Civil Engineering MCQs

Page No. 3

Bernoulli equation deals with the law of conservation of____________________?


amass


bmomentum


cenergy


dwork


View Answer energy

Cavitation is caused by___________________?


ahigh velocity


bhigh pressure


cweak material


dlow pressure


View Answer low pressure

Principle of similitude forms the basis of__________________?


acomparing two identical equipments


b designing models so that the result can be converted to prototypes


ccomparing similarity between design and actual equipment


dhydraulic designs



Cavitation will begin when______________________?


a the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid


bpressure becomes more than critical pressure


cflow is increased


d pressure is increased



For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal__________________?


aratio of inertial force to force due to viscosity


bratio of inertial force to force due to gravitation


cratio of inertial force to force due to surface tension


dall the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity



Hydrometer is used to determine________________?


aspecific gravity of liquids


bspecific gravity of solids


cspecific gravity of gases


ddensity



Uniform flow occurs when___________________?


a the direction and magnitude of the velocity at all points are identical


bthe velocity of successive fluid pai-ticles, at any point, is the same at suc¬cessive periods of time


c the magnitude and direction of the velocity do not change from point to point in the fluid


dthe fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plsr.e



The upper surface of a weir over which water flows is known is________________?


acrest


bnappe


csill


dcontracta


View Answer sill

The region between the separation streamline and the boundary surface of the solid body is known as_________________?


awake


bdrag


clift


daerofoil section


View Answer wake

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is__________________?


a0.83


b 0.6


c0.4


d0.3


View Answer 0.6

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