ASVAB Electronics Information Practice Test 326518 Results

Your Results Global Average
Questions 5 5
Correct 0 3.51
Score 0% 70%

Review

1

The farad is a unit of measurement for:

63% Answer Correctly

inductance

energy

power

capacitance
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.

2

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.

3

This circuit component symbol represents a(n):

70% Answer Correctly

resistor

diode

capacitor

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.

4

Which of the following can conduct electricity under some conditions but not others?

83% Answer Correctly

semiconductor

conductor

resistor

insulator
Solution

Semiconductors have valence shells that are exacly half full and can conduct electricity under some conditions but not others. This property makes them useful for the control of electrical current.

5

A capacitor to an electronic circuit is like a _______________ to a house?

66% Answer Correctly

safe

driveway

gate

storage shed
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.