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Test: Viscous Flow - 2 - Mechanical Engineering MCQ


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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Viscous Flow - 2

Test: Viscous Flow - 2 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Viscous Flow - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Viscous Flow - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Viscous Flow - 2 below.
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Test: Viscous Flow - 2 - Question 1

At what distance r from center of a pipe of radius R the average velocity is indicated as the local velocity in laminar flow ?

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Test: Viscous Flow - 2 - Question 2

In laminar flow through a circular pipe, the discharge varies

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So,

Q ∝ pressure gradient and Q ∝ R4

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Test: Viscous Flow - 2 - Question 3

For laminar flow through a long pipe, thepressure drop per unit length increases

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Test: Viscous Flow - 2 - Question 4

In a steady laminar flow of a given discharge of a liquid through a circular pipe of diameter d, the hydraulic gradient varies

Test: Viscous Flow - 2 - Question 5

The friction factor in the relation h = AfLV2/2gd for laminar flow in a circular pipe was found to be 0.01. This corresponds to a flow Reynolds number equal to

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∴  

Test: Viscous Flow - 2 - Question 6

The flow profile of a fluid depends upon

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Reynold number is the factor by which type of flow is decided i.e., laminar or turbulent.

Test: Viscous Flow - 2 - Question 7

For pipes, laminar flow occurs when reynolds number is

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For internal flow or pipe flow
(Re)Cr = 2000
i.e. Re < 2000 — Flow is laminar
Re > 2000 — Flow is turbulent

Test: Viscous Flow - 2 - Question 8

In a two-dimensional flow of a viscous fluid, couette flow is defined for

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Coutte flow is characterized as flow of very low value of Reynolds number between two parallel

Test: Viscous Flow - 2 - Question 9

For fully developed laminar flow through a pipe the volumetric flow is given by (symbols have the usual meaning)

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Test: Viscous Flow - 2 - Question 10

Capillary tube viscometers used for measurement of viscosity are based on

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