Engineering Graphics-1 - Dec 2015

First Year Engg (Semester 1)

TOTAL MARKS:
TOTAL TIME: HOURS

Solve any one question from Q1 and Q2

1 The top view and front view of a straight AB measures 70 mm and 58 mm respectively. The straight line AB is inclined at an angle of 35° to horizontal plane. The end A is 15 mm above horizontal plane and 12 mm in front of vertical plane. The other end B is in the first quadrant. Draw the projections of the straight line AB. Find its true length and true inclination with vertical plane, also show its vertical and horizontal traces.(12 marks) 2 A circle of 50 mm diameter is resting on HP on end A is diameter AC which is 30° inclined to HP while it makes 45° inclined to VP. Draw its projections.(12 marks)

Solve any one question from Q3 and Q4

3 A hexagonal prism of base 25 mm and 15 mm long is positioned with one of its base edges on HP such that the axis is inclined at 30° to HP and 45° to VP. Draw its projections.(13 marks) 4 (a) Point P is 40 mm and 30 mm from horizontal and vertical axes respectively. Draw Hyperbola through it.(7 marks) 4 (b) A right circular cone of base diameter 50 mm and axis height 60 mm has it is base in horizontal plane. Draw the development of the lateral surface of cone.(6 marks)

Solve any one question from Q5 and Q6

5 Using first angle method, draw the following views for the object shown in Fig. 1:
(a) Sec. Elevation (Section A-A)
(b) Plan
(c) LHSV
(d) Give all dimensions. (13 marks) 6 Using first angle method, draw the following views for the object shown in Fig. 2:
(a) Elevation from the direction of arrow
(b) Plan
(c) Sectional right hand side view (Section A-A)
(d) Give all dimensions. (13 marks)

Solve any one question from Q7 and Q8

7 Fig. 3 show front view, top view, side view. Draw its isometric view by natural scale and show overall dimensions. (12 marks) 8 Fig. 4 shows front view, top view. Draw its isometric view by natural scale and show overall dimensions. (12 marks)