Basic Electricty

How many Milliamperes will make your muscles contract ?

• 100

• 10

• 300

• 30

How many types of electricity are there ?

• 1

• 2

• 3

• 4

Answer explanation

AC alternating current and DC direct current

What did Nicola Tesla do ?

• He worked on DC voltage ?

• He worked on AC voltage ?

• He invented the car ?

• He invented the battery

What did Thomas Edison work on ?

• He worked with AC Voltage ?

• He worked with DC voltage ?

• He invented the light bulb ?

• Wind turbines

Answer explanation

Joseph Swan invented the light bulb

What voltage is in a battery ?

• AC voltage ?

• DC voltage ?

What is a consumer unit ?

• It is used to supply electricity ?

• It is a distribution board/box for electricity ?

• It is something that consumes electricity ?

• Its a meter for electricity ?

What are MCBs ?

• Massive Circuit Breakers

• Multi Circuit Breakers

• Miniature Circuit Breakers

• Miniature Current Breakers

What is the purpose of a RCD ?

• Its the same as an MBC ?

• They are devices installed within an electrical system unit to provide protection to the wiring, fixed appliances and persons using the installation.

• Its a Radiation Control device ?

• Its a small safety switch ?

What is the middle wire connected to ?

• Live ?

• Neutral ?

• Earth ?

Why do Fuses come in different colours ?

• So they can match the appliance ?

• So you can see them in a plug easier ?

• To clearly see the different ratings (amps) ?

• It's just the way they are made ?