Question
Chilled cast iron is produced__________
The correct answer is
By cooling of molten cast iron
Adding magnesium (or cerium) to molten cast iron is the primary method for producing ductile cast iron (also known as spheroidal graphite iron or nodular cast iron). By cooling of molten cast iron: Therefore, the process fundamentally relies on controlling the cooling of molten cast iron.
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Important Questions from Classification of Materials
- Based on the crystalline grain and shape, quantum dots are :
- Carbon nano tubes (CNT) are _____ times stronger than steel.
- Which of the following fibres are obtained from plant leaf.
(i) Pina
(ii) Sisal
(iii) Kapok
(iv) Coir
Code : - Assertion (A) : While washing woollen garments kneading and squeezing method is used.
Reason (R) : Scaly structure of wool cause felting due to friction.
Code : - Assertion (A) : Terry Towel is the most absorbant fabric structure
Reason (R) : It is a cut pile hence more surface area to absorb water.
Code :
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