CIVIL ENGINEERING HYDRAULICS & FLUID MECHANICS MCQ’s

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if

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Bernoulli's equation assumes that

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The shear stress distribution in viscous fluid through a circular pipe is

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A piezometer opening in pipes measures

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An ideal flow of a liquid obeys

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The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is

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The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called

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The weight per unit volume of a liquid at a standard temperature and pressure is called

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The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called

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Falling drops of water become spheres due to the property of

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The pressure less than atmospheric pressure is known as

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A piezometer tube is used only for measuring

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Cavitation is caused by

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Due to decrease of diameter of the droplet, inside pressure intensity

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In a centrifugal pump casing, the flow of water leaving the impeller, is

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From a nozzle exposed to atmosphere, the liquid jet traverses

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Fluids change the volume under external pressure due to

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Shear stress is directly proportional to

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A fluid particle may possess the displacement of

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The value of momentum correction factor (β) for a laminar flow through a circular pipe, is

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A non-uniform steady flow is through

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An ideal fluid is

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The point at which the resultant pressure on an immersed surface acts, is known as

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A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance

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The stability of a dam is checked for

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If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in

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A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

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A flow in which the quantity of liquid flowing per second is constant, is called

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A flow through an expanding tube at constant rate is called

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Bernoulli's equation is applied to

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An average value of coefficient of velocity is

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A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

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Equation of continuity of flow is based on the principle of conservation of

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'Flow net' can be drawn only if the flow is

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The unit of the viscosity is

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An ideal fluid

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The frictional resistance of a pipe varies approximately with

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The viscosity of water at 20? C is

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Bulk modulus of a fluid is the ratio of

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To product of mass and acceleration of flowing liquid is called

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