Question

The general temperature difference between inside and outside of a room is not more than ____________

(a) 3°C

(b) 5°C

(c) 6°C

(d) 8°C

The question was asked during an online exam.

I'm obligated to ask this question of Functional Requirements of Ventilation System in portion Acoustics and Ventilation of Construction & Building Materials

Answer 1

The correct answer is (d) 8°C

The best I can explain: The general temperature difference between inside and outside of a room is not more than 8°C. It is preferable that the incoming ventilating air should be warm in winters and cool in summers.