407. Brayton cycle consists of following four processes
A.Two isothermals and two isentropics
B.Two isentropics and two constant volumes
C.Two isentropics, one constant volume and one constant pressure
D.Two isentropics and two constant pressures

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408. The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as
A.Dual combustion cycle
B.Diesel cycle
C.Atkinson cycle
D.Rankine cycle

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409. The efficiency of Diesel cycle with decrease in cut off
A.Increases
B.Decreases
C.Remains unaffected
D.First increases and then decreases

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410. Which of the following cycles has maximum efficiency
A.Rankine
B.Stirling
C.Carnot
D.Brayton

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411. The ideal efficiency of a Brayton cycle without regeneration with increase in pressure ratio will
A.Increase
B.Decrease
C.Remain unchanged
D.Increase/decrease depending on application

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412. The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will
A.Increase
B.Decrease
C.Remain unchanged
D.Increase/decrease depending on application

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413. The following cycle is used for air craft refrigeration
A.Brayton cycle
B.Reversed-Brayton cycle
C.Carnot cycle
D.Bell-Coleman cycle

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