## Thermodynamics Questions and Answers – Rotary Compressor

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Rotary Compressor”. 1. Rotary compressors are used where ____ quantities of gas are needed at relatively ____ pressure. a) large, high b) large, low c) small, high d) small, low 2. Rotary compressor can be classified as a) displacement compressor b) steady-flow compressor … Read more

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## Thermodynamics Questions and Answers – Multi-Stage Compression

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Multi-Stage Compression”. 1. For minimum work, the compression should be ____ a) adiabatic b) isothermal c) isochore d) isobar 2. The temperature after compression is given by a) T2=(T1)(p2/p1)^(n/(n-1)) b) T2=(T1)(p2/p1)^((n+1)/n) c) T2=(T1)(p2/p1)^((n-1)/n) d) none of the mentioned 3. As the pressure ratio … Read more

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## Thermodynamics Questions and Answers – Volumetric Efficiency

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Volumetric Efficiency”. 1. The temperature and pressure conditions at free air delivery are a) 27 degree Celsius, 100 bar b) 15 degree Celsius, 101.325 bar c) 27 degree Celsius, 101.325 bar d) 15 degree Celsius, 100 bar 2. The volumetric efficiency is defined … Read more

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## Thermodynamics Questions and Answers – Work of Compression

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Work of Compression”. 1. A gas compression process is a) adiabatic b) involves heat transfer c) both of the mentioned d) none of the mentioned 2. If the gas is cooled during compression, work required will be ____ the adiabatic compression work. a) … Read more

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## Thermodynamics Questions and Answers – Normal Shocks

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Normal Shocks”. 1. Shock waves are highly localized irreversiblities in flow. a) true b) false 2. Normal shocks can be treated as shock waves parallel to the flow. a) true b) false 3.Within the mean free path of molecule, flow passes from a) … Read more

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## Thermodynamics Questions and Answers – One Dimensional Steady Isentropic Flow and Choking-2

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “One Dimensional Steady Isentropic Flow and Choking-2”. 1. The discharge is maximum when Mach number is a) 0 b) 1 c) 2 d) infinity 2. Which of the following relation is correct? a) (dA)/A = (M + 1)*(dV/V) b) (dA)/A = (M – … Read more

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## Thermodynamics Questions and Answers – One Dimensional Steady Isentropic Flow and Choking-1

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “One Dimensional Steady Isentropic Flow and Choking-1 “. 1. Which of the following produce continuous change in state of a flowing stream? a) wall friction b) changes in cross-sectional area c) energy effects d) all of the mentioned 2. What does a nozzle … Read more

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## Thermodynamics Questions and Answers – Velocity of Pressure Pulse in a Fluid and Stagnation Properties

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Velocity of Pressure Pulse in a Fluid and Stagnation Properties”. 1. An incompressible fluid is one for which density does not change with change in ____ a) pressure b) temperature c) velocity d) all of the mentioned 2. A compressible fluid is one … Read more

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## Thermodynamics Questions and Answers – Psychrometric Chart and Process

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometric Chart and Process”. 1. Which of the following statement is true? a) the chart is plotted for pressure equal to 760mm Hg b) the constant wbt line represents adiabatic saturation process c) the constant wbt line coincides with constant enthalpy line d) … Read more

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## Thermodynamics Questions and Answers – Properties of Atmospheric Air

This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Atmospheric Air”. 1. Dry air consists of a) oxygen, nitrogen b) carbon dioxide c) hydrogen, argon d) all of the mentioned 2. Complete dry air exists in nature. a) true b) false 3. Which of the following is true?(here pa=partial pressure … Read more

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