ASVAB Electronics Information Practice Test 945889 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.30
Score	0%	66%

Review

Using a fuse with a current rating higher than that required by a circuit:

70% Answer Correctly

	is recommended
	makes no difference
	is required
	makes the circuit less safe

Solution

A fuse is a type of low resistance resistor that stops current flow in a circuit in response to a larger than intended electric current flow. Using a fuse with a higher current rating than required by a circuit is less safe as it could potentially allow overcurrent and risk a fire or heat-related equipment damage.

Which of the following allows DC to pass easily but resists the flow of AC?

55% Answer Correctly

	capacitor
	transformer
	semiconductor
	inductor

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.

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

67% Answer Correctly

	a schematic
	a matrix
	a blueprint
	a layout

Solution

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

You would measure the amount of current through a circuit with a(n):

68% Answer Correctly

	ammeter
	voltmeter
	potentiometer
	battery

Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). An ammeter is used to measure the electric current in a circuit.

Which of the following is not a purpose of a resistor in an electrical circuit?

70% Answer Correctly

	limit the current in the circuit
	multiply the current in the circuit
	control the voltage in the circuit
	moderate the heat in the circuit

Solution

Resistors can be chosen in a wide variety of values to control the voltage in a circuit, limit the current, or moderate the heat produced by the components in the circuit.