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Q. Explain the Cushion Materials which used in moulding sand?
These materials when added to the moulding sand burn and from gases when the molten metal is poured into the mould cavity. This gives rise to space for accommodating the expansion of the sand at the mould cavity surface. Wood flour, cereals, cereal hulls and cellulose etc. discussed above are called as 'Cushion materials'.
Strength tests : These tests are carried out to check the holding powers of various binders used in green moulding sand, dry moulding sand and core sand. These tests are performed
#wHAT WILL BE THE PULLEY CRITERIA TO DECIDE THE RPM
Kennedy theorem
Difference between projectile motion and a rocket motion? Ans) A projectile has no motor or rocket on it, so all of its momentum is given to it as it is opened. An example of a
General Electric Research Laboratory: Philip Kennicott joined the General Electric Research Laboratory in the year 1961 where he made contributions in the fields of x-ray crys
A machine of mass one tonne is acted upon by an external force of 3000 N at a frequency of 1500 rpm. To reduce the effects of vibration, isolator of rubber having a static deflecti
Pipe flanges are protected from corrosion by means of electrolysis, with dielectric flanges. The piping system is electrically insulated by what is known as a sacrificial anode. A
Give the assumption of pure torsion derivation of shear stress produced in circular shaft subjected to torsion
An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg. Calculate the pressure at the bottom of the test tube if the atm
what are the necessity of lubrication ?
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