Recent questions in PPE

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For pressure ratio greater than the critical pressure ratio, a convergent-divergent nozzle is

asked Jan 15, 2018 in PPE by chandu (215k points)

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Match List-I (Property ratios as the critical and stagnation conditions) with List-II (Values of ratios)

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The minimum temperature of air in the reservoir should be

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The discharge rate will

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De Leval nozzle

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The velocity of steam at the outlet of a nozzle for a heat drop of 400 kJ/kg will be approximately.

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In isentropic flow between two points, the stagnation

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The Mach number of the flow will be

asked Jan 15, 2018 in PPE by chandu (215k points)

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Which one of the following diagrams depicts correctly the shape of a supersonic diffuser?

asked Jan 15, 2018 in PPE by chandu (215k points)

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The sequence of the flow conditions labeled (1), (2), (3) and (4) in the figure is respectively

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For supersaturated flow through a steam nozzle, the

asked Jan 15, 2018 in PPE by chandu (215k points)

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The critical pressure ratio for maximum discharge through a nozzle is given by

asked Jan 15, 2018 in PPE by chandu (215k points)

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In a centrifugal compressor, an increase in speed at a given pressure ratio causes

asked Jan 15, 2018 in PPE by chandu (215k points)

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Increasing order of air handling/ compressing machines based on the pressure ratios?

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The head developed is maximum for a centrifugal compressor with

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Axial flow air compressors need many stages to

asked Jan 15, 2018 in PPE by chandu (215k points)

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The performance of a single stage reciprocating air compressor is evaluated by its

asked Jan 15, 2018 in PPE by chandu (215k points)

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In a two stage reciprocating air-compressor

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For a two stage compressor

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Which one of the following methods can adopted to obtain isothermal compression in an air compressor?

asked Jan 15, 2018 in PPE by chandu (215k points)

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