Plus Two / 12th Std / +2 Engineering Drawing Model Question Paper : www.jac.nic.in Jharkhand

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Document Described : Engineering Drawing Question Paper, Jharkhand Question Paper

ENGINEERING DRAWING
Full Marks - 70
Pass Marks - 23
Time - 3 Hours
All questions are compulsory.
Candidates are required to give their answers in their own words as far as practicable.
Figures in the margin indicate ful marks.

http://jac.nic.in/model_questions.htm
http://jac.nic.in/pdf/model_question...awing12_08.pdf

1. A cylindrical block of base 50 mm diameter and height 90 mm standing on H.P. with its axis perpendicular to the H.P. Draw its isometric view. 5
2. Answer al questions : 2×5=10
(a) What is difference between the isome- tric view and isometric projections ?
(b) Isometric length
True length = ?
(c) Draw the isometric view of an equilateral triangle when its surface is parallel to V.P. (take 50 mm as one of sides of the equilateral triangle).
(d) A semicircle of diameter 60 mm and whose surface is parallel to V.P., then develop the Isometric view.
(e) What is isometric graph ? How is it different from the normal graph ?
3. Draw the isometric view of a Cone of base 40 mm diameter and axis 55 mm long when its axis is horizontal. 5
4. Show by means of sketches the conventional methods of showing the following screw threads : 21 2 ×4=10
(c) Left-hand square thread, dia 20 mm, pitch 3 mm
(d) Double start square thread, dia 40 mm, pitch 3 mm.
5. Draw three views of a hexagonal headed bolt 24 mm dia and 100 mm long with hexagonal nut and washer (assume other data if needed). 10
6. Draw the isometric view of a Square headed bolt 24 mm diameter 70 mm long with square neck 18 mm thick and head 40 mm square and 18 mm thick. 5
7. Draw the sectional view and the top view of two 20 mm thick plates fastened together by means of 20 mm diameter stud, a hexagonal nut and washer. Insert important dimensions.
8. Draw sectional view, the top view and side view of a single revetted lap joint for 12 mm thick plates. Show the pitch, margin and width of overlap. 10
9. Draw with free hand sketches: 21
(a) Eye foundation bolt
(b) Rag bolt.