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Engineering Thermodynamics

Engineering Thermodynamics
The oxygen atom is ________ times heavier than the hydrogen atom.

2
8
32
16

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Engineering Thermodynamics
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

-80 kJ
-40 kJ
-140 kJ
+60 kJ

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Engineering Thermodynamics
A molecule consisting of one atom is known as

Mono-atomic
Poly-atomic
Di-atomic
Tri-atomic

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Engineering Thermodynamics
For same compression ratio and for same heat added

Efficiency depends on other factors
Both Otto and Diesel cycles are equally efficient
Otto cycle is more efficient than Diesel cycle
Diesel cycle is more efficient than Otto cycle

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Engineering Thermodynamics
To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is

Multiplied by its density
Multiplied by its molecular weight
Multiplied by its specific weight
Divided by its molecular weight

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Engineering Thermodynamics
When a system changes its state from one equilibrium state to another equilibrium state, then the path of successive states through which the system has passed, is known as

Thermodynamic law
Thermodynamic cycle
None of the listed here
Thermodynamic process

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