Mechanical Engineering - Thermodynamics

1. 

The atomic mass of sulphur is

A. 12
B. 14
C. 16
D. 32

Answer: Option D

Explanation:

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2. 

A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

A. -140 kJ
B. -80 kJ
C. -40 kJ
D. +60 kJ

Answer: Option D

Explanation:

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3. 

The atomic mass of an element is the number of times the atom of that element is heavier than the hydrogen atom.

A. True
B. False

Answer: Option A

Explanation:

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4. 

The mass of carbon per kg of flue gas is given by

A.
B.
C.
D.

Answer: Option A

Explanation:

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5. 

A cycle consisting of two isothermal and two isentropic processes, is known as

A. Carnot cycle
B. Stirling cycle
C. Ericsson cycle
D. Joule cycle

Answer: Option A

Explanation:

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