Question

The process of making the back ground rough, before plastering, is ___________

(a) dubbing

(b) peeling

(c) blistering

(d) hacking

The question was posed to me by my school principal while I was bunking the class.

This interesting question is from Finishing Work in division Rules and Methods of Measurement of Civil Engineering Drawing

Answer 1

Correct choice is (d) hacking

For explanation: Hacking is done on the finished wall before application of plaster of paris or tiles. It is the process of roughening the wall surface so that plaster can rest on it otherwise it would get shear off due to plane surface of the wall. Generally it is adopted for renovation purpose (applying POP). Earlier mason prepare it with cement plaster and later on if owner wants to renovate wall of their house with tiles or POP they use this process called hacking. There are lot of methods to do it but generally, it is been done by chisel.