Op gupta chemical engineering objective book free download pdf

Chemical Engineering Thermodynamics : Process Equipment Design ; Chemical Engineering Plant Economics a Refractory Technology i ad " Environmental Engineering : s 20; Polymer-Technology 5 : This is, Ww. For concentrating an aqueous solution ofa inaterial like anhydrous NazSO«, whose solubility decreases with rise in tempera- ture, the most suitable evaporator is Bavnsnnen VAporator. Rate «7 crystallisation does not depend tapon the ; a extent of supersaturation.

In tuzbulentifow, 2 the Quid particles move in an orderly menner. Turbulent flow generally occurs for cases involving m a highly viscous fuia 6 verynarrow issages c very slowmotion none ofthese Which of the following must be followed by the flow ofa fluid real or ideal?

The value f-eritical Reynolds number for pipe flows. Boundary layer separation is caused by a. The friction factor for turbulent flow in hydraulically smooth pipe a depends only on Reynolds number. Fora given Reynolds number, ina hydraulic, cally smooth pipe, further smoothen: Ingienwnathe friction factor. For laminar flow through a closed conduit a.

The friction factor for rough pipe is fivand that for smooth pipe is fz. Pick out the correct relationship.. Pressure drop in flow is given by. Force acting on a particle settling in fluid are a : gravitational and buoyant forces. In hitidered settling, particles ar- a placed farther from the wall. In continuous fluidisation a. Cavitation can be prevented by a bly designing the pump.

Priming is needed in B Plunger pumps are used for a higher pressure an tats 6. Tohandle smaller quantity of fluid at higher discharge pressure, use a The maximum head that ctin bedeveloped by a single impeller i SRT e Ca. Va The discharge through a rectangular weir varies as ay HY?

Power number is the ratio of a drag stress to inertial stress. Froude number is not a factor a for Reynolds number greater than The valve used foryery remote and ac curate control of fluid is a A piezometer provided in pipe measures A 2" gate valve fitted in a pipe is replaced by a similar globe valve.

Pressure drop in gate valve was dp. For the same discharge, the pressure drop across globe valve is a Ap. Co-efficient of velocity is Function of air vessel provided in a reciprocating pump is to a reduce discharge fluctuation, 0 reduce the daniger of cavitation. The head loss in turbulent flow in a pipe. The continuity equation a relates mass flow rate along a stream tube. Fora specificcentrifugal air blower operat: ing at constant speed and capacity, the Power requirement and pressure vary.

Differential manometer measures - a atmospheric pressure 8 subsatmospheric pressure c pressure differerice between two points a none of these oo , Velocity distribution for flow between two fixed parallel plates a varies parabolically across the seetion.

A centrifugal pump loses prime after start- ing. Reciprocating pumps compared to. The most ecoriomical valve for use with large diameter pipes is a butterily valve 6 globe valve te ngedle valve d none of these Which of the following factors does not cbn- tribute to the presscre drop in a pipeline? Which ofthe following can be used to create a flow of gas where no significant compres, Sion is required? Which of the followingsvalves will incur maximum pressure drop for the same diss charge of water?

While starting an axial flow, pump, its delivery valve should be kept a open — b closed c either open or close: d none of these IC its speed is halved, then the new head will b 4 55 , Inquestion No.

Pipes having diameter 14 inches or more are designated by their a : outside diameter d inside diameter c , schedule number d none of these , Disc compensators are provided in large diameter gas carrying pipelines to a keep the pipe in proper orientation.

Mominal Pipe Size NPS of a pipe less than 12 inches in diameter indicates its a inner diameter 6 outer diameter c thickness neither inner nor outer diameter When the water is warm, the height td which it can be lifted by a pump a decreases due to reduced viscosity. Volute type of casing is pase toed ina centrifugal pump to a convert velocity head to pressure head. A pump operating under specific condi- tions delivers insufficient quantity of liq- uid. The pump used for irrigation purposes is.

A c pumping industrial wastes. With increase in the schedule number of a pipe ofa particular nominal size a the wall thickness also increases. D, of the pipe remains constant. Fanning friction factor equation applies to the uid flow.

Check in a centrifugal piamp is a provided in the discharge line. Cavitation in a centrifugal pump resulis from a high discharge pressure 8 low barometric pressure c high discharge velocity high discharge rate Which of the following is most prone to pulsating discharge flow? A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump a develops a lower head 0 capacity is reduced c requires more power 2 all a , 6 and c Equivalent length of a pipe fitting is a dependent on Reynolds number.

Creeping flow around. Weber number dimensionless The pressure co-efficient is the ratio of pressure forces t0. The Prandtl mixing length is a. The termine] velocity of a small sphere settling in a viscous fluid varies as the a first power of its diameter.

In turbulent flow, a rough pipe has the same friction factor as a smooth pipe a in the zone of complete turbulence. The length of the tube necessary for the , boundary layer to reach the centre of the tube and for fully developed flow to be established is called the.

The fluid property which inatters for fall- ing rain drops to acquire spherical shape is its. Ina stabilised soap bubble, pressure inside it compared to external pressure is a more : b less fe same d unpredictable frem data. Ratio of pressure and inertia force gives The ratio of depth of flow to the diameter of the channel for maximum discharge in'a circular channel in open channel flow is a 0. Whatis the ratioof displacement thickness to nominal thickness for a linear distribu.

What is the pipe called which lif's water from a reservoir to a greater height than the initial level in the supply reservoir? Paper pulp is an example of The flow of a liquid through tapering pipe at a constant.

What type of motion the fluid element un- dergoes, when it changes from one position to another position such that the angle between the two sides change? Each term in Bernaulli's equation repre- sents the The Prandt! The energy loss in flow through ven- turimeter is less than that through flow nozzle, because in case of a flow nozzle, the c length is shorter 8 throat diameter is more c sudden expansion. In case of end to end connection of two or more pipes in series, the wun.

A venturimeter can not be used. Drag is the force component exerted on an immersed object a passing the centroid of the body at 60" to the direction of motion. The velocity for subsonic flow in a pipeline a increases in the downstream direction.

In a free vortex, the velocity-changes linearly with radial distance. The component of acceleration resulting due to unsteady nature of flow is called In isotropic turbulence, the For a reciprocating pump, the indicator diagram is the graph between the a discharge and overall efficiency, 6 volume swept by piston for one com- plete revolution and the pressure in the aylinder.

The capacity of an accumulator is the max- imum -. Hydraulic intensifier is used for increasing the a rate of velocity of liquid supply. Which of the following conditions must be satisfied for liff force to be developed? The body should be stream lined. The energy loss over a length of pipeline according 14 Darey-Welsbach gee for Pipe flow is Buoyant force.

Centre of pressure in an is The pressure and power requirement of a gas fan at constant speed and capacity varies, the gas density. The simple pitot tube measures the wi. Which is not a variable head meter? Velocity head on sudden enlargement in horizontal pipe. In an incompressible flow of fluid, the fluid a temperature remains constant.

The ratio of pressure forces to inertial for- ces is called Chemical Engineering by O. P Gupta 1. Description: o. Flag for inappropriate content. P Gupta 1 For Later. Related titles. Your email address will not be published. Home pdf pdf free download and pdf books for novel.

Chemical Engineering Save extra with 3 Offers. Chemical Engineering Objective Type by O. In this edition GATE questions upto , have been included. Important questions and Furnace Technology have been included in chapter on Fuels and Combustion and that of nuclear power engineering and refractory technology have been merged in chapter on Miscellaneous Questions.

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