Question:- How many colours the sunlight spectrum has? A. Three B. Seven C. Four D. Five
Answer:- Option B
Question:- Which is/are the important raw material(s) required in cement industry? A. Gypsum and Clay B. Clay C. Limestone and Clay D. Limestone
Answer:- Option C
Question:- Which type of fire extinguisher is used for petroleum fire? A. Powder type B. Liquid type C. Soda acid type D. Foam type
Answer:- Option A
Question:- Epoxy resins are used as A. detergents B. insecticides C. adhesives D. moth repellents
Answer:- Option C
Question:- Detergents used for cleaning clothes and utensils contain? A. bicarbonates B. bismuthates C. sulphonates D. nitrates
Answer:- Option C
Question:- Which of the following is a protein? A. Natural rubber B. Starch C. Cellulose D. None of these
Answer:- Option A
Question:- Wood is the main raw material for the manufacture of A. paint B. paper C. ink D. gun powder
Answer:- Option B
Question:- Optic fibres are mainly used for which of the following? A. Musical instruments B. Food industry C. Weaving D. Communication
Answer:- Option D