Narsimha Reddy Engineering College(Approved by AICTE & Permanently Affiliated to JNTUH, Hyderabad)

(Accredited by NAAC with A grade)Maisammaguda, Secunderabad - 500014

ENGINEERING GRAPHICS QUESTION BANK (I MID)

1. Construct an ellipse, when the distance of the focus from the directrix is equal to 50mm and eccentricity is 2/3. Also draw tangent and normal to the curve at a point 70 mm from the directrix.

2. Construct a parabola, when the distance of the focus from the directrix is 60mm. Also draw tangent on normal to the curve at a point 50 mm from the directrix.

3. Construct a hyperbola, when the distance of the focus from the directrix is 65mm and eccentricity is 3/2. Also draw tangent and normal to the curve as a point 75mm from directrix.

4. Construct a rectangular hyperbola, when a point P on it is at a distance of 30mm and 50mm from two asymptotes.

5. Construct a cycloid having a rolling (generating) circle diameter as 50mm. Draw a normal and a tangent to a curve at a point 35mm above the base line.

6. Draw epicycloids of a circle of 40mm diameter, which rolls outside on another circle of 120mm diameter for one revolution clockwise. Draw a tangent and a normal to it at a point 95mm from the centre of the directing circle.

7. Draw a hypocycloid of a circle of 60mm diameter, which rolls inside another circle of 100mm diameter, for one revolution counter clockwise. Draw a tangent & a normal to it at a point 50 mm from the centre of the directing circle.

8. Draw the involute of a circle of 50mm diameter. Also, draw a normal & a tangent to the curve at a point 100mm from the centre of the circle.

9. Draw the Involute of a hexagon of side 20mm & draw a tangent & normal to the curve at 100mm from the centre of hexagon.

10. An area of 400 cm2 on a map represents an area of 25 m2 on a field. Construct a diagonal scale to measure up to 5 km and show a distance of 3.56 km on it.

11. Construct a Diagonal Scale of R.F = 1/32, showinf Yards, Feet and Inches and to measure upto 4 yards. Show 1 Yard 2 Feet 7 Inches on it.

12. Construct a vernier scale of 1:40 to read meters, decimeters and centimeters and long enough to measure up to 6m. Mark a distance of 4.36 m on it.

13. On a map a rectangle of 125 cm x 200 cm represents an area of 6250 square kilometers. Draw a backward vernier scale to show decameter and long enough to measure up to 7Km. Show a distance of 5.43 Km on it.

14. Draw the projections of the following points on the same ground line, keeping the projections 25mm apart.

a. A, in the H.P & 20mm, behind the V.P b. B, 40mm above the H.P & 25mm in front of the V.P.c. C, in the V.P & 40mm above the H.P.d. D, 25mm below the H.P & 25mm behind the V.P.e. E, 15mm above the H.P & 50mm behind the V.P.f. F, 40mm below the H.P & 25mm in front of the V.P.g. G, in both the H.P & the V.P.

15. Two pegs fixed on a wall are 4.5m apart. The distance between the pegs measured parallel to the floor is 3.6m. If one peg is 1.5m above the floor, find the height of the second peg and the inclination of the line joining the two pegs, with the floor.

16. A line AB, 75mm long, has its ends A in the H.P and 20 mm infront of the V.P. It is inclined at 450 to the H.P and at 300 to the V.P. Draw the projections and also Traces.

17. A line PQ 120mm long, is inclined at 300 to the H.P. and 450 to the V.P. Its midpoint is in the V.P. and 20mm above the H.P. Draw its projections, if its end P is in the third quadrant and Q is in first quadrant.

18. Three lines oa, ob and oc are respectively 25 mm, 45 mm and 65 mm long, each making 1200 angles with the other two and the shortest line being vertical. The figure is the top view of the three rods OA, OB and OC whose ends A, B and C are on the ground, while O is 100 mm above it. Draw the front view and determine the length of each rod and its inclination with the ground.

19. Draw the projections of a circle of 50mm diameter resting in the HP on a point A on the circumference, its plane inclined a 450 to the HP and

(a) the top view of the diameter AB making 300 angle with the VP.(b) the diameter AB making 300 angle with the VP

20. Draw the projections of a regular hexagon of 25mm side, having one of its sides in the HP and inclined at 600 to the VP and its surface making an angle of 450 with the HP.

21. A semi-circular lamina of 80 mm diameter has its straight edge in the VP and inclined at an angle of 450 to HP. The surface of the lamina makes an angle of 300 with VP. Draw the projections.

22. A pentagonal plane with a 30 mm side has one of its corner in the V.P. and the surface is inclined at 300 to the V.P. The edge of the plane opposite to that corner is parallel to V.P. and inclined at 450 to the H.P. Draw its projections.

VERY IMPORTANT INSTRUCTIONS:

Everyone should come with a drawing book, with all above 22 Problems drawn neately and accurately.

Everyone needs to submit all the sheets upto projections of planes, in a file. Attendance is mandatory for everyone, Absence will be taken very seriously,

( will be awarded zero marks for I Mid & Punshment also applicable) No one can enter in the Drawing Hall for I Mid Exam, without following:

1. All the Drawing Instruments2. Empty Drawing Sheet3. Compleated Drawing file with 1 sheet to 14th sheet.4. Compleated Drawing book with above 22 problems.