Thermodynamics Multiple Choice Questions and Answers


21. The thermal efficiency of petrol engine is.......


   A.15%

   B.30%

   C.50%

   D.70%


✔ View Answer


B.30%

✍ Your Comments

Your name:

Your Email:

Your Comments:


You can send your comments directly at info@mechanicaltutorial.com.


22. The volumetric efficiency of a well designed engine may be.....


   A.30% to 40%

   B.40% to 60%

   C.60% to 70%

   D.75% to 90%


✔ View Answer


D.75% to 90%

✍ Your Comments

Your name:

Your Email:

Your Comments:


You can send your comments directly at info@mechanicaltutorial.com.


23. The break power of an engine is always......the indicated power


   A.Equal to

   B.Less than

   C.Greater than

   C.None of the above


✔ View Answer


B.Less than

✍ Your Comments

Your name:

Your Email:

Your Comments:


You can send your comments directly at info@mechanicaltutorial.com.


24. The ratio of the indicated thermal efficiency to the air standard efficiency is called......


   A.Mechanical efficiency

   B.Overall efficiency

   C.Volumetric efficiency

   D.Relative efficiency


✔ View Answer


D.Relative efficiency

✍ Your Comments

Your name:

Your Email:

Your Comments:


You can send your comments directly at info@mechanicaltutorial.com.


25. If the speed of the engine is increased,the indicated power will.......


   A.Increase

   B.Decrease

   C.Remain same

   D.None of the above


✔ View Answer


A.Increase

✍ Your Comments

Your name:

Your Email:

Your Comments:


You can send your comments directly at info@mechanicaltutorial.com.





< 1 2 3 4 5 6 7 8 Next Page>






Enter Your Suggestion/Comments Here










Can't read the image? Click here to refresh