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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'.
Q. Describe Organic binders and its working? Organic binders: The binders are most frequently used in core making. Cereal binders are obtained from wheat, corn or rye; resins
Points of Contraflexure: Assume M 1 , M 2 , . . . and M 6 be the points of contraflexure, where bending moment changes sign. To determine the position of M 2 , let a section
State required Features of Fourier Law. What are the factors on which co-efficient of thermal conductivity (K) depends upon ? Write the unit of K.
what absorber
Concept and application of limiting friction: Sol.: The maximum value of frictional force that comes into play, when the body just begins to slide over the surface of the ot
A tube assembly constructed of Cu with an inside diameter of 1.25 cm, wall thickness of 0.8 mm and circumferential fins around the periphery. The fins have thickness of 3 mm, and a
Evaluation Phase of Radial drilling machine Steps: 1. To judge the ideas generated in the creation phase for ability to meet the required criteria. 2. To refine, develop
Q What do you know about Series welds in spot welding? It is a welding method in which two or more spots are produced simultaneously with only one common but indirect current p
Frustum of cone
Q. Design Wellheads and Wellpads? Hydrocarbon-producing wellheads and wellpads shall be located in open, well ventilated areas with as much segregation from other critical equi
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