ASVAB Electronics Information Practice Test 424514 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.87
Score	0%	57%

Review

Which of the following statements about electrical resistance is true?

74% Answer Correctly

	the more resistive the conductor is the slower electron flow will be
	the more resistive the conductor is the faster electron flow will be
	electrically conductive materials have no resistive properties
	the less resistive the conductor is the slower electron flow will be

Solution

Resistance is opposition to the flow of current. As resistance increases, current decreases as resistance and current are inversely proportional.

What is the frequency of most household electrical systems?

59% Answer Correctly

	110V
	60MHz
	110Hz
	60Hz

Solution

Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances. Most households use electricity with a frequency of 60Hz.

Which of the following is not a common type of battery?

40% Answer Correctly

	deep-cycle
	wet cell
	dry cell
	power-cycle

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery. The three most common types of batteries are dry cell (used in small devices like TV remotes), wet cell (used for cars), and deep-cycle (storage batteries used primarily for backup and emergency power).

Direct current flows from the __________ terminal of the voltage source to the __________ terminal.

62% Answer Correctly

	negative, negative
	positive, positive
	negative, positive
	positive, negative

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery.

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

51% Answer Correctly

	base, collector
	base, emitter
	collector, base
	collector, 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.