What is the paper size of Mechanical C?

The paper size known as Mechanical C measures 22 inches by 17 inches. This size is commonly used in engineering and architectural drawings, suitable for medium-sized layouts that require detail without being unwieldy. The dimensions of 22 X 17 inches allow for a good balance between space for content and manageability, making it a preferred choice for technical designs.

The other options present different sizes: 34 X 22 inches, which is a larger format often referred to as Mechanical D; 44 X 34 inches, known as Mechanical E; and 297 X 210 millimeters, which corresponds to A4 size and is used in standard office applications but not in the mechanical drawing context. This makes choice B the only correct representation of the Mechanical C paper size.