Which of the following types of plans is the plan at the roof level?

Windows and almirahs cannot be represented on a plan if it is cut at the plinth level.

_________ are used to represent activity in a network diagram.

The full form of BIS is _____

The symbol given below represents ______

The given symbol represents ______

The symbols marked A and B represent _______ and _______ respectively.

A plan is conventionally cut at the ___