Mechanical Engineering :: Workshop Technology
- The diaphragm moulding machine is used to
- In a centrifugal casting method
- The temperature of the inner luminous cone of neutral flame is about
- The acetylene cylinder is usually painted with
- The oxygen cylinder is usually painted with
- The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called
- The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
- Which of the following statement is wrong?
- Which of the following statement is wrong?
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A.
The hot chamber die casting machine is used for casting zinc, tin, lead and other low melting alloys. |
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B.
The cold chamber die casting machine is used for casting aluminium, magnesium, copper base alloys and other high melting alloys. |
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C.
The castings produced by centrifugal casting method have open and coarse grained structure. |
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D.
All of the above |