MCQs
Total Questions : 350
| Page 4 of 35 pages
Answer: Option B. -> Cupola
Cast iron is manufactured in Cupola
Cast iron is manufactured in Cupola
Answer: Option B. -> RC 48
Hardness of upper bainite (acicular structure) is about RC 48
Hardness of upper bainite (acicular structure) is about RC 48
Answer: Option A. -> Allotropic change
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as Allotropic change
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as Allotropic change
Answer: Option D. -> Back and forth like tiny pendulums
The molecules in a solid move Back and forth like tiny pendulums
The molecules in a solid move Back and forth like tiny pendulums
Answer: Option C. -> Allotropic change
A reversible change in the atomic structure of steel with corresponding change in the properties is known as Allotropic change
A reversible change in the atomic structure of steel with corresponding change in the properties is known as Allotropic change
Answer: Option C. -> 85 - 92% copper and rest tin with little lead and nickel
Gun metal contains 85 - 92% copper and rest tin with little lead and nickel
Gun metal contains 85 - 92% copper and rest tin with little lead and nickel
Answer: Option D. -> Uniform strength in all directions
Physical properties of wrought iron are listed below:
Soft and Tough
Ductile
Hight tensile Strength
High compressive strength
Easily forged and weldable
Physical properties of wrought iron are listed below:
Soft and Tough
Ductile
Hight tensile Strength
High compressive strength
Easily forged and weldable
Answer: Option D. -> Graphite
A crucible is a pot that is used to keep metals for melting in a furnace. Furnace crucibles are designed to withstand the highest temperatures encountered in the metal casting works. and it is made of graphite.
A crucible is a pot that is used to keep metals for melting in a furnace. Furnace crucibles are designed to withstand the highest temperatures encountered in the metal casting works. and it is made of graphite.
Answer: Option B. -> Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Tungsten in steel Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Tungsten in steel Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Answer: Option A. -> Nickel, copper and iron
Perminvar alloy having constant permeability is an alloy of Nickel, copper and iron
Perminvar alloy having constant permeability is an alloy of Nickel, copper and iron
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