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Tungsten in steel
A Improves wear resistance, cutting ability and toughness
B Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
C Improves cutting ability and reduces hardenability
D Gives ductility, toughness, tensile strength and anti-corrosion properties
__________ can replace tungsten in high speed steel,
A Chromium
B Vanadium
C Cobalt
D Molybdenum
Tungsten when added to steel __________ the critical temperature.
A Does not effect
B Lowers
C Raises
D None of these
Tungsten in high speed steel provides
A Hot hardness
B Toughness
C Wear resistance
D Sharp cutting edge
__________ can replace tungsten in high speed steel.
A Chromium
B Vanadium
C Cobalt
D Molybdenum
Tungsten in high speed steel is responsible for its
A Toughness & wear resistance
B Cold hardness
C Hot hardness
D Sharp cutting edge
Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.
A Chromium
B Nickel
C Tungsten
D Cobalt
A cam mechanism imparts following motion
A Rotating
B Oscillating
C Reciprocating
D All of the above
The main constituent which imparts hydraulicity to hydraulic lime is
A Calcium oxide
B Silica
C Clay
D Water
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.
A Thermoplastic
B Thermosetting
C Elastometric
D Brittleness

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