ASVAB Electronics Information Practice Test 312822 Results

Your Results Global Average
Questions 5 5
Correct 0 2.82
Score 0% 56%

Review

1

The farad is a unit of measurement for:

63% Answer Correctly

inductance

capacitance

energy

power
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

The valence shell of n insulator is how full of electrons?

56% Answer Correctly

more than half full

empty

half full

less than half full
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.

3

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.

4

Inductance is a factor in which of the following?

44% Answer Correctly

a DC circuit

batteries connected in serial

an AC circuit

determining energy stored by a capacitor
Solution

Inductance is a property of an AC circuit (or a component in an AC circuit) that quantifies resistance to changes in current. The current in an AC circuit is continuously changing and inductive reactance (the opposition to change) depends both on the inductance of the circuit or component and the rate at which the current is changing.

5

The diameter of a number 12 wire is __________ the diameter of a number 6 wire?

52% Answer Correctly

more than

double

less than

triple
Solution

The larger the number the smaller the diameter of the wire. So, the diameter of a number 12 wire is less than the diameter of a number 6 wire.