A solar collector receiving solar radiation at the rate of 0.6 kW/m2 transforms it into the internal energy of a fluid at an overall efficiency of 50%. The fluid heated to 350 K is used to run a heat engine which rejects heat at 313 K. If the heat engine is to deliver 2.5 kW power, the minimum area (in sq. meters) of the solar collector required would be:

In which type of welding is a mixture of Iron oxide and Aluminum used?

The forces which meet at one point but whose lines of action lie on different points are known as ______________.

Calculate the value of crippling load of a specimen, given that the crushing stress is 160 newtons per square meter, cross sectional area is 80 square millimeters, Rankine's

constant is 1, length of column is 1 millimeter and the value of radius of gyration is also 1.

How many revolutions of crankshaft does it take to complete one working cycle in a four stroke engine?

Which type of thread is used in bench vices in manufacturing units?

The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/2, in torsion, is

According to principle of moments

The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as

A simply supported beam (l + 2a) with equal overhangs carries a uniformly distributed load over the whole length, the B.M. changes sign if

A force acting on a body may