ASVAB Electronics Information Practice Test 357622 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.41
Score	0%	68%

Review

Which of the following is not a common type of battery?

41% Answer Correctly

	deep-cycle
	wet cell
	power-cycle
	dry cell

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery. The three most common types of batteries are dry cell (used in small devices like TV remotes), wet cell (used for cars), and deep-cycle (storage batteries used primarily for backup and emergency power).

Which of these materials is not a good conductor of electricity?

79% Answer Correctly

	air
	gold
	tin
	copper

Solution

All conductors have resistance and the amount of resistance varies with the element. In general, metals make the best conductors of electricity and non-metals make the worst conductors of electricity.

3 A circuit with a 120-volt power supply is protected by a 10-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?

82% Answer Correctly

	1320 W
	1800 W
	1198 W
	1200 W

Solution

Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 10A circuit breaker would allow is 120V x 10A = 1200 W.

What is the voltage of most household electrical systems in the United States?

59% Answer Correctly

	60Hz
	110V
	60V
	220V

Solution

Most households use electricity with a voltage of 110V.

The ampere is a unit of measurement for:

79% Answer Correctly

	inductance
	power
	energy
	current

Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.