Shrinkage fit A shrinkage fit is obtained by making the shaft (internal member) slightly larger than the hole (external member). In shrinkage fit, pressure is not required for assembling but instead the hole (external member) is heated and expanded sufficiently to permit the shaft (internal member) to be inserted easily. Then the hole (external member) is cooled to shrink tightly around the shaft (internal member).
44) Which of the following is not a clearance fit
Related ISRO Technician-B Fitter Question Paper - 2016 (Set - 1) with Answer Key
When a system of forces act on a body, it undergoes some deformation. This deformation per unit length is known as unit strain or simply a strain.
Strain = (Change in Length)/(Original Length)
Primary Strain or Linear Strain The deformation of the bar, per unit length in the direction of the force is known as primary or linear strain.
Secondary Strain or Lateral Strain Every direct stress is always accompanied by a strain in its own direction, and an opposite kind of strain in every direction, at right angles to it. Such strain is known as secondary or lateral strain.