A room is mechanically ventilated through four air-conditioning ducts. The opening area of each duct is 0.35 sqm. The air velocity in the duct is 0.5 m/s. The temperature difference between the ambient air and supply air is 10 C. Volumetric specific heat of air is 1250 J/m C. Assuming one Ton of refrigerat ion (TR) equals 3.5 kW, the cooling load of the room in TR will be _____________

A room is mechanically ventilated through four air-conditioning ducts.

1.	A room is mechanically ventilated through four air-conditioning ducts. The opening area of each duct is 0.35 sqm. The air velocity in the duct is 0.5 m/s. The temperature difference between the ambient air and supply air is 10 C. Volumetric specific heat of air is 1250 J/m C. Assuming one Ton of refrigerat ion (TR) equals 3.5 kW, the cooling load of the room in TR will be _____________
A.	3.75 : 4.55
B.	5.65 : 6.75
C.	9.65 : 10.95
D.	2.45 : 2.55
Answer» E.