The type of pointing in which upper side of mortar joints is kept about 12 mm inside the face of the masonry and bottom is kept flushed with face of wall, is
A. Truck pointing
B. Recessed pointing
C. Struck pointing
D. Grooved pointing
Answer: Option C

Struck Pointing: Upper side is pressed 12 mm inside the masonry face; bottom is flush.
Recessed Pointing: The mortar is pressed uniformly back from the wall face by about 6 mm or more to leave a square hollow.
Grooved Pointing: A semi-circular groove is made in the center of the flush joint using a specialized tool.
Tuck Pointing: A groove is cut in the center of a flush joint and filled with white lime putty to create a thin, neat line.
This is a modification of flush pointing in which the face the pointing is kept inclined, with its upper edge pressed inside the face by 10mm which drains water easily.