Chemical Engineering MCQs

Page No. 174

Buoyant force__________________?


aFor non-symmetrical bodies is not vertical

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bDepends on the depth of the submergence of the floating body

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cDepends on the weight of the floating body

✓


dNone of these

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


aOpened

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bClosed

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cEither opened or closed; it does not make any difference

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dEither opened or closed; depending on the fluid viscosity

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View Answer Closed

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


aMass

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bEnergy

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cBoth A. & B.

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dMomentum

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View Answer Momentum

Open channel liquid flow is most conveniently measured by a__________________?


aHot wire anemometer

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bNotch

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cRotameter

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dSegmental orifice

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View Answer Notch

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


aRotameter

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bPitot tube

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cV-notch

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dAll A., B. and C.

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View Answer Rotameter

Which of the following is not dimension-less ?


aFroude number

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bKinematic viscosity

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cPressure co-efficient

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dNone of these

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View Answer Kinematic viscosity

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


aSubmerged body

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bDisplaced volume of the fluid

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cVolume of fluid vertically above the body

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dHorizontal projection of the body

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


aHigh density

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bLow compressibility

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cLow capillary action

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dVery low vapor pressure

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Surge tanks are provided in high pressure water pipelines to___________________?


aStore a definite quantity of water all the time

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bReduce the water hammer

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cFacilitate easy dismantling of pipeline for cleaning and maintenance

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dNone of these

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


aHyperbolic

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bParabolic

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cLinear

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dNone of these

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View Answer Parabolic

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