Basic Manufacturing Process - Ch. 10.5



[I] Choose Correct Answers
1. Match the following :
(i) Hard wood         (a) Glass
(ii) Ceramic         (b) Deodar
(iii) Soft wood (c) Shisham
(iv) Composite material (d) Tufnol.                                                   (AKTU. 2008-09)

2. Cement is a combination of
(a) CaO, H2O, SiO2 (b) CaO, Al2O3, SiO2
(c) MgO, H2O, Al2O3 (d) MgO, CaO, SiO2

3. In plastic it has
(a) low shrinkage (b) high shrinkage
(c) medium shrinkage (d) no shrinkage.

4. Wood is used in
(a) Making furniture         (b) Pattern making
(c) Sound proof constructions (d) All of these

5. Which is not correct with reference to hard wood
(a) More durable (b) Dark in color and heavier in weight
(c) Easy to be worked (d) Annular rings are not distinct

6. Composite materials are combination of
(a) Binder material and additives (b) Metallic and non-metallic compounds
(c) Rubber and concrete         (d) RCC and plastics

7. Non-metallic elements which are basically the oxides and compounds of metal and non-metals are known as
(a) Composite (b) Organic polymer
(c) Ceramic (d) Ores                                                               (AKTU. 2010 - 11)

8. inorganic non-metallic material which are used at very high temperature
(a) Cement                 (b) Rubber
(c) Thermosetting plastic (d) Ceramic                                         (AKTU. 2010 - 11)

[II] Fill in the Blanks
9. Soft wood is ................... to be worked.

10. Portland cement mainly consists of ..................., ................... and ...................

11. Ceramics are compounds of ................... and ................... substances.

12. Concrete is a mixture of cement, ................... and ...................

13. Manufacturing is the process of converting raw material into ................      (AKTU. 2008-09)

14. Plaster of paris is ................... 

15. Plastics are ...................

16. Thermosetting plastics are also known as ...................

[III] True or False Statements

17. Hard wood has both good tensile and shear strength.

18. High alumina cement gets it full hardness in very less days.

19. TV and radio cabinets are made from thermosetting plastics.

20. Ceramics have very high compressive strength but are brittle in nature.

21. Monalithic structure can be made of RCC.




1. i. (c) ii. (a) iii. (b) iv. (d) 2. (b) 3. (a) 4. (d) 5. (c)
6. (a)                 7. (c) 8. (d)
9. easy         10. CaO, SiO2, Al2O3 11. metallic, nonmetallic
12. sand, stones 13. finished goods         14. gypsum cement
15. light in weights 16. heat setting or thermo sets
17. (T)         18. (T)         19. (T) 20. (T)
21. (T)