ASVAB Electronics Information Practice Test 499403 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.14
Score	0%	63%

Review

In electrical wiring, which of the following are proportional?

50% Answer Correctly

	the length of the wire and the amount of the voltage
	the diameter of the wire and the amount of the current
	the diameter of the wire and the amount of the voltage
	the length of the wire and the amount of the current

Solution

Current flow through a wire increases the temperature of the wire. If too small a wire is used, the wire will heat up causing a loss in conductivity and possibly a fire. The thicker in diameter a wire is, the more current it can carry without overheating.

Capacitors are charged by what type of current?

64% Answer Correctly

	direct
	high voltage
	alternating
	low voltage

Solution

Capacitors store voltage and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.

Current is the rate of flow of electrons per unit time and is measured in:

69% Answer Correctly

	ohms
	coulombs
	volts
	amperes

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.

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.

This circuit component symbol represents a(n):

65% Answer Correctly

	potentiometer
	capacitor
	diode
	fuse

Solution

Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.