Question

How are the indicator diagrams drawn for the ship?

(a) By providing the ship’s mass

(b) By providing the ship’s volume

(c) By matching ships sea trial diagrams

(d) By differentiating the diagrams

I had been asked this question at a job interview.

My question is from Ideal Indicator Diagram topic in portion Indicator Diagrams of Fluid Mechanics

Answer 1

Right answer is (c) By matching ships sea trial diagrams

Explanation: Indicator diagrams are drawn by taking the diagrams at regular intervals. This time taken at regular interval is matched with the ship’s sea trial diagrams. The comparison is to check if there is any significant difference in the performance.