Author name: Admin

2008. Lead pipe is

Especially resistant to solutions containing H₂SO₄
Usually joined by burning (e.g. by melting to adjacent pieces with a torch)
Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain
All of the above
✅ The correct answer is option D.

2019. Karbate is

A mixture of iron dust and saw dust
Carbon impregnated with resin (usually bakelite)
An acid resistant material
Both B and C
✅ The correct answer is option D.