A. Proximity between its elastic limit and ultimate breaking strength
B. Ductility
C. Tensile strength
D. All A., B. and C.
Related Mcqs:
- White cast iron as compared to grey cast iron is ________________?
A. More durable
B. Very brittle
C. Very hard
D. All A., B. & C. - Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ____________________?
A. Acetic acid
B. Benzoic & boric acids
C. Phosphoric acid (95%) & sulphuric acid (95%)
D. Hydrochloric acid (concentrated) - Presence of high phosphorous in cast iron increases its____________________?
A. Fluidity
B. Melting point
C. Shrinkage
D. Tensile strength - Wrought iron is having very high ________________?
A. Hardness
B. Strength
C. Corrosion resistance
D. Susceptibility to changes in its properties by heat treatment - Very high sulphur in pig iron makes ___________________?
A. Its casting unsound
B. Its hard and machinable
C. Its brittle and malleable
D. All A., B. & C. - Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of___________________?
A. Tungsten
B. Vanadium
C. Silicon
D. All A., B. & C. - Cast iron is a ______________ material?
A. Brittle
B. Ductile
C. Tough
D. Malleable - Silicon percentage in acid resistant cast iron is about________________?
A. 4
B. 8
C. 14
D. 20 - Cast iron has____________________?
A. High ductility
B. High malleability
C. Very high tensile strength
D. Its elastic limit very close to ultimate breaking strength - Which one is remelted and poured into moulds to get cast iron ?
A. Wrought iron
B. Pig iron
C. Low carbon steel
D. Mild steel
