ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2019

A diesel engine develops a Brake power of 4.5 kW. Its indicated thermal efficiency is 30% and the mechanical efficiency is 85%. Considering calorific value of the fuel as 40000 kJ/kg, the fuel consumption will be

A cycle consisting of two reversible isothermal processes and two reversible isobaric processes is known as

A large clearance volume in a reciprocating compressor results in

Two beams have the same length, same allowable stresses and the same bending moment. The cross sections of the beams are a square and a rectangle with depth twice that of width.
The ratio of weight of square beam to the weight of rectangular beam is

Two shafts A and B are made of same material. The diameter of shaft B is twice that of shaft A. The ratio of power which can be transmitted by shaft A to that of shaft B is

The value of maximum deflection for a cantilever beam of length l and carrying uniformly varying load from zero at free end to w per unit length at fixed end is

In a riveted joint, when the number of rivets decrease from the innermost rowto outermost row, the joint is said to be

The process of reheating the martensitic steel to reduce its brittleness without any significant loss of hardnessis called

$$\frac{18}{8}$$ stainless steel contains

Crowning of pulley is done to