Question

Stone grits used for 1st coat and 2nd surface painting may be precoated in advance with advance with bitumen.

(a) True

(b) False

I had been asked this question in a job interview.

Question is taken from General Specifications of Modern Road topic in division Specifications, Estimation of Quantities of Materials and Transport of Civil Engineering Drawing

Answer 1

Correct answer is (a) True

Easiest explanation: Precoating prevents separation and disintegration of grits and improves the life of the road. For precoating stone grits 12kg to 16 kg of asphalt or road tar per cu m of grit may be used.