Indoor design conditions for air – conditioning system for energy conservation are

Question

Consider the following statements

            Indoor design conditions for air – conditioning system for energy conservation are

            1. The lowest condition of temperature relative humidity and maximum air velocity are 20⁰C, 25%

and 10 m/min respectively.

            2. The maximum condition in summer is 25⁰C, 55% and 15 m/min

            3. When the building is not occupied during night the temperature may be lowered in winter and

increased in summer.

            Which of these statements is/are correct?

            (a) 1, 2 and 3               (b) 1 and 2 only           (c) 2 and 3 only           (d) 3 only

Answer 1

C is the answer I think