Acetylene gas is stored in cylinders in Liquid form Gaseous form Solid form Any one of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used. Squeezing machine Sand slinger Stripper plate machine Jolt machine TRUE ANSWER : ? YOUR ANSWER : ?
A zinc diffusion process is called Anodizing Parkerising Sherardizing Galvanizing TRUE ANSWER : ? YOUR ANSWER : ?
Cores are used to Improve mould surface Form internal cavities in the casting Form a part of a green sand mould All of these TRUE ANSWER : ? YOUR ANSWER : ?
The parts of circular cross-section which are symmetrical about the axis of rotation are made by Hot forging Hot extrusion Hot drawing Hot spinning TRUE ANSWER : ? YOUR ANSWER : ?
In a centrifugal casting method No core is used Core is made of ferrous metal Core is made of nonferrous metal Core is made of sand TRUE ANSWER : ? YOUR ANSWER : ?
The property of sand due to which it evolves a great amount of steam and other gases is called Cohesiveness Collapsibility Adhesiveness Permeability TRUE ANSWER : ? YOUR ANSWER : ?
A jolt machine is used to Produce uniform sand hardness throughout the mould Ram the sand harder at the back of the mould and softer on the pattern face Produce uniform packing of sand in the mould Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould TRUE ANSWER : ? YOUR ANSWER : ?
In forehand welding, the weld is made Either from left to right or from right to left First from left to right and then from right to left From right to left From left to right TRUE ANSWER : ? YOUR ANSWER : ?
V-block is used to Locate centres of round rods Check the trueness of flat surfaces Check the surface roughness None of these TRUE ANSWER : ? YOUR ANSWER : ?