Physics MCQs

Page No. 26

Concentration of red cells in blood is about______________?


a25%


b40%


c50%


d75%


View Answer 50%

Blood vessels are______________?


aRigid


bNot rigid


cOf glass


dOf rubber


View Answer Not rigid

Speed of efflux can be determined by applying______________?


aBernoulli’s theorem


bTorricelli’s theorem


cVenture relation


dAll



Velocity of fluid increases where the pressure is________________?


aLow


bHigh


cConstant


dChanges continuously


View Answer Low

The equation of continuity is obtained by applying in the law of conservation of_____________?


a Mass


bEnergy


c Momentum


dAll


View Answer Mass

According to equation of continuity A1V1 = A2V2 = constant. The constant is equal to_______________?


aFlow rate


bVolume of fluid


cMass of fluid


dThe density of the fluid


View Answer Flow rate

Irregular flow of fluid is called_______________?


aStreamline


bTurbulent


cUniform


d Laminar


View Answer Turbulent

When fluid is incompressible then________________?


aThe velocity of the fluid is constant


bThe flow of the fluid is the straight line


c The density of the fluid is constant


d The volume of the fluid is constant



The drag force is given by_________________?


aNewtons law


bPascals law


cGauss law


d Stokes law


View Answer Stokes law

The flow of ideal fluid is always_______________?


a Turbulent


b Streamline


cIrregular


d Straight line


View Answer Streamline

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