ASVAB Electronics Information Practice Test 534315 Results

Your Results Global Average
Questions 5 5
Correct 0 3.41
Score 0% 68%

Review

1

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

67% Answer Correctly

empty

half full

less than half full

more than half full
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.

2

Capacitors are charged by what type of current?

64% Answer Correctly

alternating

low voltage

direct

high 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.

3

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

66% Answer Correctly

storage shed

safe

gate

driveway
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

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.

5

Which of these materials is not a good conductor of electricity?

79% Answer Correctly

tin

gold

air

copper
Solution

All conductors have resistance and the amount of resistance varies with the element. In general, metals make the best conductors of electricity and non-metals make the worst conductors of electricity.