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You Are On Multi Choice Question Bank SET 387

19351. A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is





19352. The contraction co-efficient for Borda's mouthpiece (for frictionless fluid) is





19353. Purpose of air lift pump is to





19354. Pick out the correct statement pertaining to venturimeter.





19355. For very low pressure and high discharge rate, the compressor used is a/an __________ compressor.





19356. Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.





19357. The main factor on which the behaviour of a mass of fluidised solid depends mainly is the





19358. What is the speed of sound (m/sec) in ordinary water ?





19359. Two piping system are said to be equivalent, when the __________ are same.





19360. Potential function is applicable only for __________ flow.





19361. Which of the following exemplifies a three dimensional fluid flow ?





19362. Volute of a centrifugal pump should be designed in a fashion, such that the





19363. The head loss due to sudden contraction is proportional to





19364. Cavitation occurs in a centrifugal pump when the suction pressure is





19365. An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic ?





19366. The capacity of a centrifugal pump Can be increased by increasing the





19367. Which law is followed by the velocity distribution in the turbulent boundary layer?





19368. The losses in open channel flow generally vary as the





19369. Rise of liquid in a capillary tube is due to





19370. Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss ?





19371. For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).





19372. Which of the following has the maximum compression ratio ?





19373. Scale up of agitator design requires





19374. The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by





19375. The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe)





19376. Unsteady non-uniform flow is represented by flow through a/an





19377. In hot weather we sit under the ----------of a tree





19378. Prandtl number is a measure of the





19379. It is a----------to meet you





19380. A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, then the new head will be __________ metres.





19381. She----------tomorrow to attend the wedding





19382. In hindered settling, the particles are





19383. A peson blamed for a problem





19384. A globe valve is the most suitable for applications, in which





19385. Gita broke the glass,------?





19386. __________ isused for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline.





19387. Govind spends------------weekends at a holiday resort





19388. One stoke (unit of kinematic viscosity) is equivalent to





19389. Give one word for non professional or unpaid





19390. Air vessel of a reciprocating pump is initially filled with





19391. Select the correctly spell word





19392. The ratio of inertial forces to gravity forces is called the __________ number.





19393. Power required by a centrifugal pump is proportional to (where, D = diameter, N = r.p.m)





19394. ---------the traffic was bad,I arrived on time





19395. Raju said,’I wrote a letter’.(Change into indirect speech)





19396. Equivalent length of a pipe fitting is





19397. Capital’D’is used for





19398. Buckingham-π theorem states that in any physical problem including 'n' quantities having 'm' diamensions, the quantities can be arranged into __________ independent dimensionless parameters.





19399. After the interrogation mark------------should be left.





19400. A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid.





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