Recent questions in IES Objectives-1

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When a system undergoes a process such that

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Which one on the following temperature entropy diagrams of

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The throttling process undergone by a gas across an orifice is shown

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Which one of the following statements applicable to a perfect gas will also be

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Same cycle on temperature – entropy diagram will be represented by

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

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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

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

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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?

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The reduction in mass output of the machine is

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Reversible and adiabatic

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The ratio of static enthalpy rise in the rotor to the static enthalpy rise

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

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In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at

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The specific speed of a centrifugal compressor is generally

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For a centrifugal compressor with radial vanes, slip factor is the ratio of

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