Engineering Graphics and Design

Bihar Engineering University, Patna

B.Tech 2nd Semester Exam., 2022 (New Course)

Time: 3 hoursCode: 100202Full Marks: 70

Instructions:

The marks are indicated in the right-hand margin.
There are NINE questions in this paper.
Attempt FIVE questions in all.
Question No. 1 is compulsory.

Q.1 Choose the correct answer (any seven):[2 × 7 = 14]

Which type of line is particular to section drawings?
1. Break lines
2. Phantom lines
3. Extension lines
4. Cutting plane lines
Which one of the following is not a reducing scale?
1. 1:1
2. 1:200
3. 5/320
4. 5:6
What type of curve is created by the intersection of a plane parallel to the side of cone?
1. Parabola
2. Hyperbola
3. Ellipse
4. Roulette
The straight line of projection will make an angle with xy line to the angle of plane with the other principal plane.
1. Perpendicular
2. Equal
3. Right angle
4. Zero
The intersection of a plane surface with the horizontal plane is a line and is called
1. horizontal trace
2. vertical trace
3. profile trace
4. trace
The solid having polygon for a base and triangular lateral faces intersecting at a vertex is
1. pyramid
2. prism
3. cone
4. torus
What types of sketch are typically used in the refinement stage of the design process?
1. Isometric
2. Document
3. Oblique
4. Ideation
Inclined planes in a three-view drawing will appear as
1. two surfaces and one edge
2. two edges and one surface
3. three edges
4. foreshortened in each view
The primary difference between the model tab and the layout tab is
1. the model tab is used for drawing in 3D and a layout is used for drawing in 2D
2. the model tab is where you create the drawing and a layout tab represents the sheet that you will plot or print on the color of the background
3. the model tab displays the drawing you are copying from and the layout tab is where you layout the new drawing
4. None of the above
Which of the following is not a property of an object?
1. Line weight
2. Measure
3. Hyperlink
4. Elevation

Q.2 Solve this question :[14]

On a road map, a scale of miles is shown. On measuring from this scale, a distance of 25 miles is shown by a line 10 cm long. Construct this scale to read miles and to measure up to 40 miles. Construct a comparative scale, attached to this scale, to read kilometres "up to 60 kilometres. [1 mile = 1·609 km.]

Q.3 Solve this question :[14]

A thin circular disc of 50 mm diameter is allowed to roll without slipping from upper edge of sloping plank which is inclined at 15° with the horizontal plane. Draw the curve traced by the point on the circumference of the disc.

Q.4 Solve this question :[14]

The line AB is 75 mm long and it is 30° and 40° inclined to HP and VP respectively. End A is 12 mm above HP and 10 mm in front of VP. Draw its projections. The line is in first quadrant.

Q.5 Solve this question :[14]

Determine the true shape of the figure, the top view of which is a regular pentagon of 35 mm sides, having one side inclined at 30° to reference line and whose front view is a straight line making an angle of 45° to reference line.

Q.6 Solve this question :[14]

A square pyramid, base 40 mm side and axis 65 mm long, has its base in the VP. One edge of the base is inclined at 30° to the HP and a corner contained by that edge is on the HP. Draw its projections.

Q.7 Solve this question :[14]

Draw a line diagram as shown, using relative polar coordinate method :

Q.8 Solve this question :[14]

An air-conditioning duct of a square cross-section 70 mm × 70 mm connects a circular pipe of 40 mm diameter through the transition piece. Draw the projections and develop the lateral surface of the transition piece.

Q.9 Solve this question :[14]

Draw the isometric view of a cone, base 40 mm diameter and axis 55 mm long (i) when its axis is vertical and (ii) when its axis is horizontal.