ASVAB Electronics Information Practice Test 323196 Results

Your Results Global Average
Questions 5 5
Correct 0 3.52
Score 0% 70%

Review

1

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

52% Answer Correctly

half full

less than half full

more than half full

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.

2

You would measure the amount of resistance at a certain point in a circuit with a(n):

78% Answer Correctly

ammeter

potentiometer

voltmeter

ohmmeter
Solution

Resistance is opposition to the flow of current and is measured in ohms (Ω). An ohmmeter is used to measure the amount of resistance at a certain point in a circuit.

3

What type of current flows in only one direction in a circuit?

82% Answer Correctly

alternating

parallel

direct

series
Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery.

4

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.

5

Which of the following statements about electrical resistance is true?

75% Answer Correctly

the less resistive the conductor is the slower electron flow will be

the more resistive the conductor is the faster electron flow will be

the more resistive the conductor is the slower electron flow will be

electrically conductive materials have no resistive properties
Solution

Resistance is opposition to the flow of current. As resistance increases, current decreases as resistance and current are inversely proportional.