ASVAB Electronics Information Practice Test 102428 Results

Your Results Global Average
Questions 5 5
Correct 0 2.92
Score 0% 58%

Review

1

Inductance is a factor in which of the following?

44% Answer Correctly

an AC circuit

batteries connected in serial

a DC 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.

2

What is the voltage of most household electrical systems in the United States?

59% Answer Correctly

220V

60V

60Hz

110V
Solution

Most households use electricity with a voltage of 110V.

3 Use Ohm's Law to calculate the value of current in this circuit if voltage is 100 volts and resistance is 50 Ω.
81% Answer Correctly
3.5 A
2 A
1.8 A
3 A
Solution

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

Solved for current, I = \( \frac{V}{R} \) = \( \frac{100}{50} \) = 2 A

4

In an electronic circuit, a thermocouple can be used to:

42% Answer Correctly

open or close a circuit at a designated temperature

link the temperature of one component in the circuit to that of another component in the circuit

increase or decrease the temperature of a component in the circuit

keep the circuit at a designated safe temperature
Solution

A thermocouple is a temperature sensor that consists of two wires made from different conductors. The junction of these two wires produces a voltage based on the temperature difference between them and can be used like a switch to open or close the circuit at a designated temperature.

5

This circuit diagram represents a(n):

65% Answer Correctly

series circuit

rectifier

series-parallel circuit

parallel circuit
Solution

In a parallel circuit, each load occupies a separate parallel path in the circuit and the input voltage is fully applied to each path. Unlike a series circuit where current (I) is the same at all points in the circuit, in a parallel circuit, voltage (V) is the same across each parallel branch of the circuit but current differs in each branch depending on the load (resistance) present.