ASVAB Electronics Information Practice Test 108254 Results

Your Results Global Average
Questions 5 5
Correct 0 2.79
Score 0% 56%

Review

1

A solid state device has which of the following characteristics?

53% Answer Correctly

made entirely from conductive material

made entirely from insulative material

made entirely from semiconductor material

made from a mix of conductive and insulative material


Solution

The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.


2

A transistor works by allowing a small amount of current to control general current flow. Where is the small amount of current applied?

55% Answer Correctly

base

emitter

input

collector


Solution

The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.


3

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

59% Answer Correctly

110V

60V

60Hz

220V


Solution

Most households use electricity with a voltage of 110V.


4

This circuit component symbol represents a(n):

60% Answer Correctly

resistor

inductor

transformer

capacitor


Solution

An inductor is coiled wire that stores electric energy in the form of magnetic energy and resists changes in the electric current flowing through it. If current is increasing, the inductor produces a voltage that slows the increase and, if current is decreasing, the magnetic energy in the coil opposes the decrease to keep the current flowing longer. In contrast to capacitors, inductors allow DC to pass easily but resist the flow of AC.


5 How would you connect 8 [12V 20A] batteries to achieve a combined power output of 12V 160A?
52% Answer Correctly
series
orthogonal
series-parallel
parallel

Solution

Connecting the 8 batteries in series multiplies their voltage while keeping their current the same yielding a 96V 20A configuration. Connecting the 8 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 12V 160A configuration. Using a series-parallel connection, 4 batteries can be connected in series and 4 can be connected in parallel resulting in a 48V 80A configuration.