Chemical Engineering MCQs

Page No. 174

Buoyant force__________________?


aFor non-symmetrical bodies is not vertical


bDepends on the depth of the submergence of the floating body


cDepends on the weight of the floating body


dNone of these



While starting a centrifugal pump, its delivery valve should be kept___________________?


aOpened


bClosed


cEither opened or closed; it does not make any difference


dEither opened or closed; depending on the fluid viscosity


View Answer Closed

The Navier-Stokes equation deals with the law of conservation of___________________?


aMass


bEnergy


cBoth A. & B.


dMomentum


View Answer Momentum

Open channel liquid flow is most conveniently measured by a__________________?


aHot wire anemometer


bNotch


cRotameter


dSegmental orifice


View Answer Notch

Which of the following may be termed as a variable orifice flow-meter ?


aRotameter


bPitot tube


cV-notch


dAll A., B. and C.


View Answer Rotameter

Which of the following is not dimension-less ?


aFroude number


bKinematic viscosity


cPressure co-efficient


dNone of these


View Answer Kinematic viscosity

The line of action of the buoyant force passes through the centre of gravity of the_______________________?


aSubmerged body


bDisplaced volume of the fluid


cVolume of fluid vertically above the body


dHorizontal projection of the body



Mercury is an ideal barometric fluid mainly due to its __________________?


aHigh density


bLow compressibility


cLow capillary action


dVery low vapor pressure



Surge tanks are provided in high pressure water pipelines to___________________?


aStore a definite quantity of water all the time


bReduce the water hammer


cFacilitate easy dismantling of pipeline for cleaning and maintenance


dNone of these



The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is_______________________?


aHyperbolic


bParabolic


cLinear


dNone of these


View Answer Parabolic

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