BE (First/Second) Semester Exam
(Common to all Branches)
Time: 3 hrs
Maximum Marks: 60
(Common to all Branches)
Time: 3 hrs
Maximum Marks: 60
Instruction to Candidates:
- Section A is compulsory.
- Attempt any five questions from Section B and C.
- Select atleast Two questions from Section B and Two from Section C.
SECTION A (Marks: 2 each)
1. a) When a point is situated in the first quadrant it will be located above the HP and in front of VP. (True / False)
Ans: True. Refer article 8.4 page 8.2 of ED - Basant Agrawal, TMH.
b) What do you mean by single stroke lettering?
Ans: Refer article 2.8 page 2.6 of ED - Basant Agrawal, TMH.
Ans: Refer article 2.8 page 2.6 of ED - Basant Agrawal, TMH.
c) Explain the procedure for working out true shape of surface inclined to HP.
Ans: Refer problem 10.11 page 10.11 of ED - Basant Agrawal, TMH.
Ans: Refer problem 10.11 page 10.11 of ED - Basant Agrawal, TMH.
d) A solid with two identical ends is called ______.
Ans: Prism. Refer Fig. 11.2 page 11.2 of ED - Basant Agrawal, TMH.
e) A cone is generated by the revolution of a ______ about its altitude.
e) A cone is generated by the revolution of a ______ about its altitude.
Ans: Triangle. Refer Fig. 11.4(b) page 11.3 of ED - Basant Agrawal, TMH.
f) What do you understand by Frustum?
f) What do you understand by Frustum?
Ans: Refer Fig. 11.6 page 11.4 of ED - Basant Agrawal, TMH.
g) A ______ is a polyhedron composed of a regular polygon and a number of triangular faces.
g) A ______ is a polyhedron composed of a regular polygon and a number of triangular faces.
Ans: Pyramid. Refer Fig. 11.3 page 11.3 of ED - Basant Agrawal, TMH.
h) The true shape of a section will be seen in the front view of an object when the section plane is ______ to the VP.
h) The true shape of a section will be seen in the front view of an object when the section plane is ______ to the VP.
Ans: Parallel. Refer article 12.4.3 page 12.6 of ED - Basant Agrawal, TMH.
i) Explain the method used for development of a right cone.
i) Explain the method used for development of a right cone.
Ans: Radial line method. Refer article 13.3 page 13.1 of ED - Basant Agrawal, TMH.
j) Intersection of plane surfaces and curves surface gives (Line/Curve/Surface)
j) Intersection of plane surfaces and curves surface gives (Line/Curve/Surface)
Ans: Curve. Refer problem 14.9 page 14.10 of ED - Basant Agrawal, TMH.
SECTION B (Marks: 8 each)
2.(a) Section lines are inclined at ______ angle to ______ line.
Ans: 45 degree, reference. Refer article 7.18 page 7.17 of ED - Basant Agrawal, TMH.
2.(b) Show the following lines schematically and explain their significance: (i) Outline or Object line (ii) Centre line or Locus line
Ans: Refer article 2.5 page 2.3 of ED - Basant Agrawal, TMH.
3. The projection of the ends of a line EF are 60 mm apart, end E is 15 mm above HP and 20 mm in front of VP. End F is 10 mm below HP and 35 mm behind VP. Determine its true length, traces and inclination of the line with the two reference planes.2.(c) Differentiate between first angle projections and third angle projections employed in engineering drawing.
Ans: Refer article 7.7 and 7.9 page 7.5 and 7.7 of ED - Basant Agrawal, TMH.
Ans: Refer Problem 9.52 page 9.53 of ED - Basant Agrawal, TMH.
4. A right circular cone, base 50 mm diameter, axis 65 mm long, when it is resting on HP on a point of its base circle, with axis making an angle 30 degree with HP and plan of the axis 45 degree with VP.
Ans: Refer problem 11.45(b) page 11.45 of ED - Basant Agrawal, TMH.
5. A pentagonal pyramid of base 35 mm and height 60 mm rests with its base on HP such that one of its base edges is perpendicular to VP. A section plane inclined at 45 degree to HP and perpendicular to VP cuts the pyramid through its axis at 25 mm from the apex. Draw the sectional front and top views and true shape of the section.
5. A pentagonal pyramid of base 35 mm and height 60 mm rests with its base on HP such that one of its base edges is perpendicular to VP. A section plane inclined at 45 degree to HP and perpendicular to VP cuts the pyramid through its axis at 25 mm from the apex. Draw the sectional front and top views and true shape of the section.
Ans: imilar to problem 12.19 page 12.21 of ED - Basant Agrawal, TMH.
SECTION C (Marks: 8 each)
6. A square prism of base 45 mm and height 20 mm rests centrally on the top face of a cylinder of 60 mm diameter and 30 mm height. Draw the isometric projects of the combined solid.
Ans: Refer problem 15.20 page 15.16 of ED - Basant Agrawal, TMH.
7. What are the uses of freehand sketching in engineering field? Describe the steps to be followed in sketching a square.
7. What are the uses of freehand sketching in engineering field? Describe the steps to be followed in sketching a square.
Ans:
8. Draw the development of the cone having base diameter 40 mm and axis height 50 mm. The cone has been cut by a straight section plane parallel to its base at a distance of 30 mm from its base.
Ans: Refer article 13.6 page 13.6 of ED - Basant Agrawal, TMH.8. Draw the development of the cone having base diameter 40 mm and axis height 50 mm. The cone has been cut by a straight section plane parallel to its base at a distance of 30 mm from its base.
9. A vertical cylinder of 50 mm diameter and height 70 mm, is standing on its base on HP and with the axis perpendicular to HP. It is completely penetrated by another horizontal a cylinder of 45 mm diameter and 80 mm long. The axis of the horizontal cylinder is parallel to VP and the two axes bisect each other. Draw the projections showing curves of intersection.
Ans: Refer Problem 14.6 page 14.7 of ED - Basant Agrawal, TMH.
