A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron
Related Mcqs:
- Which of the following is a low melting point metal ?
A. Stainless steel
B. Wrought iron
C. Tin
D. Copper - Which of the following has the highest density and the lowest melting point ?
A. Stainless steel
B. Titanium
C. Lead
D. Aluminium - As the impurities are oxidised, the melting point of iron___________________?
A. Decreases
B. Remains unchanged
C. Increases
D. May increase or decrease; unpredictable - Tank furnace used for melting of glass is made of___________________?
A. Mild steel
B. Cast iron
C. Refractory blocks
D. Stainless steel - Sulphur melting pit in the sulphuric acid plant is made of__________________?
A. Lead lined stainless steel
B. Cast iron
C. Steel or cement-brick lined
D. Hard wood - Which one has the maximum tensile strength out of the following ?
A. Nodular cast iron
B. Pig iron
C. White cast iron
D. Grey cast iron - Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%) ?
A. Armature of small motors/generators
B. Generators and small motors
C. Induction motors
D. High frequency transformers - The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?
A. Lead
B. Copper
C. Aluminium
D. Wrought iron - Which of the following contains maximum percentage of carbon ?
A. Boiler plate steel
B. Rail steel
C. Saws for cutting steel
D. Railway spring steel - Silicon percentage in iron castings to have maximum hardness should be about__________________?
A. 0.3
B. 0.5
C. 0.8
D. 2.5
