ASVAB Electronics Information Practice Test 377254 Results

Your Results Global Average
Questions 5 5
Correct 0 3.46
Score 0% 69%

Review

1

Which of the following is not a purpose of a resistor in an electrical circuit?

70% Answer Correctly

control the voltage in the circuit

multiply the current in the circuit

limit the current in the circuit

moderate the heat in the circuit
Solution

Resistors can be chosen in a wide variety of values to control the voltage in a circuit, limit the current, or moderate the heat produced by the components in the circuit.

2

This circuit component symbol represents a(n):

66% Answer Correctly

transformer

DC source

AC source

transistor
Solution

In contrast to the constant one-way flow of direct current, alternating current changes direction many times each second. Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances.

3

The electrical potential difference between two points is called:

60% Answer Correctly

voltage

conductance

resistance

current
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.

4

A diode to an electronic circuit is like a _______________ to a city?

67% Answer Correctly

traffic light

one-way street

parking lot

highway
Solution

A diode allows current to pass easily in one direction and blocks current in the other direction.

5 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 60 Ω and current is 6.5 amps.
85% Answer Correctly
195 V
390 V
585 V
780 V
Solution

Ohm's law specifies the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit: V = IR.

V = \( I \times R \) = \( 6.5 \times 60 \) = 390 V