ASVAB Electronics Information Practice Test 684729 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.58
Score	0%	72%

Review

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

67% Answer Correctly

	a layout
	a schematic
	a matrix
	a blueprint

Solution

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

What type of current flows in only one direction in a circuit?

82% Answer Correctly

	series
	alternating
	direct
	parallel

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.

You would measure the amount of current through a circuit with a(n):

69% Answer Correctly

	potentiometer
	battery
	ammeter
	voltmeter

Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). An ammeter is used to measure the electric current in a circuit.

This circuit component symbol represents a(n):

72% Answer Correctly

	capacitor
	resistor
	inductor
	potentiometer

Solution

Resistors are used to limit voltage and/or current in a circuit and can have a fixed or variable resistance. Variable resistors (often called potentiometers or rheostats) are used when dynamic control over the voltage/current in a circuit is needed, for example, in a light dimmer or volume control.