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  Item Reference: KCLCAL-1876-1877-607

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ENGINEERING AND APPLIED SCIENCES 607 absorbed by the vessel second supposing the vessel to be of copper sp heat Ό95 weighing 135 grammes If 50 grammes of ice be then added to the mixture what will be the resulting temperature Describe Darnell's hygrometer What are the sources of error in this instrument and how are these avoided in Regnault's hygrometer Give an account of the experiments of Dr Wells on the formation of dew -fHanufacturtng 2lrt atrt iHatfyt'ncrj SECOND YEAR Sketch and describe the Cornish double-beat valve and explain its action What are its defects Sketch Watt's parallel motion Name the several part Show at what point the air-pump rod should be attached and demonstrate the principle upon which this parallel motion is based Give any other method you may know of for guiding the piston-rod of an engine Sketch the section of an indicator Show how you would apply it to horizontal engine Draw approximately the indicator figure given by an engine U9ing steam at pressure below the atmosphere Draw approximntely the indicator figure which would be given by single-acting Cornish engine using steam at 401b pressure cutting off at of the stroke the back pressure being 31b per square inch and find the power of tbe engine the remaining data necessary to the calculation being assumed by yourself Show how an engine may be reversed with single ex- centric What tests would you apply in order to compare the efficiency of one boiler with another
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