207) The most commonly used retarder in cement is
Answer is:
gypsum
Related Structural Engineering I MCQ with Answers
Answer is:
iron ore, coal and lime stone
Answer is:
(i)and(iv)
Answer is:
carbon
Answer is:
wrought iron
Explanation:
Wrought Iron is the purest form of iron; although it may contain traces of carbon. It is usually made by ‘‘puddling process’’. It is very costly and its use has been almost totally replaced by cheaper steel. However, for some components like chain-links and Crane-hooks wrought iron is still the preferred raw material.
