The orthographic projection shows a front view (top box) and a top view (bottom box).

Here are the answers to the questions:

1) The orthographic projection shows a front view (top box) and a top view (bottom box).
The front view shows a large rectangle with a smaller rectangle centered on top.
The top view shows a large rectangle with a line in the middle, indicating the width of the smaller, raised feature.
This describes an object that is a rectangular base with a smaller, rectangular block placed centrally on top.
When viewed from the right end, you would see the total height of the object and its depth. This would appear as a simple rectangle.
The correct option is E.

2) Given angles $X = 45^\circ$ and $Y = 45^\circ$.
The sum of these angles