1)Drawing Down: Drawing down is a process of elongate the length and reduce the cross section area of work piece. Simply in this operation, the length of work piece increases and the cross section area decreases. In this process, a compressive force is applied at perpendicular direction of its length axis. If a tensile force is applied to change its length at parallel to its length axis, this process is known as wire drawing.
2) Upsetting: Upsetting is just opposite operation to drawing down. In this operation, the length of work piece decreases and its cross section area increases. In this process, a compressive force is applied at parallel direction to its length axis.
30) In forging the operation of increasing the thickness of a bar at the expense of its length is called
Answer is:
upsetting
Explanation:
Related KPSC ITI JTO Fitter Question Papers - 2018 with Answer Key
Answer is:
single hem
Answer is:
maroon colour
Explanation:
In gas welding the acetylene cylinder is painted with maroon colour.
Answer is:
Cast iron
Answer is:
clearance fit
Explanation:
In Clearance fit, the largest permitted shaft diameter is smaller than the diameter of the smallest hole, so that the shaft can rotate or slide through with different degrees of freedom according to the purpose of mating members.
