Table of Contents
- 1 When compression ratio is equal to one the efficiency of Otto cycle is?
- 2 Why the higher efficiency of the Otto cycle compared to diesel cycle for the same compression ratio is only of academic interest and not practical importance?
- 3 What is the relation between compression ratio and the efficiency of the Otto cycle Mcq?
- 4 Why the higher efficiency of the Otto cycle compared to Diesel cycle for the same compression ratio is only of academic interest and not practical importance?
When compression ratio is equal to one the efficiency of Otto cycle is?
Detailed Solution. For same compression ratio, the efficiency of an Otto cycle is higher than that of the diesel cycle.
Which is more efficient out of Otto diesel and dual cycles for the same compression ratio and heat rejection?
For the same compression ratio and heat rejection, heat supplied is more in Otto cycle and hence it will be more efficient than Diesel and Dual will be in between these two.
Why the higher efficiency of the Otto cycle compared to diesel cycle for the same compression ratio is only of academic interest and not practical importance?
In this case when the compression ratio is the same, more heat can be added in Otto cycle (at almost constant volume) than that of the Diesel (almost at constant pressure), the heat rejected to atmosphere is the same for both cycles, because of that Otto will have better efficiency than Diesel.
Which cycle has the highest efficiency for the same compression ratio and heat addition?
the Otto cycle
The cycle which has the least heat rejected will have the highest efficiency. Thus, the Otto cycle is the most efficient and the Diesel cycle is the least efficient of the three cycles.
What is the relation between compression ratio and the efficiency of the Otto cycle Mcq?
Important Points
| C.I.Engine | S.I.Engine |
|---|---|
| compression ratio: 16:1 to 22:1 | compression ratio: 6:1 to 12:1 |
| Thermal efficiency is high. | Thermal efficiency is less. |
| Weight per unit power is more. | Weight per unit power is less. |
| Produce high torque and operating speed is less. | Produce less torque but operating speed is quite high. |
What is the relation between compression ratio RK and the efficiency of the Otto cycle?
Explanation: This is the expression for efficiency of Otto cycle and rk=compression ratio=Vmax/Vmin.
Why the higher efficiency of the Otto cycle compared to Diesel cycle for the same compression ratio is only of academic interest and not practical importance?
How does the change in compression ratio affect the air standard efficiency of an ideal Otto cycle?
What is the work output of the theoretical Otto cycle? Explanation: The mean effective pressure of an Otto Cycle is directly proportional to its compression ratio, so it increases with an increase in compression ratio.