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Question:
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Aspect ratio in the rectangular duct should be kept within _______ :
4:1
In a duct system, in which of the following case there will be more pressure drop (loss):
Abrupt expansion in the duct
Which of the following cooling methods are generally found in large commercial and industrial applications:
Both options are correct
While calculating the cooling load estimate for a house, each person is given an allowance of _____:
200 Btu
The larger the temperature difference between the evaporator surface of an air conditioning system and the air, the ___ will be the amount of mositure removed:
higher
Cooling towers are meant for conserving and reserving the water:
True
The quantity of air to be distributed to various rooms, wings or zones of the building should be in proportional to the load in the respective areas:
The ventilation requirements for a given structure or space are based on which of the following:
In which of the following more of eddys are created which results in pressure drop when the air is passed through ducts abruptly made to pass from:
small duct to larger duct
In AHU system, the aluminum fins are coated to ________ surface tension of the condensate water droplets:
Reduce
The aluminum fins are coated to ______ surface tension of the condensate water droplets:
The velocity range of the air required for comfortable cooling purposes:
35 to 50 fpm
Humidification is the removal of moisture to the air:
False
_____ is an instrument used to measure relative humidity
Psychrometer
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