ASVAB Electronics Information Practice Test 200652 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.24
Score	0%	65%

Review

Why is an insulator a poor conductor of electricity?

68% Answer Correctly

	an insulator has many free electrons
	an insulator has few free electrons
	an insulator is made of inorganic material
	an insulator is made of organic material

Solution

Insulators have valence shells that are more than half full of electrons and, as such, are tightly bound to the nucleus and difficult to move from one atom to another.

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.

Which of the following is not a terminal on a transistor?

59% Answer Correctly

	collector
	emitter
	base
	input

Solution

A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.

What is the potential difference in an electrical circuit a measure of?

58% Answer Correctly

	the load at a specific location in the circuit
	the current at a specific location in the circuit
	the resistance at a specific location in the circuit
	the voltage at a specific location in the circuit

Solution

Electrons flow from an area of high concentration to an area of low concentration. A high voltage indicates a high concentration of electrons that creates a greater potential for electron flow than a low voltage. When applied to a load, voltage creates electricity and potential difference is the measure of voltage at a specific location in an electrical circuit.

This circuit component symbol represents a(n):

57% Answer Correctly

	transformer
	DC source
	AC source
	capacitor

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.