Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 5 (Q.No. 30)
30.
Which of the following is the correct statement?
All the reversible engines have the same efficiency.
All the reversible and irreversible engines have the same efficiency.
Irreversible engines have maximum efficiency.
All engines are designed as reversible in order to obtain maximum efficiency.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
36 comments Page 2 of 4.

Gaurav said:   1 decade ago
A corollary to Carnot's theorem states that: All reversible engines operating between the same heat reservoirs are equally efficient.

Manoj said:   8 years ago
@ALL.

There is no any engine based on the reversible cycle.

The Reversible cycle is there but no reversible engine is there.

Pankaj said:   5 years ago
A will not be right because at the different temperature limit efficiency will be different. So the right answer is d.

Bswjt said:   9 years ago
Reversible engines have higher efficiency as Carnot cycle is the reversible cycle and it has maximum efficiency.

Moin said:   4 years ago
Option A is Wrong because efficiency is same for the temperature limit.

So, Option D is the Right answer.
(2)

Kanji dodiya said:   9 years ago
I think it is option d) All engines are designed as reversible in order to obtain maximum efficiency.

Anand singh said:   8 years ago
Correct answer is (A) Because always revertible engines are more efficient then irreversible engines.

Manish ambesh said:   7 years ago
Answer A is right. All reversible engine working under a same temperature maximum efficiency.

Pawan singh said:   1 decade ago
No engine have more efficiency than carnot cycle and it base on reversible process.

Fasil said:   7 years ago
The reversible engine follows the carnot cycle. So it has max Efficiency.


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