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Q. Explain Sand and moulding sands?
Sand according to the amount of clayey matter they contain, the moulding sands are classified as:
• Silica sand: Up to 20% clay.• Lean or weak sand: 2 to 10% clay• Moderately strong sand: 10 to 20% clay• Strong sand: Up to 30% clay• Extra strong sand: Up to 50% clay.
There are three types of sand used for making moulds: natural, synthetic and chemically coated.
These parts of joints are used to connect two rods, which are under compressive or tensile stress. The ends of the rods are in the manner of a socket and shaft that fit together an
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Describe vortex flow and derive mathmetical equation Z= w 2 r 2 /2g for forced vertex flow ω= angular velocity z= height of parabola r= radius of parabola
derive an expression for the fundamental frequency of sound obtainable from a tube given diameter open at one end
CO2 Welding CO2 Welding is a variation of GMAW. Here the inert gas is replaced by gas mixtures or carbon dioxide, which are chemically active. The carbon dioxide decomposes in
Pneumatic system is a system that uses air to power something. For example, have you seen the tube systems at bank drive-up tellers? Air is used to drive the tubes back and forth f
An aircraft flap actuator housing made of cast magnesium alloy ZAG3A-T4 with uniaxial yield strength σ Y = 14,000 psi. At the suspected critical point the calculated state of str
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2 x 2 m square gate opens clockwise on a horizontal hinge located at point A, which is 100 mm below the centroid of the gate. The gate sits against solid rubber blocks which create
plate jig
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