GATE XE 2019 Paper 1 — page 31

Questions 91–93 of 175. Imported answers require review unless explicitly marked reviewed.

Addition of a reheat process to a simple Rankine cycle will always

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increase both efficiency and work output of the cycle.

increase efficiency but not necessarily work output of the cycle.

increase work output but not necessarily efficiency of the cycle.

decrease both efficiency and work output of the cycle.

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A Carnot cycle implemented using an ideal gas in a piston-cylinder system will have

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work transfer in two parts of the cycle and heat transfer in the other two parts of the cycle.

work transfer in all four parts of the cycle and heat transfer in two parts of the cycle.

work transfer in two parts of the cycle and heat transfer in all four parts of the cycle.

work transfer in all four parts of the cycle and heat transfer in all four parts of the cycle.

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The “degrees of freedom” for a pure substance at its triple point is

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2019 · Paper 1