A chemical change takes place when iron_____________?
A chemical change takes place when iron_____________?
A. Rusts
B. Melts
C. Is heated
D. None of these
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Which of the following undergoes granular fracture ?
Which of the following undergoes granular fracture ?A. Wrought iron
B. Steel
C. Cast iron
D. None of theseResidual magnetism in steel for magnets is increased by the addition of__________________?
Residual magnetism in steel for magnets is increased by the addition of__________________?A. Nickel
B. Cobalt
C. Tungsten
D. ChromiumThe ability of a material to offer resistance to scratching or indentation is a measure of its_________________?
The ability of a material to offer resistance to scratching or indentation is a measure of its_________________?A. Brittleness
B. Toughness
C. Hardness
D. ResilienceSO3 is absorbed using H2SO4 in a____________________?
SO3 is absorbed using H2SO4 in a____________________?A. Cast iron packed tower
B. Stainless steel plate tower
C. Packed steel tower lined with acid proof bricks
D. None of theseBall bearings are normally made of __________ steel.
Question: Ball bearings are normally made of __________ steel.
[A].high speed [B].
high carbon [C].
chrome [D].
silicon Answer: Option C
Explanation:
No answer description available for this question.
Monel alloy is
Question: Monel alloy is
[A].the costliest of all the alloys of nickel. [B].
not suitable for making kitchen utensils. [C].
used for making steam valves and turbine blades as it resists steam attack at high temperature. [D].
not used in cast and wrought forms. Answer: Option C
Explanation:
No answer description available for this question.