BSE UNIT 12 LESSON 15 Electrical Systems and Protection Quiz

What should learners be able to understand by the end of the session regarding basic and fault protection?

• The different types of electrical systems

• The meaning of basic protection and fault protection

• The cost of installing basic protection and fault protection

• The history of basic protection and fault protection

What concept related to equipotential bonding are learners expected to describe?

• The materials used for equipotential bonding

• The concept of equipotential bonding and the consequences of not having it in place

• The electrical resistance of equipotential bonding

• The color coding of wires used in equipotential bonding

What are learners supposed to explain regarding the earthing of electrical systems?

• The design of electrical earthing systems

• The manufacturers of earthing systems

• The hazards of inadequate earthing of electrical systems and appliances

• The installation process of earthing systems

How many methods of mains earthing should learners be able to demonstrate?

• One

• Two

• Three

• Four

What is known as basic protection against electric shock?

• Using rubber gloves while handling wires

• Ensuring all electrical equipment is turned off

• The four basic ways to protect a person from making direct contact with live electrical parts

• Installing circuit breakers in the electrical system

Which of the following is NOT one of the basic ways to protect a person from electric shock as mentioned in the material?

• Surrounding conductors with insulation

• Placing live parts out of reach

• Using warning signs for electrical hazards

• Placing a barrier between a person and live parts

Why can't hazards from electricity be detected by seeing or hearing?

• Because electricity is always silent and invisible

• Because electricity can only be felt when touched

• Because electricity moves too fast to be seen or heard

• Because there is no advance warning for electrical hazards

What do we classify metallic objects that form part of an electrical installation as?

• Exposed conductive parts

• Extraneous conductive parts

• Earthed parts

• Bonded parts

Metallic objects that do not form part of an electrical installation are classified as what?

• Exposed conductive parts

• Extraneous conductive parts

• Earthed parts

• Bonded parts

What is required for a metal consumer unit that is exposed?

• Bonding

• Insulation

• Earthing

• Coating