ASVAB Electronics Information Practice Test 40165 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.77
Score	0%	55%

Review

The formula specifying Ohm's law is which of the following?

77% Answer Correctly

	\(V = {R \over I}\)
	V = IR
	V = I²R
	\(V = {I \over R}\)

Solution

Ohm's law specifies the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit: V = IR.

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

41% Answer Correctly

	power-cycle
	deep-cycle
	wet cell
	dry cell

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).

In electrical wiring, which of the following are proportional?

50% Answer Correctly

	the length of the wire and the amount of the current
	the diameter of the wire and the amount of the voltage
	the length of the wire and the amount of the voltage
	the diameter of the wire and the amount of the current

Solution

Current flow through a wire increases the temperature of the wire. If too small a wire is used, the wire will heat up causing a loss in conductivity and possibly a fire. The thicker in diameter a wire is, the more current it can carry without overheating.

This circuit component symbol represents a(n):

57% Answer Correctly

	DC source
	AC source
	transformer
	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.

The sum of the voltage drops across each resistor in a __________ circuit will equal the total voltage applied to the circuit.

54% Answer Correctly

	series-parallel
	series
	closed
	parallel

Solution

A series circuit has only one path for current to flow. In a series circuit, current (I) is the same throughout the circuit and is equal to the total voltage (V) applied to the circuit divided by the total resistance (R) of the loads in the circuit. The sum of the voltage drops across each resistor in the circuit will equal the total voltage applied to the circuit.