If a roof is used for a purpose other than weather protection, the vent extensions should extend above the roof by at least feet.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false