Solve the Mechanical Engineering Question Paper of 2011 Engineering Services Examination.
1. Which one of the following represents open thermodynamic system ?
(a) Manual ice cream freezer
(b) Centrifugal pump
(c) Pressure cooker
(d) Bomp calorimeter
2. A thermodynamic system is considered to be an isolated one if
(a) Mass transfer and entropy change are zero
(b) Entropy change and energy transfer are zero
(c) Energy transfer and mass transfer are zero
(d) Mass transfer and volume change are zero
3. Reduced pressure is
(a) Always less than atmospheric pressure
(b) always uinty
(c) An index of molecular position of a gas
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