ISRO Scientist or Engineer Mechanical 2016

The main objective of ‘shot peening’ is to improve which property of metal parts

When a material is strain hardened?

Which thread is more suited in powerscrew to take load on both directions?

A holeis specified as $$\phi 50^{\left(\frac{+0.050}{-0.000}\right)}$$ mm. The mating shaft has a clearance fit with minimum clearance of 0.02 mm. The tolerance on the shaft is 0.03 mm. Maximum clearance between hole and shaft is

In a cutting operation the cutting speed was reduced by 20%. Assuming n = 0.5 and C = 350 in Taylor’s equation, the increasein toollife is

Mass production of seamless tubes is by the process of

Misrunis a casting defect which occurs due to

A simple steam powercycle receives 100,000 kJ/min as heat transfer from hot combustion gases and rejects 66,000 kJ/min as heat transfer to the environment. If the pump power
required is 1400 kJ/min, the thermal efficiency of the cycle and turbine power output is

Air at 100 kPa, $$2^\circ C$$ occupies a 10 liter piston-cylinder device that is arranged to maintain constant air pressure. This device is now heated until its volume is 20 liters. The work produced by the air is

A heat engine working with a thermal efficiency of 35% receives 2 kW of heat from a furnace. The waste heat rejected from the engine is