Building Materials — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Chemistry
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What is the primary raw material used for the manufacture of Portland cement that provides calcium?
Which of the following is NOT a raw material used in the manufacture of glass?
What is the main component of glass?
Which compound in Portland cement is responsible for the initial setting?
Sample Questions
Which of the following are raw materials for Portland cement?
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Limestone,Clay,Gypsum,Coal
Limestone and clay are primary raw materials; gypsum is added to control setting time; coal is used as fuel in the kiln.
Glass is an amorphous solid.
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True
Glass lacks a regular crystalline structure and is classified as an amorphous solid or supercooled liquid.
Which type of cement is used in construction near seawater?
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High Alumina Cement
High alumina cement has superior chemical resistance and can be safely used with seawater and sulfate-rich environments.
What is the purpose of adding gypsum to cement?
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To control setting time
Gypsum is added to slow down the setting process of cement; without it, cement would set too quickly.
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