The ratio of press force required to punch a square hole of $$30$$ $$mm$$ side in a $$1$$ $$mm$$ thick aluminium sheet to that needed to punch a square hole of $$60$$ $$mm$$ side in a $$2$$ $$mm$$ thick aluminium sheet is________.

The limits of a shaft designated as $$100h5$$ are $$100.000$$ $$mm$$ and $$100.014$$ $$mm.$$ Similarly, the limits of a shaft designated as $$100h8$$ are $$100.000$$ $$mm$$ and $$100.055$$ $$mm.$$ If a shaft is designated as $$100h6,$$ the fundamental deviation (in $$\mu m$$ ) for the same is

The roughness profile of a surface is depicted below.

The surface roughness parameter $${R_a}\,\,$$ (in $$\mu m$$) is ________________.

A beam is subjected to an inclined concentrated load as shown in the figure below. Neglect the weight of the beam.

The correct Free Body Diagram of the beam is