Wiring Diagrams and Two-Way Switching Quiz

What is the purpose of two-way switching in lighting circuits?

• To save energy by using two switches

• To increase the brightness of the light

• To control a light from multiple locations

• To control two different lights with one switch

What type of cable is suggested for use in the described two-way lighting circuit?

• PVC twin and CPC cables

• Metallic sheathed cable

• Single-core cable

• Fiber optic cable

What colors are the conductors in a three-core and CPC cable as mentioned in the text?

• Yellow, green, and orange

• Black, white, and red

• Red, blue, and green

• Brown, black, and grey

What is the function of the CPC in the wiring diagram?

• To provide grounding

• To carry the main electrical current

• To insulate the switches

• To act as a backup conductor

What should be done to the blue conductor when it is used as a switching line?

• It should be marked with brown sleeving

• It should be connected to the neutral terminal

• It should be left unmarked for identification

• It should be insulated more than other conductors

What is the role of the common terminal in a two-way switch?

• It links the two switches together

• It connects directly to the light

• It carries the main voltage supply

• It is not used in modern circuits

How can a one-way lighting circuit be converted into a two-way lighting circuit?

• By using a higher voltage

• By installing a dimmer switch

• By replacing the light bulb with a two-way bulb

• By adding a three-core cable between two switches

What is the significance of using brown sleeving on certain conductors?

• To prevent electrical interference

• To make the wiring look more aesthetic

• To protect them from physical damage

• To identify them as live or switching lines

What does the term 'loop' refer to in the context of the wiring diagram?

• A terminal for connecting incoming and outgoing live wires

• A type of light switch

• A feedback system for energy saving

• A circular cable arrangement

What is the primary reason for using a ruler while drawing a wiring diagram?

• To measure the length of wires used

• To mark the positions of switches

• To ensure lines are straight and accurate

• To draw curved lines