Engineering Drawing - May 2015

First Year Engineering (Semester 2)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) A circle of 60mm diameter rolls on a straight line without slipping. Draw the locus of a point 'P' for complete revolution of the circle. The point 'P' is 38mm above the straight line and towards the right of vertical center line of the circle/(6 marks) 1 (b) Figure 1 shows pictorial view of an object. Draw i) Front view ii) Top view iii) Dimension the view (9 marks) 2 A pentagonal prism of 28mm, edge of base and 60 mm length of axis has a 28mm, edge on the H.P. The axis in inclined at 35° to H.P. and 45° to V.P. Draw the projections.(15 marks) 3 Figure 2 shows pictorial view of an object. Draw i) Sectional Front View along A-A. ii) Sectional Left hand side view along B-B. iii) Top View iv) Dimension the views (any four) (15 marks) 4 (a) The distance between the end projectors of a line AB is 60mm. The end A is 25mm above H.P. and 45mm in front of V.P., while the other end B is 60mm above H.P. and 15mm in front V.P. Draw projections and find the true length and also inclination of the line with H.P. and V.P.(9 marks) 4 (b) Figure 3 shows two views of an object. Draw isometric view of the object. (6 marks) 5 A square pyramid of base side 25mm and altitude 50mm rests on its base on the HP with two sides of the base parallel to VP. It is cut by a plane bisecting the axis and inclined at 30° to the base. Draw front view, sectional top view and true shape of the section. Also draw the development of the lower part of the pyramid.(15 marks) 6 (a) A cylinder with 50mm diameter of its base and axis measuring 70mm has its axis is inclined to 30° to VP. Draw the projections of the cylinder when the solid is resting on one of the points of the circumference of the base on VP.(6 marks) 6 (b) Draw isometric projection using natural scale. Refer Figure No. 4 (6 marks)