1.What are the raw materials for cement? Ans: Calcarious materials – limestone,chalk etc. Argllacious materials – clay, shale etc. Powedered coal Gypsum. 2. What is the highest temperature maintained in the rotary...
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1.Define abrasives? How they are classified Ans: Abrasives are hard substances used for grinding, cutting sharpening, polishing and buffing operations. They are characterised by high hardness, high melting point and...
1.Define nuclear fission. Give an example. Ans: Nuclear fission is the process of splitting of a heavy nucleus into two lighter nuclei of nearly comparable masses with release of energy. Example: Fission of U-235 by neutrons. 2...
1. What is a paint? Ans. Paints is a viscous, opaque, mechanical dispersion mixture of one or more colouring matter called pigment in a dry oil called vehicle. 2. What are the characteristics of a good paint? Ans. It has high...
1. What is corrosion ? Give examples. Ans. Corrosion is the destruction or deterioration of metals or alloys as a result of chemical or electrochemical reaction with its environment. The well-recognised example of corrosion is...
1. What are electrochemical cells ? Ans. It is an electrochemical device, which converts electrical energy into chemical energy (electrolytic cells) or chemical energy into electrical energy (galvanic cells). 2. Differentiate...
1. Define soft water and hard water. Ans: Soft water : Water which forms lather easily and readily with soap is called soft water. Hard Water : Water which does not produce lather with soap readily but forms an insoluble...
1. What is meant by magnetic materials? Give examples? Magnetic materials are the materials which can be easily magnetized by keeping it in an external magnetic field. Examples : Iron, Ferrites, Carbon steel etc. 2. Define...
Honours Degree in India: An Overview An Honours Degree in India is a specialized undergraduate program that offers students the opportunity to delve deeper into their chosen field of study. Compared to a regular bachelor’s...
Fontbonne University Overview Fontbonne University, located in St. Louis, Missouri, is a private institution known for its commitment to academic excellence and community engagement. With a focus on providing a well-rounded...
