# FCC Technician Class Exam Study Guide - 2014-2018/Subelement T5 Group A

Electrical principles, units, and terms: current and voltage; conductors and insulators; alternating and direct current

## The Question Pool

### Question 1

Electrical current is measured in which of the following units?
A. Volts
B. Watts
C. Ohms
D. Amperes

### Question 2

Electrical power is measured in which of the following units?
A. Volts
B. Watts
C. Ohms
D. Amperes

### Question 3

What is the name for the flow of electrons in an electric circuit?
A. Voltage
B. Resistance
C. Capacitance
D. Current

### Question 4

What is the name for a current that flows only in one direction?
A. Alternating current
B. Direct current
C. Normal current
D. Smooth current

### Question 5

What is the electrical term for the electromotive force (EMF) that causes electron flow?
A. Voltage
B. Ampere-hours
C. Capacitance
D. Inductance

### Question 6

How much voltage does a mobile transceiver usually require?

### Question 7

Which of the following is a good electrical conductor?
A. Glass
B. Wood
C. Copper
D. Rubber

### Question 8

Which of the following is a good electrical insulator?
A. Copper
B. Glass
C. Aluminum
D. Mercury

### Question 9

What is the name for a current that reverses direction on a regular basis?
A. Alternating current
B. Direct current
C. Circular current
D. Vertical current

### Question 10

Which term describes the rate at which electrical energy is used?
A. Resistance
B. Current
C. Power
D. Voltage

### Question 11

What is the basic unit of electromotive force?
A. The volt
B. The watt
C. The ampere
D. The ohm