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  Item Reference: KCLCAL-1891-1892-836

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cxlvm engineering department What are the chief advantages of compression י in steam engine and shew how it affects the area of an in- dicator diagram If certain volume of saturated steam expands adiaba- tically and the weight of steam is greater at the end of the expansion than at the beginning what conclusion would you draw י jp rife rib י ht ft 10 Explain why steam jackets are put round the cylinders of steam engines 11 What is 4sensitivenessי in governor What advan- tage is there in crossing the arms of governor 12 What is the function of the fly-wheel of an engine and how does it differ from that of governor Shew by diagram the function of the fly-wheel during each portion of the stroke 13 Wherein do the laws which govern friction between dry surfaces and those between well lubricated surfaces differ from each other Give the laws for lubricated surfaces and illustrate them 14 Sketch and explain how to use Richard's Indicator and state what points must be particularly attended to in taking diagrams by it Shew how to find the from an indicator diagram FIRST YEAR What are the principal forms of Constrained Motion How may each be obtained in machine Sketch the elements by which each form of motion is constrained Distinguish between permanent and virtual centre in any 4-link mechanism and shew how the idea of virtual centres aids the study of mechanisms Sketch any 4-link mechanism and shew how to find the virtual centres for any position Mark those virtual centres which are also permanent For the same mechanism given the linear velocity of
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