Uniform ramming of sand in green sand moulding process leads to
Reduced chance of gas porosity
Greater dimensional stability of the casting
Uniform flow of molten metal into the mould cavity
Less sand expansion type of casting defect
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- Corrosion of metals cannot be prevented by its
- An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform…
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- Closeness of packing is maximum in case of __________ crystal lattice.
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- __________ wire is never used for making the heating element.
- Which of the following fastening devices has a head at one end and a nut fitted to the other?
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- Force between the molecules of the same substance is called __________ force.
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- Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when…
- Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
- The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
- Nickel and __________ are the alloying element added in steel to increase its toughness.
- Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
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- Adhesives
- __________ of hard alloy and tool steel is done to make it easily machinable.
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