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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for Diesel engines is

15 to 20
5 to 8
3 to 6
20 to 30

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Engineering Thermodynamics
The value of one bar (in S. I. units) is equal to

1 × 104 N/m2
1 × 103 N/m2
1 × 102 N/m2
1 × 105 N/m2

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Engineering Thermodynamics
Kelvin Planck's law deals with

Conservation of work
Conservation of heat
Conversion of work into heat
Conversion of heat into work

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Otto cycle, Diesel cycle, Dual cycle
Diesel cycle, Otto cycle, Dual cycle
Dual cycle, Otto cycle, Diesel cycle
Dual cycle, Diesel cycle, Otto cycle

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Engineering Thermodynamics
The main cause for the irreversibility is

All of these
Unrestricted expansion
Heat transfer with a finite temperature difference
Mechanical and fluid friction

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Engineering Thermodynamics
The unit of length in S.I. units is

Millimeter
Meter
Centimeter
Kilometer

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MORE MCQ ON Engineering Thermodynamics

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