ASVAB Electronics Information Practice Test 3999 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.90
Score	0%	58%

Review

You would measure the amount of voltage between two points in a circuit with a(n):

83% Answer Correctly

	ammeter
	voltmeter
	reostat
	battery

Solution

Voltage (V) is the electrical potential difference between two points. A voltmeter is used to measure the voltage between two points in a circuit.

Which of the following is not true about a line drop?

43% Answer Correctly

	it is addressed by raising voltage and lowering current across the transmission line
	it is caused by resistance
	it is addressed by raising current and lowering voltage across the ransmission line
	it is a decrease in voltage between two points on a line

Solution

Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances. A line drop is a decrease in voltage between two points on an electrical transmission line due to resistance in the line. A lower current and higher voltage across the line will help compensate for the line drop.

This circuit component symbol represents a(n):

57% Answer Correctly

	DC source
	transformer
	AC source
	capacitor

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.

A capacitor to an electronic circuit is like a _______________ to a house?

66% Answer Correctly

	safe
	gate
	storage shed
	driveway

Solution

Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.

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

41% Answer Correctly

	dry cell
	wet cell
	deep-cycle
	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).