Question

The question figure shows the 3D view of an object. Looking in the direction of arrow identify the correct view.

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

Project the object onto a vertical plane perpendicular to the arrow: the circle on the front face and the roof outline must appear, and no edge that does not exist may be drawn.

Answer 1

The Correct Option is C

Looking in the direction of the arrow we face the front wall that carries the circular hole, so the circle is seen as a true circle.
The roof above this wall is a pyramid-type (hipped) top: in the front view it gives a triangle whose sloping edges are already the sides of the triangle, so no extra line is drawn inside it. This rejects option (1), which shows a vertical ridge line through the triangle.
To the right the stepped body shows its outline as a single step. Option (2) adds an extra small vertical edge at the right-hand step and option (4) adds a slanting edge at the bottom corner of the box; neither edge exists on the object.
Option (3) shows the plain triangle, the circle on the front wall and the correct stepped outline.
Answer: (3) the third view