This question was asked inGPSC AE (Electrical) Class-2 R&B Department Paper 2025 – Series MQuestion 166 of 179 published · Gujarat Public Service CommissionOpen paper
Q287EasyBuilding Automation & ELV

Which system is considered the central 'brain' for controlling and monitoring a building's mechanical and electrical equipment such as ventilation, lighting and power systems?

Answer & step-by-step solution
Correct answer: C. Building Management System (BMS)
Quick explanation

A Building Management System (BMS) is the supervisory 'brain' used to monitor and control multiple building services such as HVAC, ventilation, lighting, pumps and electrical-energy systems through sensors, controllers and a central interface.

Sensors → controllers → communication network → BMS server/HMI → actuators

Concept & Reasoning

A BMS integrates field sensors/actuators with local controllers and supervisory software. It supports scheduling, alarm handling, trends, set-point optimization and energy management. CCTV, PA and fire alarm are specialized subsystems that may interface with a BMS but are not themselves the complete building-control platform.

How to Solve It in the Exam

Multi-service monitoring/control → BMS.

Important Exam Point

Integration does not mean the BMS replaces every dedicated life-safety controller.

Quick Trick

Multi-service monitoring/control → BMS.

Common Mistake

Choosing fire alarm because it monitors a building; its scope is life safety, not all MEP services.

Solution diagram – Which system is considered the central 'brain' for controlling and monitoring…
Exam tipIntegration does not mean the BMS replaces every dedicated life-safety controller.
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