ASVAB Electronics Information Practice Test 496411 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.17
Score	0%	63%

Review

This circuit component symbol represents a(n):

57% Answer Correctly

	AC source
	capacitor
	transformer
	DC source

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 valence shell of a conductor is how full of electrons?

52% Answer Correctly

	less than half full
	half full
	more than half full
	full

Solution

Conductors are elements that allow electrons to flow freely. Their valence shell is less than half full of electrons that are able to move easily from one atom to another.

The joule is a unit of measurement for:

67% Answer Correctly

	energy
	capacitance
	resistance
	power

Solution

The joule is a unit of measurement for energy.

Alternating current changes __________ many times each second.

72% Answer Correctly

	period
	direction
	frequency
	resistance

Solution

In contrast to the constant one-way flow of direct current, alternating current changes direction many times each second. Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances.

Using a fuse with a current rating higher than that required by a circuit:

70% Answer Correctly

	makes no difference
	is required
	makes the circuit less safe
	is recommended

Solution

A fuse is a type of low resistance resistor that stops current flow in a circuit in response to a larger than intended electric current flow. Using a fuse with a higher current rating than required by a circuit is less safe as it could potentially allow overcurrent and risk a fire or heat-related equipment damage.