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Mechanical Engineering · all questions

Engineering Thermodynamics
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A cycle consisting of two constant pressure and two isentropic processes is known as

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A cycle consisting of two adiabatic and two constant pressure processes is known as

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A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as

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A process, in which the temperature of the working substance remains constant during its expansion or compression, is called

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The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

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The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will

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Absolute zero pressure will occur

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In a free expansion process

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The ratio of two specific heats of air is equal to

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One kg of carbon produces ________ kg of carbon dioxide.

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One kg of carbon produces __________ kg of carbon dioxide.

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If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be

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The air standard efficiency of an Otto cycle is given by (where r = Compression ratio and = Ratio of specific heats)

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Work-done during adiabatic expansion is given by (where p1, v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant and = Ratio of specific heats)

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According to First law of thermodynamics,

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According to Kelvin-Planck’s statement of second law of thermodynamics,

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According to Kelvin-Planck's statement of second law of thermodynamics,

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The heat and work are mutually convertible. This statement is called __________ law of thermodynamics.

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Which of the following statement is correct according to Clausis statement of second law of thermodynamics?

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Which of the following is the correct statement of the second law of thermodynamics?

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