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Engineering Thermodynamics

Engineering Thermodynamics
The specific heat of water is

2.512
None of these
1.817
4.187

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Engineering Thermodynamics
The ratio of two specific heats of air is equal to

0.1
1.41
0.24
0.17

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Engineering Thermodynamics
The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)

1 - (T2/T1)
1 - (T1/T2)
(T1/T2) - 1
1 + (T2/T1)

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Engineering Thermodynamics
In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about

10 × 10⁵ kilo joules
100 × 10⁵ joules
10 × 10⁵ joules
1 × 10⁵ joules

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Engineering Thermodynamics
A diathermic wall is one which

Prevents thermal interaction
Encourages thermal interaction
Permits thermal interaction
Discourages thermal interaction

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Engineering Thermodynamics
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to

E/2
E/3
3E/4
2E/3

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MORE MCQ ON Engineering Thermodynamics

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