Electrical and Lighting System

What is the importance of building services system in relation to human comfort?

• Enhancing energy efficiency

• Improving air quality

• Increasing noise pollution

• Reducing water consumption

What is the purpose of a KWH Meter in an electrical system?

• To protect against short circuits

• To control current flow

• To regulate voltage supply

• To measure power usage and charge

What is the function of a Residual Current Circuit Breaker (RCCB) in a distribution board?

• To measure the resistance in the circuit

• To protect against earth leakage current

• To cut the main supply in case of overload

• To control the flow of electrons

What is the purpose of a Ring Circuit in a domestic electrical layout?

• To protect against short circuits

• To provide power to portable devices

• To control lighting circuits

• To distribute electricity to multiple outlets

What is the main function of a Lightning Protection System in a building?

• To enhance internet connectivity

• To regulate indoor temperature

• To prevent electrical surges

• To attract lightning strikes

What is the primary source of electromotive force in a solar cell?

• Pressure

• Magnetism

• Heat

• Light

What does Ohm's Law state about the relationship between current, voltage, and resistance?

• Current is inversely proportional to voltage

• Resistance is inversely proportional to current

• Voltage is directly proportional to resistance

• Current is directly proportional to voltage

What is the purpose of a Main Switch in a distribution board?

• To measure power consumption

• To cut off the main supply

• To regulate current flow

• To protect against voltage fluctuations

What is the function of a Miniature Circuit Breaker (MCB) in a final sub-circuit?

• To regulate voltage supply

• To measure power usage

• To control the flow of electrons

• To cut the supply in case of overload

What is the primary purpose of a Sequence Control Circuit in an electrical system?

• To protect against lightning strikes

• To distribute electricity to consumers

• To measure energy consumption

• To control the sequence of devices