ASVAB Electronics Information Practice Test 915063 Results

Your Results Global Average
Questions 5 5
Correct 0 3.30
Score 0% 66%

Review

1

Voltage and current are __________ proportional.

66% Answer Correctly

not

directly

inversely

indirectly
Solution

Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.

2

Using a fuse with a current rating higher than that required by a circuit:

70% Answer Correctly

makes no difference

is required

makes the circuit less safe

is recommended
Solution

A fuse is a type of low resistance resistor that stops current flow in a circuit in response to a larger than intended electric current flow. Using a fuse with a higher current rating than required by a circuit is less safe as it could potentially allow overcurrent and risk a fire or heat-related equipment damage.

3

Why does current in an electric circuit create heat?

77% Answer Correctly

the wire in the circuit burns when current passes through

voltage is naturally hot

heat is created when the current overcomes resistance in the wire

current is naturally hot
Solution

Current in an electric circuit creates heat when the current overcomes resistance in the wire.

4

The electrical potential difference between two points is called:

60% Answer Correctly

current

resistance

conductance

voltage
Solution

Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.

5

This circuit component symbol represents a(n):

57% Answer Correctly

transformer

AC source

capacitor

DC source
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.