ASVAB Electronics Information Practice Test 356274 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.34
Score	0%	67%

Review

A capacitor is often used for which of the following purposes?

68% Answer Correctly

	to maintain power in a circuit when the primary power source is disconnected
	to convert alternating current into direct current
	as a primary power source
	to allow a small amount of current to control a large amount of current

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.

If an electrical circuit is interrupted, which of the following will result?

61% Answer Correctly

	open circuit
	parallel circuit
	closed circuit
	short circuit

Solution

A closed circuit is a complete loop or path that electricity follows. It consists of a source of voltage, a load, and connective conductors. If the circuit is interrupted, if a wire is disconnected or cut for example, it becomes an open circuit and no electricity will flow.

The valence shell of a conductor is how full of electrons?

52% Answer Correctly

	more than half full
	half full
	full
	less than half 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 rate of flow of electrons per unit time is which of the following?

74% Answer Correctly

	conductance
	resistance
	voltage
	current

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.

The ampere is a unit of measurement for:

79% Answer Correctly

	current
	power
	energy
	inductance

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.