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Engineering Thermodynamics

Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

(v1 + v2)/v1
v1/v2
(v1 + v2)/v2
v2/v1

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Engineering Thermodynamics
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

Polytropic process
Adiabatic process
Hyperbolic process
Isothermal process

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Engineering Thermodynamics
The specific heat of water is

2.512
4.187
None of these
1.817

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Engineering Thermodynamics
The efficiency of a Carnot engine depends on

Design of engine
Size of engine
Temperatures of source and sink
Working substance

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Engineering Thermodynamics
Heat and work are

Path functions
System properties
Point functions
Intensive properties

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Engineering Thermodynamics
Otto cycle consists of following four processes

Two isentropic, one constant volume and one constant pressure
Two isentropic and two constant pressures
Two isentropic and two constant volumes
Two isothermal and two isentropic

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