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Engineering Thermodynamics

Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

None of these
Equal to
Greater than
Less than

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Engineering Thermodynamics
If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called

Free expansion
Parabolic expansion
Adiabatic expansion
Hyperbolic expansion

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Engineering Thermodynamics
Otto cycle is also known as

Constant pressure cycle
Constant volume cycle
Constant temperature cycle
Constant temperature and pressure cycle

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Engineering Thermodynamics
Measurement of temperature is based on

First law of thermodynamics
Thermodynamic properties
Second law of thermodynamics
Zeroth law of thermodynamics

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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
+60 kJ
-40 kJ
-140 kJ

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Engineering Thermodynamics
The value of 1 mm of Hg is equal to

13.33 N/m2
133.3 N/m2
1333 N/m2
1.333 N/m2

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