Chemical Engineering

Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.

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6591. Pick out the wrong statement about a streamline.

It is always parallel to the main direction of the fluid flow
It is a line across which there is no flow and it is equivalent to a rigid boundary
Streamlines intersect at isolated point of zero velocity and infintie velocity
The fluid lying between any two streamlines can be considered to be in isolation and the streamline spacing varies inversely as the velocity
✅ The correct answer is option A.

6599. In turbulent flow, the

Fluid particles move in an orderly manner
Momentum transfer is on molecular scale only
Shear stress is caused more effectively by cohesion than momentum transfer
Shear stresses are generally larger than in a similar laminar flow
✅ The correct answer is option D.