Question

What is not a part of a window?

• A. Sill
• B. Mullion
• C. Jamb
• D. Lintel beam

Hint:

Remember: Window parts are mostly frame-related (sill, mullion, jamb), whereas the lintel beam is a supporting structural member above openings.

Answer 1

The Correct Option is D

A window consists of several key parts that together form its frame and structure:

• Sill: This is the horizontal bottom part of the window frame. It supports the window and provides a surface for the window to rest on.
• Mullion: These are the vertical or horizontal bars that divide the window into smaller panes or sections. Mullions add structural support and aesthetic design.
• Jamb: The jambs are the vertical sides of the window frame. They hold the window in place and provide a surface for attaching window components such as sashes or hinges.

On the other hand, the Lintel beam is a structural element usually made of wood, steel, or reinforced concrete, placed horizontally above the window or door opening. Its function is to bear the load of the wall or structure above the opening, distributing weight to the sides and preventing collapse.

The lintel beam is part of the building’s overall structure and not a direct component of the window assembly itself.