Electrical Prep Test

Current flow is:

• Flow of voltage in a circuit

• The impedance of a circuit

• The inductive reactance of the circuit

• The flow of electrons in the circuit

Impedance is

• Opposition to alternate current flow

• Electrical pressure

• Amperage

• Voltage applied to the circuit

Like charges

• Attract one another

• Repel each other

• Are negative

• Are positive

Any material that will readily release electrons is called

• An insulator

• A conductor

• A resistance

• A neutron

The symbol for current is

• E

• I

• R

• W

Which of the following materials would be best suited for use as a semi conductor?

• Copper

• Bakelite

• Aluminum

• Silicon

The safety ground conductor is usually color coded

• Red or white

• Black or white

• Green or bare

• White or bare

An electron has

• No charge

• A negative charge

• A positive charge

• Neutral charge

Resistance is

• Opposition to current flow

• Electrical pressure causing voltage flow

• Enables amperage flow

• opposition to alternate current only

How many watts of power are used by a heater operating at 240 volts and drawing 5 amps?

• 5 watts

• 48 watts

• 245 watts

• 1200 watts