Tricky GATE/PSU Questions Part-2

Keeping GATE and PSU aspirants in view, few tricky/logical questions are being posted in the video:


Questions in the video are:

• The stress strain diagram for an aluminium alloy is shown below. If the specimen of the material is stressed to 600 Mpa and the the load is released , then the elastic recovery (in mm/mm) of the specimen is ____________
  

• Starting from rest, a particle moves along a circular path of radius 'r' so that the distance traveled is given by the expression 
  
   where c is constant and t is time in seconds. The radial component of acceleration of the particle is _______________

• Consider the following stress state imposed on a material -

If the material responds elastically with a volumetric strain , What is the bulk modulus???

For solution please watch the video below on youtube: