As a part of a maintenance inspection the compressor of a jet engine is made to

Question

As a part of a maintenance inspection the compressor of a jet engine is made to spin according to the graph as shown. The number of revolutions made by the compressor during the test is

Options:

A . 9000

B . 16570

C . 12750

D . 11250

Answer: Option D
:
D
Number of revolution = Area between the graph and time axis = Area of trapezium

= \frac{1}{2} \times (2.5 + 5) \times 3000 = 11250

revolution.

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