ASVAB Electronics Information Practice Test 355202 Results

Your Results Global Average
Questions 5 5
Correct 0 3.55
Score 0% 71%

Review

1 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 50 Ω and current is 9.5 amps.
85% Answer Correctly
476.5 V
1425 V
475 V
478 V
Solution

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

V = \( I \times R \) = \( 9.5 \times 50 \) = 475 V

2

The joule is a unit of measurement for:

67% Answer Correctly

energy

power

capacitance

resistance
Solution

The joule is a unit of measurement for energy.

3

Resistance is measured in:

86% Answer Correctly

ohms

coulombs

amperes

volts
Solution

Resistance is opposition to the flow of current and is measured in ohms (Ω). One ohm is defined as the amount of resistance that will allow one ampere of current to flow if one volt of voltage is applied. As resistance increases, current decreases as resistance and current are inversely proportional.

4

This circuit component symbol represents a(n):

70% Answer Correctly

fuse

capacitor

resistor

diode
Solution

Fuses are thin wires that melt when the current in a circuit exceeds a preset amount. They help prevent short circuits from damaging circuit components when an unusually large current is applied to the circuit, either through component failure or spikes in applied voltage.

5 Suppose you have 10 [9V 15A] batteries that you can connect together in series, in parallel, or in series-parallel. Which of the following voltage and ampere combinations cannot be attained using these 10 batteries?
46% Answer Correctly
180V 300A
9V 150A
45V 75A
90V 15A
Solution

Connecting the 10 batteries in series multiplies their voltage while keeping their current the same yielding a 90V 15A configuration. Connecting the 10 batteries in parallel multiplies their current while keeping their voltage the same yielding a 9V 150A configuration. Using a series-parallel connection, 5 batteries can be connected in series and 5 can be connected in parallel resulting in a 45V 75A configuration.