Which of the following reasons is not a type of mortar?

The anchors provided for timber floors and roofs should be at intervals of less than ______ meters in two-storeyed build…

___________ has presented the results of structural analysis based on calculated masonry method in the form of nomograms…

The effective thickness of a ______ column is equal to the actual thickness.

A mortar with good water retentivity readily loses water.

A ______ is a wall which separates adjacent buildings belonging to different persons.

Effective height of a masonry wall is calculated using equation h = ρH where ρ represents ______

Which type of mortar has the lowest strength?