Electricity and the industry

Instructions:

For the 23 questions:

• choose the correct answer
• write down your answer.

Note:

• You can print this document and write you answers onto it.

Question 1

The field of telecommunications is not considered part of the electrotechnology industry.

1. True.
2. False.

Question 2

Which of these occupations is not associated with the electrotechnology industry?

1. Communications technician.
2. Electrician.
3. Electrical fitter.
4. Automotive electrician.

Question 3

An electrician is required to hold the correct electrical licence to carry out certain electrical work in Australia.

1. True.
2. False.

Question 4

A person who holds an electrical work licence from a country other than Australia or New Zealand is permitted to conduct electrical work in Australia or New Zealand.

1. True.
2. False.

Information

This concludes the questions on the electricity industry. If you had difficulty answering the questions you may benefit from completing research into this area. Sources of information for your research can include: text books, internet, work colleagues, other learners or your trainer.

The next questions are about static and current electricity.

Question 5

How is static electricity created?

1. Magnetism.
2. Magnetism and movement.
3. Friction.
4. Pressure.

Question 6

If an object with a positive charge is brought near an object with a negative charge, how will the objects react?

1. They will be attracted.
2. They will be repelled.
3. There will be no attraction or repulsion.

Question 7

If an object has atoms with an excess of electrons, what type of charge will it have?

1. Positive.
2. Negative.
3. Neutral.

Question 8

An electronic component can be damaged if touched by a person who has a static charge in their body.

1. True.
2. False.

Question 9

If two objects with a negative charge are brought close to each other they will:

1. cancel each other out
2. be attracted
3. be repelled.

Question 10

What is the name of the force that acts between charged objects causing them to repel or attract?

1. Electrostatic field.
2. Current.
3. Voltage.
4. Ion field.

Question 11

Which of the following describes current electricity?

1. Movement of electrons along a wire.
2. Stationary electron charge of an object.
3. Static charge that has built up in a battery.
4. Power consumption.

Question 12

What is the unit used to measure current electricity?

1. Volt.
2. Proton.
3. Ampere.
4. Ohm.

Information

This concludes the questions on the static and current electricity. If you had difficulty answering the questions you may benefit from completing research into this area. Sources of information for your research can include: text books, internet, work colleagues, other learners or your trainer.

The next questions are about renewable and non-renewable energy.

Question 13

Which of the following is not a renewable energy source?

1. Nuclear.
2. Wind.
3. Solar.
4. Tidal.

Question 14

Which of the following renewable energy sources uses photovoltaic cells?

1. Hydro.
2. Tidal.
3. Wind.
4. Solar.

Question 15

Which of the following renewable energy sources uses heat from the Earth?

1. Solar.
2. Geothermal.
3. Biomass.
4. Hydro.

Question 16

Which one of the following renewable energy sources is the one most widely used throughout the world?

1. Hydro.
2. Tidal.
3. Wind.
4. Solar.

Question 17

Which of the following renewable energy sources uses the gravitational force of falling water?

1. Hydro.
2. Tidal.
3. Biomass.
4. Geothermal.

Question 18

Which of the following is considered to be a renewable energy source?

1. Oil.
2. Coal.
3. Natural gas.
4. Biomass.

Question 19

Where does the world get most of its power from?

1. Renewable sources.
2. Non-renewable sources.

Information

This concludes the questions on renewable and non-renewable energy. Renewable energy sources are becoming an important area of the electrotechnology industry. Understanding renewable energy could assist you in your career; it may well be our future.

If you had difficulty answering the questions you may benefit from completing research into this area. Sources of information for your research can include: text books, internet, work colleagues, other learners or your trainer.

The next questions are about electricity transmission and distribution.

Question 20

Electricity is generated at the power station and transmitted to a substation at low voltages (eg approx 230–400 volts)

1. True
2. False

Question 21

What is the name of the device used in substations to change the amount of voltage?

1. Inductor
2. Transmission line
3. Transistor
4. Transformer

Question 22

To reduce the energy lost in transmission, electricity is transmitted at what voltage?

1. High (110kV or above)
2. Low (240V)

Question 23

Overhead transmission lines are covered with an insulating material.

1. True
2. False

Information

This concludes the questions on electricity transmission and distribution. If you had difficulty answering the questions you may benefit from completing research into this area. Sources of information for your research can include: text books, the internet, work colleagues, other learners or your trainer.

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