Air conditioning Engineering
Previous year question paper with solutions for Air conditioning Engineering
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- For saturated air, Wet bulb depression is________.(zero/one)
- The high concentration of people generally produces a low _______heat factor.(sensible/latent)
- The curve lines on the psychrometric chart indicate ______humidity.(Specific/Relative)
- The vapour pressure during sensible heating of air_________.(remains constant/increases)
- Metabolic heat production in a weak, sick or fasting man will be_______.(less/more)
- A _______ controls the volume of air flow by varying the cross sectional area in a duct.(damper/diffuser)
- The heat production from a normal healthy man when asleep is about_______ watts. (60/40)
- The relative humidity during heating and humidification ________. (decreases/increases)
- The recommended outside air required per person in a meeting room is ________m3 /min. (1.5/1.2)
- On the psychrometric chart, the alignment circle is marked at 25O C DBT and ________humidity. (40/50)
- For winter air conditioning relative humidity should not be more than_______ (40%/60%)
- The efficiency of a coil will be _______when its by pass factor is zero. (one/zero)
- A low wet bulb temperature indicates very ______humidity.(high/low)
- During sensible cooling, the specific humidity of the moist air ________.(remains constant/increases)
- The high concentration of people generally produces a_______ sensible heat factor.(low/high)
- The people seated as rest require a_______ effective temperature than the people doing heavy physical activity.(higher/lower)
- The sensible heat factor for an auditorium or cinema is generally kept as_______. (0.7/0.8)
- The heat energy dissipated/watt in incandescent light is ________. (7.96KJ/10.96KJ)
- From appearance point of view, the shape of the duct preferred as ________. (rectangular/square)
- The difference between dry bulb temperature and dew point temperature is________. (dry bulb depression/dew point depression)
- An opening through which air is supplied to treated space is called ………………
- The methods of sizing the ducts are ……………….., ………………. and ………………….
- ………….is a grill provided with a damper.
- For air conditioning the cooling load may be classified as…..….load and ………load.
- ………………..is a material that offers resistance to the flow of heat through it.
- 1.5 TON air conditioner removes heat …………...Kcal/Hr.
- Deflecting vane anemometer is also called ………..
- …………is defined as an unwanted sound.
- ……….fan produces a flow of air in a direction parallel to the axis of rotation
- The art of measuring the moisture content in air is termed as…………