With an increase in pressure in gaseous phase chemic... - Solved MCQs & Answer

Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct?

Ans: μ > tan αRead →

MCQ #3474

Window panes of aeroplanes are normally made of________?

Ans: Perspex (PMMA)Read →

MCQ #5560

High temperature carbonisation of coal produces ________?

Ans: None of theseRead →