Question

Which of the following statement is incorrect?

(a) Steel conduits are lighter than cast iron pipes

(b) RCC pipes are generally made from 1:2:4 cement concrete with a maximum size of aggregates as 6 mm

(c) RCC pipes and Hume steel conduits are heavy and difficult to handle

(d) Riveted pipes are smoother and stronger than welded pipes

This question was addressed to me in a dream while sleeping

I would like to ask this question from Pressure Conduites topic in section Pressure Conduits, Outlet Works through Dams and Rivers of Irrigation Engineering

Answer 1

Right answer is (d) Riveted pipes are smoother and stronger than welded pipes

Explanation: Steel is strong in tension and even large size diameter pipes can be made of thin shells. They are therefore lighter than cast iron pipes. Welded pipes are smoother and stronger than riveted pipes. But steel pipes get rusted easily and are protected on the inside as well as outside by protective coatings.