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Engineering Chemistry Practice Test: Industrially Important Materials
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Industrially Important Materials include: Soaps, detergents, lubricants, oils and fats.

Engineering Chemistry Practice Test: Industrially Important Materials
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25 Questions

1. Which of the following is not a suitable solvent for oils and fats?
2. Lubricant act as a coolant to carry away heat.
3. Melting point of fat is _________ and melting point of oil is ________
4. Soaps are _____________ based soapy detergents.
5. The science of friction, lubrication and wear is called ____________
6. Which of the following is a typical soap molecule?
7. Which of the following is the residual product in the formation of soap?
8. Which of the following chemical is added in washing powder for keeping it dry?
9. Iodine number is defined as number of grams of iodine needed for the iodination of ________ gram/grams of oil or fat.
10. Which of the following is an example of non-ionic detergent?
11. Soft soaps are the limitation of hot process because of their ____________
12. Vegetable ghee is manufactured by ____________
13. The smaller is the saponification value, the higher will be the molecular weight of oil or fat.
14. Oils and fats are good conductors of heat and electricity.
15. If the carbon chain is linear, the corresponding detergent will be ____________
16. Select the incorrect statement from the following option.
17. Lubrication is necessary to protect wear and tear caused due to _______________
18. Richert-Meissl number is defined as the volume of 0.1M KOH solution required for the neutralisation of _______ gram/grams of fat or oil.
19. The viscosity of petroleum oil for hydraulic lifts is ____________
20. Which of the following is of special value in testing the purity of butter and desi-ghee?
21. Which of the following is an example of cationic detergent?
22. Drying oils are used as the medium of paints and varnishes.
23. The detergents which bear negative charge at the soluble end of the chain are called anionic detergents.
24. Select the correct statement from the following options.
25. Which of the following is an example of fats?

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