A power plant working based upon Rankine cycle, is designed to run in winters. Now it is operated in summers. Now what would happen to efficiency; it decrease, increase on remain same?

What is the diff between torque and bhp and which one will have a greater effect on top speed and acceleration figures?
have heard that diesel engines r more torquier by nature. why??

say i have 2 cars one which has 10 x of torque and 20 bhp and the other has 20x of torque and 10 bhp.
which car will be quicker??

The distance between origin and point nearest to it on the surface  z^2 = 1+xy would be??

A random variable is uniformly distributed between 0 and 1. What will be its standard deviation?