Electrical Systems Quiz

What is the most common form of energy used in homes, offices, manufacturing, and construction industries?

• Gas

• Electricity

• Water

• Wind

What could cause hazards of electricity such as electric shock, burn, and damages to properties?

• Knowledge

• Ignorance

• Wisdom

• Experience

What is the function of a step-down transformer in the electrical power supply system?

• Generate electricity

• Maintain constant voltage

• Reduce voltage to a lower value

• Raise voltage to a higher value

What is the purpose of earthing in an electrical installation?

• To cause equipment damage

• To increase electric shock risk

• To prevent electric shock

• To reduce energy consumption

What is the main function of a consumer unit in a household electrical system?

• To provide lighting control

• To protect against overcurrent

• To register energy consumption

• To disconnect the circuit in case of imbalance

What is the primary purpose of a lighting circuit in a household electrical system?

• To operate high-power appliances

• To provide on/off control for lighting

• To monitor security cameras

• To control air conditioning

What type of switch is required for independent control from two positions, such as on a staircase?

• Three-way switch

• Two-way switch

• Four-way switch

• One-way switch

What is the main benefit of home automation systems?

• Longer installation time

• Integration of safety functions

• Complex handling

• Increased energy consumption

What devices are needed to be installed when transitioning to home automation systems?

• Output Actuator, PC Interface, Input Sensor

• Dimmer Relay Switch, LCD Touch Screen, Scene Master

• Motion Sensor, Dimmer Relay Switch, Output Actuator

• Dimmer Relay Switch, PC Interface, Motion Sensor

What is the purpose of good earthing in an electrical installation?

• To cause corrosion

• To protect against electric shock and damage

• To increase electrical resistance

• To carry low fault current