How do farmers maintain a steady flow of water in Pakistan?

How do farmers maintain a steady flow of water in Pakistan?
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Potential function is applicable only for __________ flow. (A) Irrotational (B) Turbulent (C) Steady (D) None of these

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Bernoulli's equation for steady, frictionless, continuous flow states that the __________ at all sections is same. (A) Total pressure (B) Total energy (C) Velocity head (D) None of these

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For steady ideal fluid flow, the Bernoulli's equation states that the (A) Velocity is constant along a stream line (B) Energy is constant throughout the fluid (C) Energy is constant along a stream line, but may vary across stream lines (D) None of these

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Normal depth in open channel flow is the depth of flow in the channel (A) Corresponding to uniform flow(B) Measured normal to the channel bed(C) Corresponding to steady flow(D) None of these

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The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for __________ fluid. (A) Newtonian (B) Dilatant (C) Pseudo-plastic (D) Non-Newtonian

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Last Answer : (A) Newtonian

The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop of __________ fluid. (A) Dilatent (B) Pseudo-plastic (C) Bingham plastic (D) Newtonian

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In an ideal P.F.R. at steady state conditions (A) The composition of reactants remains constant along a flow path (B) The conversion of the reactant varies from point to point along a flow path (C) There is no lateral mixing of fluid (D) There may be diffusion along the flow path

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Pick out the wrong statement. (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity(B) For an ideal mixed reactor at steady state, the exit stream has the samecomposition as fluid within the reactor and the space time is equivalent toholding time for constant density system(C) Plug flow reactor (PFR) is always smaller than mixed reactor for allpositive reaction orders for a particular duty(D) Reaction rate does not decrease appreciably as the reaction proceeds incase of an autocatalytic reaction

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In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when (A) n = y = 1.4 (B) n = 0 (C) n = 1 (D) n = 1.66

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The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition. (A) Internal energy (B) Enthalpy (C) Gibbs free energy (D) Helmholtz free energy

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The adiabatic throttling process of a perfect gas is one of constant enthalpy (A) In which there is a temperature drop (B) Which is exemplified by a non-steady flow expansion (C) Which can be performed in a pipe with a constriction (D) In which there is an increase in temperature

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Last Answer : (C) Which can be performed in a pipe with a constriction

A flow in which the quantity of liquid flowing per second is not constant, is called (A) Streamline flow (B) Turbulent flow (C) Steady flow (D) Unsteady flow

Description : A flow in which the quantity of liquid flowing per second is not constant, is called (A) Streamline flow (B) Turbulent flow (C) Steady flow (D) Unsteady flow

Last Answer : Answer: Option D

A flow in which the viscosity of fluid is dominating over the inertia force is called (A) Steady flow (B) Unsteady flow (C) Laminar flow (D) Turbulent flow

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Last Answer : Answer: Option C

In the case of steady flow of a fluid, the acceleration of any fluid particle is (A) Constant (B) Variable (C) Zero (D) Zero under limiting conditions

Description : In the case of steady flow of a fluid, the acceleration of any fluid particle is (A) Constant (B) Variable (C) Zero (D) Zero under limiting conditions

Last Answer : Answer: Option C

The flow in which conditions do not change with time at any point, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Description : The flow in which conditions do not change with time at any point, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option C

A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called (A) Steady flow (B) Uniform flow (C) Streamline flow (D) Turbulent flow

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Last Answer : Answer: Option C

Flow occurring in a pipeline when a valve is being opened is (A) Steady (B) Unsteady (C) Laminar (D) Vortex

Description : Flow occurring in a pipeline when a valve is being opened is (A) Steady (B) Unsteady (C) Laminar (D) Vortex

Last Answer : Answer: Option B

General energy equation holds for (A) Steady flow (B) Turbulent flow (C) Laminar flow (D) Non-uniform flow

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Last Answer : Answer: Option D

When the flow parameters at any given instant remain same at every point, then flow is said to be (A) Quasi-static (B) Steady state (C) Laminar (D) Uniform

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Last Answer : Answer: Option D

A flow in which the quantity of liquid flowing per second is constant, is called __________ flow. (A) Steady (B) Streamline (C) Turbulent (D) Unsteady

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Last Answer : Answer: Option A

When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

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Last Answer : Answer: Option C

The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Description : The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as (A) One dimensional flow (B) Uniform flow (C) Steady flow (D) Turbulent flow

Last Answer : Answer: Option B