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Q. Describe Natural and Synthetic Sand?
Natural sand: A natural sand is the on which is available from natural deposits. Only assistive and water need to be added to it to make it satisfactory for moulding. The clay content of most natural sands is slightly higher than the desired so that new sand can be continuously added to the used sand to replenish that which is lost.
Synthetic sand: A synthetic sand is prepared by mixing a relatively clay free and having a specified type of clay binder as well as water and other additives. All are mixed in the foundry. This sand has the advantage that sand grains of specified composition and properties can be prepared on the basis of the metal being cast.
W orking Principle of the Petrol Engine: OTTO CYCLE 5-1 Suction Stroke 1-2 Adiabatic Compression Stroke 2-3 Heat Addition at the constant Volume.
Find speed for two hours with HSS tools Find speed for two hours tool life for dry machining of free cutting mild steel with HSS tool. Solution From Table 3, a value o
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Explain about the Deep foundation Deep foundations are those where the depth D is much larger than B. Piles, wells, piers and caissons belong to this group.
what is shear stress
A sign of uniform density weighs 270 lb and is supported by a ball-andsocket joint at A and by two cables. Determine the tension in each cable and the reaction at A.
Determine the tension in the cord: Two blocks containing the weights and positions illustrated in Figure rest on a frame which rotates around its vertical axis at a constant s
Structural notches In t he case of solid solution strengthened alloys and age hardenabled steel, the variation in heat i/o during welding may cause localized grain coarsening o
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