ASVAB Electronics Information Practice Test 116612 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.20
Score	0%	64%

Review

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

67% Answer Correctly

	a layout
	a schematic
	a matrix
	a blueprint

Solution

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

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

	input
	collector
	base
	emitter

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 Use Ohm's Law to calculate the value of current in this circuit if voltage is 210 volts and resistance is 60 Ω.

80% Answer Correctly

	3.85 A
	5 A
	7 A
	3.5 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 = \( \frac{V}{R} \) = \( \frac{210}{60} \) = 3.5 A

The voltage output of a transformer primarily depends on which of the following?

57% Answer Correctly

	the diameter of the wire in the coils
	the diameter of the coils
	the conductor used for the wire in the coils
	the number of turns in the wire of the coils

Solution

A transformer utilizes an inductor to increase or decrease the voltage in a circuit. AC flowing in a coil wrapped around an iron core magnetizes the core causing it to produce a magnetic field. This magnetic field generates a voltage in a nearby coil of wire and, depending on the number of turns in the wire of the primary (source) and secondary coils and their proximity, voltage is induced in the secondary coil.

If an electrical circuit is interrupted, which of the following will result?

61% Answer Correctly

	closed circuit
	short circuit
	parallel circuit
	open circuit

Solution

A closed circuit is a complete loop or path that electricity follows. It consists of a source of voltage, a load, and connective conductors. If the circuit is interrupted, if a wire is disconnected or cut for example, it becomes an open circuit and no electricity will flow.