In case of dry spinning of polymers, the polymer sol... - Solved MCQs & Answer

To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of________?

Ans: (1.2)5/3Read →

MCQ #5130

Anthracite coal ________?

Ans: Burns with short, bluish, yellow-tipped flame producing very little smokeRead →

MCQ #7218

Schmidt number and Lewis number for pure air at atmospheric conditions are respectively________?

Ans: < 1 and ≈ 1Read →

MCQ #962

Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ________ properties?

Ans: ElastometricRead →