ASVAB Electronics Information Practice Test 142986 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.56
Score	0%	71%

Review

Silver and gold are among the most highly conductive elements. Why is copper used much more often as a conductor in electrical circuits?

80% Answer Correctly

	all of these
	silver and gold are costly
	silver and gold are brittle
	copper is durable and relatively cheap

Solution

All conductors have resistance and the amount of resistance varies with the element. But, resistance isn't the only consideration when choosing a conductor as the most highly conductive elements like silver and gold are also more expensive and more brittle than slightly less conductive elements like copper. A balance needs to be struck between the electrical qualities of a material and its cost and durability.

The hertz is a unit of measurement for:

81% Answer Correctly

	energy
	frequency
	power
	inductance

Solution

The hertz is a unit of measurement for frequency.

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.

This circuit component symbol represents a(n):

70% Answer Correctly

	resistor
	capacitor
	diode
	fuse

Solution

Fuses are thin wires that melt when the current in a circuit exceeds a preset amount. They help prevent short circuits from damaging circuit components when an unusually large current is applied to the circuit, either through component failure or spikes in applied voltage.

An engineer who wants to document an electric circuit would create which of the following?

67% Answer Correctly

	a blueprint
	a layout
	a schematic
	a matrix

Solution

A schematic is the proper name for a drawing of an electric or electronic circuit.