Test

Bonding is used on aircraft to: a. increase electrical resistance. b. ensure all metal components are at the same electrical potential. c. increase generator output. d. prevent battery charging.

b

A rectifier is used to: a. convert DC to AC. b. convert AC to DC. c. increase battery capacity. d. regulate generator speed.

b

The unit of electrical current is: a. Volt. b. Watt. c. Ampere. d. Ohm.

c

A circuit breaker protects an electrical circuit against: a. excessive current. b. low temperature. c. low resistance only. d. magnetic fields.

a

The purpose of a generator cut-out is to: a. increase generator voltage. b. prevent current flowing from the battery back into the generator. c. increase battery capacity. d. reduce engine speed.

b

A transformer operates using: a. electromagnetic induction. b. chemical reaction. c. static electricity. d. mechanical friction.

a

In a series circuit, the total resistance is: a. less than the smallest resistance. b. equal to the largest resistance only. c. the sum of the individual resistances. d. always zero.

c

A static inverter converts: a. AC into DC. b. DC into AC. c. AC into AC at a different frequency. d. DC into DC.

b

The purpose of a busbar is to: a. store electrical energy. b. distribute electrical power to connected circuits. c. convert AC into DC. d. regulate battery temperature.

b

The strength of an electromagnet can be increased by: a. decreasing the current through the coil. b. increasing the current through the coil. c. removing the iron core. d. reducing the number of turns.

b