ASVAB Electronics Information Practice Test 202318 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.35
Score	0%	67%

Review

1 Use Ohm's Law to calculate the value of current in this circuit if voltage is 225 volts and resistance is 90 Ω.

80% Answer Correctly

	2.5 A
	2.25 A
	7.5 A
	2.75 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 = \( \frac{V}{R} \) = \( \frac{225}{90} \) = 2.5 A

Which of the following is a characteristic of batteries connected in series?

61% Answer Correctly

	two connections are made between each adjacent battery
	total voltage equals the average of the individual battery voltages
	total voltage equals the sum of the individual battery voltages
	the positive terminal of one battery is connected to the positive terminal of the next

Solution

You can multiply the voltage or the current supplied by individual batteries by connecting them together either in series or in parallel. The characteristics of batteries connected in series are that total voltage equals the sum of the individual battery voltages, total current equals the average of the individual battery currents, the positive terminal of one battery is connected to the negative terminal of the next, and one connection is made between each adjacent battery.

One of the lights on your Christmas tree burns out and this causes the rest of the lights connected to that strand to go dark. How are the lights in that strand connected?

73% Answer Correctly

	perpendicular
	series
	parallel
	series-parallel

Solution

Lights connected in series form a chain with each light connecting to adjacent lights via one wire. Therefore, if one of the lights burns out and breaks the series, none of the other lights will receive power and they'll go dark. Lights connected in parallel each connect to the positive and negative nodes of the power source and would not go dark if one of their neighbors burnt out.

An engineer who wants to document an electric circuit would create which of the following?

67% Answer Correctly

	a schematic
	a layout
	a blueprint
	a matrix

Solution

A schematic is the proper name for a drawing of an electric or electronic circuit.

A solid state device has which of the following characteristics?

53% Answer Correctly

	made entirely from insulative material
	made entirely from semiconductor material
	made from a mix of conductive and insulative material
	made entirely from conductive 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.