Dear candidates you will find MCQ questions of Fluid Mechanics and Machinery here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Explanation: if the flow rate is doubled, the head loss increases by a factor of four. since, the head loss is directly proportional to the square of the flow rate. option (d) is the correct option.
Explanation: relative roughness is defined as the quantity used to measure the roughness
Explanation: when pipes of different diameters are connected at its ends to form a pipe, this pipe so developed is called as pipes in series. they might not have to be of the same diameters. but, having the same diameters are better as it avoids the losses so developed.
Explanation: when the pipes of different diameters are connected in series from end to end to form a pipe line. the total loss so developed is equal to the sum of local losses
Explanation: total head loss for a system is equal to the height difference of the reservoirs. height difference is denoted by the letter ‘h’. total head loss can be equated
Explanation: a model test was conducted to determine this relation. the force and velocity that were measured in the model are to be scaled. this helps to find the force that can be expected for a real-time application.
Explanation: diffusivity is defined as the
Explanation: the standard symbol for archimedes number is ar. archimedes number in fluid mechanics deals with the motion of fluids. this takes place due to the differences in their densities. it was followed by the archimedes principle.
Explanation: the standard symbol for atwood number is a. atwood’s number in fluid mechanics deals with the onset of instabilities in mixtures of fluid. it is due to the density differences in fluid.
Explanation: the standard symbol for blake number is b or bl. blake number in fluid mechanics deals with geology, fluid mechanics and porous media. it is due to the inertial over the viscous forces in fluid flow through porous media.
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