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Electrical Concepts Quiz

Total questions: 55

Worksheet time: 28mins

Name
Class
Date
1.

What is the "Volt"

a)

Power

b)

Current Flow

c)

Electromotive Force/ Electric pressure

d)

Resistance

2.

What is the unit used to measure the amount of pressure

a)

Ohm

b)

Volt

c)

Watt

d)

Amp

3.

Handheld Voltmeters are used for reading Voltages up to _____

a)

480

b)

7200

c)

240

d)

12470

4.

Transmission lines do not carry a neutral conductor

a)

True

b)

False

5.

A coulomb is a quantity measurement of ______

a)

Voltage

b)

Amperes

c)

Watts

d)

Electrons

6.

The Amp is defined as __ coulomb(s) per seco

a)

1

b)

2

c)

3

d)

4

7.

The Speed of current is equal to the speed of _____

a)

Sound

b)

Light

8.

Building wire in copper strands can increase the amperage rating of a wire

a)

True

b)

False

9.

The Ohm is a unit of electrical ______

a)

Power

b)

Force

c)

Resistance

d)

Current

10.

When resistance is high in a conductor, greater friction is created

a)

True

b)

False

11.

The Watt is a unit of electrical ______

a)

Power

b)

Force

c)

Current

d)

Resistance

12.

One horsepower is equal to ____ Watts

a)

500

b)

746

c)

1.732

d)

647

13.

What is the Power Formula

a)

P=I*E

b)

E=I*R

14.

What is Ohms Law?

a)

E=I*R

b)

P=I*E

15.

Electricity is generated at a range of ________-______kv

a)

7.2-12.4kv

b)

38-69kv

c)

72-115kv

d)

13.8-24kv

16.

What is interconnected and referred to as the grid?

a)

Distribution

b)

Generation

c)

Transmission

d)

Substations

17.

Transmission systems move large quantities of power over long distances at high voltages

a)

True

b)

False

18.

______ systems are most commonly energized at 44kv, 69kv, 115kv, and 138kv

a)

Transmission

b)

Sub transmission

c)

Generating facilities

d)

Distribution

19.

High pressure steam can reach levels ranging from _____-______ in generation stations

a)

2400-3500 PSI

b)

2000-3000 PSI

c)

2500-3400 PSI

d)

3400-4500 PSI

20.

In many cases, the heat from the steam is captured for another useful purpose such as heating. What is this called?

a)

Combined cycle

b)

Innovation

c)

Cogeneration

d)

combined heat and power

21.

Which of these is Natural Gas NOT formed from?

a)

Buried Plants

b)

Other Gases

c)

Animals

d)

Coal

22.

When the hot exhaust from the natural gas turbine spins another steam turbine connected to another generator.

a)

Cogeneration

b)

Combined heat and power

c)

Combined Cycle

d)

Innovation

23.

About __% of electrical energy is produced with nuclear generation

a)

20%

b)

30%

c)

25%

d)

15%

24.

This type of generating facility uses geysers or hot springs to produce heat.

a)

Nuclear

b)

Solar

c)

Natural Gas

d)

Geothermal

25.

(Solar Generation)Harnesses the heat energy from the sun to heat up salt to a molten state

a)

Parabolic Trough

b)

Photovoltaic

26.

Uses Woodchips, sugarcane, switch grass, ETC... to heat up a boiler

a)

Biomass

b)

Hydroelectric

c)

Natural gas

d)

Solar

27.

Type of generation facility that uses water to spin a turbine, connected to a generator.

a)

Natural Gas

b)

Hydroelectric

c)

Biomass

d)

Coal-fir

28.

Wind generation is one of the slowest growing methods of producing electricity

a)

True

b)

False

29.

What type of generation is considered small scale and located at the point of consumption?

a)

Solar Genertaion

b)

Hydroelectric Generation

c)

Distributed Generation

d)

Wind Generation

30.

Popular for back-up power in facilities where power is used around the clock, such as hospitals. (Diesel fuel)

a)

Microgeneration

b)

Combustion Engine

c)

Solar Energy

d)

Wind Generation

31.

Energy can be converted but it cannot be created or destroyed.

a)

True

b)

False

32.

The law of charges states

a)

Like Charges Repel

b)

Like Charges Attract

c)

Opposite Charges Repel

d)

Opposite charges attract

33.

In AC circuits, the terms positive and negative refer to the direction of current flow

a)

True

b)

False

34.

In AC circuits, the terms positive and negative refer to the direction of current

a)

True

b)

False

35.

Which of these does the strength of voltage to be produced NOT depend on?

a)

The Number Of turns in the coil of wire

b)

The Strength of the magnetic fie

c)

The size of the wire

d)

The speed at which magnetic lines of flux pass through the co

36.

A Sine Wave represents what is happening in an __ circuit over a period of time.

a)

AC

b)

DC

37.

The frequency of power in the US and Canada is __ Hz

a)

50

b)

60

c)

65

d)

70

38.

One complete rotation of the generator is referred to as a ______

a)

Rotation

b)

Full Turn

c)

Cycle

d)

Hertz

39.

How many times does a Sine Wave hit Zero in a cycle

a)

1

b)

2

c)

3

d)

4

40.

RMS is the effective value of the voltage

a)

True

b)

False

41.

The maximum voltage of the sine wave

a)

Peak

b)

RMS

c)

0.707

d)

E(inst)

42.

If Voltage and Current rise and fall at the same time, they are _______

a)

Out of Phase

b)

In Phase

43.

Which is not one of the three types of load?

a)

Conductive (Phase)

b)

Resistive (In Phase)

c)

Inductive (Out of Phase)

d)

Capacitive (Out Of Phase)

44.

Which of these in not one of the three major functions of a substation?

a)

Change the voltage of circuits from one level to another

b)

Interconnect the world with the grid

c)

Connect or disconnect lines or equipment from each other

d)

Control the flow of power by adjusting voltage and curre

45.

69kv to 12kv describes what substation?

a)

Subtransmission

b)

Distribution

c)

Transmission

d)

Generation

46.

What's a power transformers purpose?

a)

Change Voltage from one level to another

b)

Change current from one level to another

c)

Change resistance from one level to another

d)

Change Wattage from one level to another

47.

What do Circuit Breakers do?

a)

Disconnect lines and equipment

b)

Isolate lines and equipment to be worked on

c)

Reroute Power

48.

What is used when a power transformer doesn't have a Load Tap Changer?

a)

Circuit Breaker

b)

Recloser

c)

Voltage Regulators

d)

Disconnect Switches

49.

What is a critical element in mitigating hazards to workers and the public?

a)

Ground Grid

b)

Control House

c)

Steel Structures

d)

Fences

50.

The main objective for all transmission lines is to deliver power with a minimal loss of power

a)

True

b)

False

51.

Tubular poles are less aesthetically pleasing and have a shorter lifespan compared to wooden poles

a)

True

b)

False

52.

Lattice-Type Steel towers are generally the choice for ___kv lines and above

a)

345kv

b)

500kv

c)

765kv

d)

230kv

53.

What is true about Polymer insulators

a)

Heavier than porcelain

b)

Don't get used often

c)

Aren't preferred

d)

There has been a continuing trend toward them the last 20 years

54.

What do shield wires do?

a)

Provide a path to ground for lightning surges

b)

Provide a secondary voltage

c)

Protect the line from birds

d)

For aesthetics

55.

Main lines will have larger conductors than Tap lines and supply power to the tap lines

a)

True

b)

False

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