ASVAB Electronics Information Practice Test 756056 Results

Your Results Global Average
Questions 5 5
Correct 0 3.62
Score 0% 72%

Review

1

Current is the rate of flow of electrons per unit time and is measured in:

69% Answer Correctly

volts

amperes

ohms

coulombs
Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.

2 What's the overall power consumption of a piece of equipment that is rated for 2 amps at 80 volts?
92% Answer Correctly
320 W
480 W
160 W
152 W
Solution
Power is measured in watts (W) and 1 watt equals 1 ampere multiplied by 1 volt: P = \( V \times I \). For this problem, the equipment is rated for 2 amps (I) at 80 volts (V) so the equation becomes P = \( 80 \times 2 \) = 160 W
3

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

59% Answer Correctly

60Hz

110V

60V

220V
Solution

Most households use electricity with a voltage of 110V.

4

The most common circuit configuration is:

58% Answer Correctly

parallel

series-parallel

household

series
Solution

Circuits are not limited to only series or only parallel configurations. Most circuits contain a mix of series and parallel segments. A good example is a household circuit breaker. Electrical outlets in each section of the house are wired in parallel with the circuit breaker for that section wired in series making it easy to cut off electricity to the parallel parts of the circuit when needed.

5

Which of the following will help to prevent a short circuit?

74% Answer Correctly

transistor

fuse

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.