FCC Technician Class Exam Study Guide - 2014-2018/Subelement T6 Group A

Electrical components: fixed and variable resistors; capacitors and inductors; fuses; switches; batteries

Question 1

 * What electrical component is used to oppose the flow of current in a DC circuit?
 * A. Inductor
 * B. Resistor
 * C. Voltmeter
 * D. Transformer

The correct answer is B.

Question 2

 * What type of component is often used as an adjustable volume control?
 * A. Fixed resistor
 * B. Power resistor
 * C. Potentiometer
 * D. Transformer

The correct answer is C.

Question 3

 * What electrical parameter is controlled by a potentiometer?
 * A. Inductance
 * B. Resistance
 * C. Capacitance
 * D. Field strength

The correct answer is B.

Question 4

 * What electrical component stores energy in an electric field?
 * A. Resistor
 * B. Capacitor
 * C. Inductor
 * D. Diode

The correct answer is B.

Question 5

 * What type of electrical component consists of two or more conductive surfaces separated by an insulator?
 * A. Resistor
 * B. Potentiometer
 * C. Oscillator
 * D. Capacitor

The correct answer is D.

Question 6

 * What type of electrical component stores energy in a magnetic field?
 * A. Resistor
 * B. Capacitor
 * C. Inductor
 * D. Diode

The correct answer is C.

Question 7

 * What electrical component is usually composed of a coil of wire?
 * A. Switch
 * B. Capacitor
 * C. Diode
 * D. Inductor

The correct answer is D.

Question 8

 * What electrical component is used to connect or disconnect electrical circuits?
 * A. Magnetron
 * B. Switch
 * C. Thermistor
 * D. All of these choices are correct

The correct answer is B.

Question 9

 * What electrical component is used to protect other circuit components from current overloads?
 * A. Fuse
 * B. Capacitor
 * C. Inductor
 * D. All of these choices are correct

The correct answer is A.

Question 10

 * Which of the following battery types is rechargeable?
 * A. Nickel-metal hydride
 * B. Lithium-ion
 * C. Lead-acid gel-cell
 * D. All of these choices are correct

The correct answer is D.

Question 11

 * Which of the following battery types is not rechargeable?
 * A. Nickel-cadmium
 * B. Carbon-zinc
 * C. Lead-acid
 * D. Lithium-ion

The correct answer is B.