Question

The problem figure shows the top view of an object. Identify the correct elevation amongst the answer figures looking in the direction of arrow.

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

The arrow is at the bottom, so the bottom row of the plan is nearest; project each shape upwards and let near shapes overlap the far ones.

Answer 1

The Correct Option is A

Step 1: The plan shows three wide rectangles in the back row, a mid rectangle and a small rectangle in front, and four triangles.
Step 2: Project the plan on to the vertical plane. The left group has the left back block with three triangular prisms in front of it, two of them overlapping it and one standing alone to its right.
Step 3: The middle group has the middle back block with a lower rectangular block in front of it, so one smaller box appears inside the outline of the larger one.
Step 4: The right group has the right back block, then a smaller block in front, then the nearest small block, and the upright triangular prism at the extreme right.
Step 5: Only option (1) has all of these: the left cluster with vertical lines of the triangular prisms, the box inside the larger box in the middle, and the layered group of three boxes plus the separate box at the right. Option (3) is missing the layered group and option (2) shows single boxes.
Answer: (1) the figure in option 1