Question

In the series of measurement in an experiment the reading of the period of oscillation of a simple pendulum were found to be 2.63sec,2.10sec, 3.1sec, 2.80sec and 2.71sec .
Calculate the mean value of the period of oscillation.

Answer 1

Answer:

four cylinder two stroke petrol engine with stroke to bore ratio 1.2 develops 35

kW brake power at 2200 rpm. The mean effective pressure in each cylinder is 9

bar and mechanical efficiency is 78%. Determine (1) diameter and stroke of each

cylinder, (2) Brake thermal efficiency, (3) Indicated thermal efficiency. If fuel

consumption is 8 kg/hr having C.V. =43000