Download MBBS TMU Final Year 2015 MBBS404B General Surgery II Question Paper

Answer ALL questions in Part A

1. 1. Define representative fraction.
   2. What is the difference between first angle and third angle projection?
   3. Define Trace of a straight line.
   4. What are the applications of isometric projections?

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   5. What is a frustum of a solid?
   6. Define section plane.
   7. What is an auxiliary view?
   8. Name any four CAD software.
   9. What is the use of layers?

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   10. Define user coordinate system.

PART – B

(5 x 10 = 50 Marks)

Answer any FIVE questions from Part B

2. Draw an ellipse by using arcs of circles method; given the major axis is 120mm and the minor axis is 80mm.

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3. A line AB 80mm long has its end A 20mm above HP and 25mm in front of VP. The other end B is 50mm above HP and 80mm in front of VP. Draw the projections of the line and determine its inclinations with HP and VP.
4. A regular pentagonal lamina of 30 mm side rests on one of its corners on HP such that the plane of the lamina makes an angle of 45° with the HP. The two sides containing the corner on which the lamina rests make equal inclinations with the HP. The top view of the lamina has one of its sides perpendicular to the VP. Draw its projections.
5. A cone, base 75 mm diameter and axis 100 mm long, has its axis parallel to the VP and inclined at 45° to the HP. Draw the projections of the cone when the vertex is away from the observer.
6. A hexagonal pyramid, base 30 mm side and axis 70 mm long, rests with its base on the HP such that one of the edges of the base is perpendicular to the VP. It is cut by a section plane perpendicular to the VP and inclined at 30° to the HP, cutting the axis at a point 40 mm from the base. Draw the sectional top view and develop the lateral surface of the truncated pyramid.
7. Draw the isometric view of a pentagonal pyramid, base 40 mm side and axis 70 mm long, resting with its base on the HP and an edge of the base parallel to the VP.

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8. 1. Explain the creation of different 2D entities in CAD with neat sketches.
   2. What are the various methods of modifying 2D entities in CAD? Explain with neat sketches.

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