Question

Match the following terms in Group-I with their corresponding descriptions in Group-II.

Group-I	Group-II
P - VAV	1 - Continent-ocean heat balance system
Q - DEWAT	2 - Public transportation system
R - El-Nino	3 - Intelligent air conditioning system of building
S - BRTS	4 - Water supply monitoring system
	5 - Waste water treatment system

• A. P - 3, Q - 5, R - 1, S - 2
• B. P - 2, Q - 5, R - 1, S - 3
• C. P - 3, Q - 4, R - 2, S - 5
• D. P - 1, Q - 3, R - 5, S - 2

Hint:

Expand each abbreviation first: VAV is building HVAC, DEWAT is decentralised sewage treatment, El-Nino is an ocean-atmosphere heat event, BRTS is bus transit.

Answer 1

The Correct Option is A

All four items in Group-I are technical abbreviations from building services, environmental science and urban transport. The question tests whether their expanded meaning is known well enough to match a plain description.

1. VAV (Variable Air Volume): this is an HVAC system that varies the amount of conditioned air delivered to a room to hold comfort steady, which is exactly an "intelligent air conditioning system of building".
2. DEWAT (Decentralised Wastewater Treatment): small treatment units placed near the source of sewage instead of one central plant, matching "waste water treatment system" directly.
3. El-Nino: a recurring warm phase in Pacific Ocean surface temperature that upsets the usual heat exchange between the ocean and the continents/atmosphere, matching "continent-ocean heat balance system".
4. BRTS (Bus Rapid Transit System): dedicated bus lanes and stations moving many commuters quickly through a city, matching "public transportation system".

Working through the descriptions this way gives P - 3, Q - 5, R - 1, S - 2, with "water supply monitoring system" (4) left over as it fits none of the four terms.

Let's summarize:

• VAV is a smart building air conditioning strategy; DEWAT is small-scale sewage treatment; El-Nino disturbs ocean-atmosphere heat balance; BRTS is bus-based public transport.

So the answer is P - 3, Q - 5, R - 1, S - 2, option (A).