ASVAB Electronics Information Practice Test 926306 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.95
Score	0%	59%

Review

Which of the following statements about electrical resistance is true?

75% Answer Correctly

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

The conductivity of an element depends on how many electrons occupy which electron shell?

78% Answer Correctly

	first
	middle
	inner
	outer

Solution

All electricity is the movement of electrons which are subatomic particles that orbit the nucleus of an atom. Electrons occupy various energy levels called shells and how well an element enables the flow of electrons depends on how many electrons occupy its outer (valence) electron shell.

In an electronic circuit, a thermocouple can be used to:

42% Answer Correctly

	increase or decrease the temperature of a component in the circuit
	keep the circuit at a designated safe temperature
	link the temperature of one component in the circuit to that of another component in the circuit
	open or close a circuit at a designated temperature

Solution

A thermocouple is a temperature sensor that consists of two wires made from different conductors. The junction of these two wires produces a voltage based on the temperature difference between them and can be used like a switch to open or close the circuit at a designated temperature.

What is the potential difference in an electrical circuit a measure of?

58% Answer Correctly

	the load at a specific location in the circuit
	the voltage at a specific location in the circuit
	the resistance at a specific location in the circuit
	the current at a specific location in the circuit

Solution

Electrons flow from an area of high concentration to an area of low concentration. A high voltage indicates a high concentration of electrons that creates a greater potential for electron flow than a low voltage. When applied to a load, voltage creates electricity and potential difference is the measure of voltage at a specific location in an electrical circuit.

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

41% Answer Correctly

	wet cell
	power-cycle
	deep-cycle
	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).