Deck 3: Understanding Electricity Basics

Question 1

What are the two types of ammeters?

Answer 1

The two ammeter types are the in-line and clamp-on ammeter.

Question 2

In ____________________ current systems the current flows in one direction only.

Answer 2

direct

Question 3

_____________________ are much more accurate than voltage testers.

Answer 3

Voltmeters

Question 4

Amperage is the rate of flow of the electrons.

Question 5

____________________ is the speed at which the current reverses direction in an alternating current circuit.

Question 6

Electricity is the flow of ____________________ through a circuit.

Question 7

The rate at which an electrical load uses electrical energy or the rate at which electrical energy is produced is called ____________________.

Question 8

Nonlinear loads are load types where the load impedance is not constant.

Question 9

Voltmeters are used to determine the amount of resistance to the earth when the resistance to earth through a grounding electrode is unknown.

Question 10

Name the unit of measure for current.

Question 11

An ammeter is an instrument that measures a precise amount of voltage.

Question 12

Why is alternating current (AC) transmitted at high voltages?

Question 13

What are the three ways that PV modules or batteries can be wired together to get a desired system voltage and current?

Question 14

What voltage and phase are residential applications?

Question 15

____________________ cause distortion of the voltage and current AC waveforms.

Question 16

What is the procedure for testing a circuit with a voltmeter if the polarity is unknown?

Question 17

What is the equation that represents Ohm's Law?

Question 18

Opposition to electron flow is called resistance.

Question 19

_____________________ are designed to measure more than one electrical value.

Question 20

Many electric utility companies generate electricity by using ______________________ generators powered by coal, hydro, nuclear, natural gas, or oil.