ANS:B - condensate

A trap is used to remove: b) condensate Condensate is the liquid water formed when steam condenses within a steam pipe line. A steam trap is a device used to automatically remove condensate and non-condensable gases from steam lines while allowing steam to pass through freely. Therefore, the primary function of a trap is to remove condensate from steam pipe lines to maintain efficient steam distribution and prevent water hammer or other issues caused by the presence of liquid water in the steam system.