Mechanical Engineering :: Workshop Technology
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Cast iron and steel pipes are produced by
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The acetylene cylinder is usually painted with
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In order to ram the sand harder at the back of the mould and softer on the pattern face, a __________ is used.
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The property of sand due to which the sand grains stick together, is called
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The oxidising flame is similar to neutral flame but the inner cone is less luminous and shorter.
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According to Indian standard specifications, 100 H6/g 5 means that.
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Which of the following statement is wrong?
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The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is
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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
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