory, which way does electricity move in most commercial vehicle chassis? Select one:

• From the negative ground, through the load, then back to the battery

• From the "hot" insulated wire, through the load, then back to the battery

• From negative charge potentials to positive charge potentials

• Electrons leave the negative terminal of the battery and return through the positive post

Consider an atom with 28 protons and 29 electrons. It could be accurately described as: Select one:

• Aluminum

• Negatively charged

• Positively charged

• Anion

Consider the principle of Joules heating. Which of the following units of electrical measurement changes when amperage increases through a circuit? Select one:

• Resistance

• Voltage

• Farads

• Capacitance

Consider two objects with electrical charges. Objects A and B both repel one another. What is the polarity of the charges found on the objects? Select one:

• A is positive, B is negative.

• A and B are both positive.

• A is negative, B is positive.

• A is negative, B is neutral.

Technician A says AC circuits are used in virtually all chassis circuits because a battery can easily store and supply AC current. Technician B says DC current is used to power hybrid drive electric motors. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says AC's main advantage is that it can be transmitted farther distances with less resistance and little voltage drop. Technician B says the term resistance is used with AC circuits as well as DC circuits. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says electronic circuits use less amperage and often process electrical signals rather than perform the work of lighting, heating, and mechanical movement. Technician B says electrical circuits usually conduct higher amounts of current through heavier conductors and commonly operate high current flow devices, such as solenoids, relays, motors, lights, and more. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says metals typically have lots of easily moved electrons, which make them good conductors. Technician B says liquids cannot function as a conductor. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

Technician A says that Ohm's Law predicts increased circuit resistance as voltage increases. Technician B says Ohm's Law predicts both amperage and voltage in a circuit vary depending on circuit resistance. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B