Fluid Mechanics MCQs
Practice free Fluid Mechanics multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 815 questions — no login required.
Question 64hard
If the head over the triangular notch is doubled, the discharge will increase by __________ times.
Question 65hard
Which of the following pipe bends will incur the largest head loss ?
Question 66hard
The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.
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Question 67medium
The distance between metacentre and __________ is called metacentric height.
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Question 70hard
Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is
Question 71medium
Foot valves are provided in the suction line of a centrifugal pump to
Question 72hard
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.