Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 43)
43.
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
zero
1/5
4/5
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 2 of 3.

Waseem said:   8 years ago
Definitely, the answer is zero. It cannot be 1, because if 1 is inserted in an equation of efficiency of diesel cycle.

It becomes indeterminate numbers.

Anurup said:   8 years ago
Answer is cut off is zero and cut off ratio is 1.

Vipul said:   1 decade ago
How can cut off ratio is less than 1? it can not be 0.

Dhirendra Kumar said:   8 years ago
According to me, (D) 1 is the right answer.

Arun said:   9 years ago
I am sure that the answer is definitely one.

ASIF said:   9 years ago
The answer should be 1. Because cut off is zero and cut off ratio is 1.

Vanraj Gajarotar said:   9 years ago
Right answer is Option D, because cutt-off ratio equal to 1 put in equation then the efficiency of Diesel cycle approaches to Otto cycle efficiency.

Spandan said:   9 years ago
Cut off ratio is the ratio of cylinder volumes after and before the combustion process. So, obviously, the ratio should be greater than zero.

When the cut-off ratio is 1 the efficiency of diesel cycle approaches to that of otyo cycle.

Nakul S said:   10 years ago
Exact answer for this is 1.

Nakul S said:   10 years ago
Exact answer for this is 1. Cut off is zero but cut off ratio is 1.


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