ENGINEERING SCIENCE
SECTION A
Answer any ten questions out of the given 12 questions of 1 mark each :
1. Which of the following is not a temporary fastener ?
(i) Riveted joint
(ii) Welded joint
(iii) Nut and Bolt
2. In a V-thread, which of the following is the angle between the flanks ?
(i) 450
(ii) 300
(iii) 600
3. Which of the following is not a type of thread ?
(i) BSF
(ii) BSW
(iii) Isometric
4. For square rods, which of the following joints is preferred ?
(i) Socket and Spigot joint
(ii) Gib and Cotter joint
(iii) Sleeve and Cotter joint
5. Lead in a multiple thread is obtained by multiplying pitch with number of threads. Is this correct ?
6. A protected coupling is enclosed in a cage so that it does not harm any one. Is this correct ?
7. Spring washer is a sort of locking device. Is this correct ?
8. Give any two types of sections of solids.
9. A circular plane is inclined to HP and is perpendicular to VP. Which of the following is the top view ?
(i) Ellipse
(ii) Circle
(iii) A line
10. A polyhedron having a plane base and triangular faces meeting at apex, is called as :
(i) Pyramid
(ii) Prism
(iii) Cone
11. The top portion of a cone is cut by a plane parallel to base. What is the remaining portion called from the following ?
(i) Frustrum
(ii) Ellipse
(iii) Circle
12. Which method is used for development of prism from the following ?
(i) Parallel line development
(ii) Radial line development
(iii) Appropriation development
13. Name any three temporary fasteners.
14. Draw the profile of a buttress thread and give its angle.
15. Give examples of three types of bolts.
16. Name any three types of rivet heads.
17. Draw the sketch of a Gib Head key.
18. Give an example of a revolved section.
19. Draw the development of a triangular pyramid
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