ASVAB Electronics Information Practice Test 171330 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.48
Score	0%	70%

Review

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.

2 What's the overall power consumption of a piece of equipment that is rated for 9 amps at 40 volts?

80% Answer Correctly

	355 W
	1080 W
	720 W
	360 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 9 amps (I) at 40 volts (V) so the equation becomes P = \( 40 \times 9 \) = 360 W

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

70% Answer Correctly

	multiply the current in the circuit
	limit 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.

The ampere is a unit of measurement for:

79% Answer Correctly

	inductance
	power
	current
	energy

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.

General current flow in a transistor is from __________ to __________.

51% Answer Correctly

	collector, base
	collector, emitter
	base, 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.