Chemical Engineering Quiz 1 Welcome to Shaheen Leader Academy We expect 100% result. Click on Start Button. Your time is Ended. Thanks Chemical Engineering Chemical Engineering Quiz 1 / 25 Practical fluids:- possess all the properties are viscous possess surface tension 2 / 25 A forces vortex occurs when fluid rotates as a solid about an axis:- True False 3 / 25 With the increase in temperature , Viscosity of a liquid:- Remain same Increase Decrease 4 / 25 The value of critical Reynold number for pipe flow is:- 10,000 1300 100,000 5 / 25 Higher specific speed of a centrifugal pump indicate that the pump is of _____________ flow type:- mixed radial axial 6 / 25 The Reynold number for an ideal fluid flow is:- 4 Infinity 2100-4000 7 / 25 For ideally incompressible fluid , the Mach number will be:- 1.5 1 0 5 8 / 25 A stream line is fixed in space in steady flow:- True False 9 / 25 Inclined tube manometer is used for the measurement of _____________ pressure:- Atmospheric Small differential Absolute 10 / 25 Each term in Bernaulli's equation represent the _________ of the fluid:- force per unit mass energy per unit mass energy per unit weight 11 / 25 Stagnation point is the point in fluid mechanics where the velocity of the fluid at that point is _______________:- Zero Constant Infinite Unity 12 / 25 Which of the following is dimensionless:- Fanning friction factor Angular velocity Specific volume 13 / 25 Fluid flow through a packed bed is represented by the ____________ equation:- Ergun's None Both Fanning 14 / 25 A fluid is pumped at the rate of 10lb /sec to a height of 55 ft. The horse power required is _____________ hp;- 5.5 1 1/55 10/55 15 / 25 The contraction coefficient for Borda's mouthpiece is:- 0.1 1 0.5 16 / 25 The tendency of a liquid surface to contract is due to the ____________:- Viscosity Adhesion Cohesion Surface tension 17 / 25 If a person studies about a fluid which is at rest, what will you call his domain of study;- Fluid dynamics Fluid Mechanics Fluid Statics 18 / 25 The viscosity of water at 20°C is:- One centistoke One centipoise One poise One stoke 19 / 25 For pipe flows , head is proportional to ____________ at constant capacity:- 1/D 5 1/D 1/D² 20 / 25 Sewage sludge is _______________ type of non Newtonion fluid:- Pseudoplastic Dilatent Bingham plastic 21 / 25 Cavitation can be prevented by maintaining the suction head sufficiently greater than vapour pressure:- False True 22 / 25 Friction losses in pipe fitting are generally expressed in term of velocity heads:- True False 23 / 25 Liquid :- Can not be compressed Occupy definite volume not affected by change in pressure and temperature none of them 24 / 25 Hot wire anemometer is used to measure the:- Velocity of liquids Velocity of gase Temperature of liquid 25 / 25 The friction factor for turbulent flow in a hydraulic smooth pipe:- depend on roughness depend on Reynold number does not depend on Reynold number Your score is Restart quiz Subscribe our Channel Here