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Q. Describe facing material?
Facing Materials: These materials when added to the moulding sand tend to obtain smoother and cleaner surfaces of castings, help easy peeling of sand from the casting surface during shake out and prevent metal penetration. Sea coal, pitch (distilled from soft coals), asphalt, graphite and silica flour discussed above, act as facing materials.
calculate voltage gain
Q. Maintenance requirement at storage tanks? Little maintenance is required at storage tanks; sometimes access is required for equipment used to remove accumulated solids (this
a) Determine the relative error if 2/3 is approximate to 0.667. b) √29 = 5.385 and √Π= 3.317 Correct to 4 significant figures. Determine the relative errors in their sum and dif
(a) The following forces (all pull) act at a point : (6) (i) 20 N North-East (ii) 25 N due North (iii) 20 N 30o East of South (iv) 15 N due East (v) 30 N 60o South o
Tell me the type of furnace and their principle
how to culculate stress in unsymmetrical bending
An inside cylinder locomotive has its cylinder centre lines 0.70m apart and has a stroke of 0.60m. Rotating mass per cylinder = 150kg Distance between wheel Centre lines = 1.
Determine formula for Elongnation of body due to it''s Self Weight
(a) Derive a mathematical expression to determine the efficiency of Bell Coleman Cycle. (b) A dense air refrigeration cycle acts between pressures of 4 bar and 16 bar. The air t
BASIC PRINCIPLE OF ELECTRON BEAM WELDING(EBW) Electron beam welding which utilises a heat source of electrons which are accelerated by an electric field to mextremely high
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