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Test: Continuity Equation in Two & Three Dimensions - Mechanical Engineering MCQ


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10 Questions MCQ Test Fluid Mechanics for Mechanical Engineering - Test: Continuity Equation in Two & Three Dimensions

Test: Continuity Equation in Two & Three Dimensions for Mechanical Engineering 2024 is part of Fluid Mechanics for Mechanical Engineering preparation. The Test: Continuity Equation in Two & Three Dimensions questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Continuity Equation in Two & Three Dimensions MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Continuity Equation in Two & Three Dimensions below.
Solutions of Test: Continuity Equation in Two & Three Dimensions questions in English are available as part of our Fluid Mechanics for Mechanical Engineering for Mechanical Engineering & Test: Continuity Equation in Two & Three Dimensions solutions in Hindi for Fluid Mechanics for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Continuity Equation in Two & Three Dimensions | 10 questions in 20 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Fluid Mechanics for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
Test: Continuity Equation in Two & Three Dimensions - Question 1
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The continuity equation is based on the principle of-

Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 1

Explanation: Continuity equation is based on the the principle of Law of conservation of mass.

Test: Continuity Equation in Two & Three Dimensions - Question 2
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 The continuity equation is only applicable to incompressible fluid.

Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 2

Explanation: The continuity equation is only applicable to incompressible as well as compressible fluid.

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Test: Continuity Equation in Two & Three Dimensions - Question 3
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For incompressible fluid flow, if area reduces then what is the effect on the velocity.

Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 3

Explanation: According to continuity equation,
Area × velocity = constant
Hence, as area decreases velocity increases.

Test: Continuity Equation in Two & Three Dimensions - Question 4
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For compressible fluid flow in a pipe, having decrease in specific gravity what will be the effect of decrease in diameter?
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 4

Explanation: According to continuity equation,
ρ*A*v = constant
Hence, as density and area decreases velocity is bound to increase.

Test: Continuity Equation in Two & Three Dimensions - Question 5
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What is the most common assumption while dealing with fluid flow problems using continuity equation?
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 5

Explanation: In majority of the fluid flow problems, flow is assumed to be steady.

Test: Continuity Equation in Two & Three Dimensions - Question 6
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The diameters of a pipe at the sections 1 and 2 are 8 cm and 13 cm respectively. Find the discharge through pipe if the velocity of water flowing through the pipe at section 1 is 6 m/s. Determine also the velocity at section 2.
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 6

Explanation: According to continuity equation,
Area × velocity = constant
Area1*Velocity1 = Area2*Velocity2
Velocity2=(Area1*Velocity1)/Area2
= (82 * 6) / 132=2.27 m/s.

Test: Continuity Equation in Two & Three Dimensions - Question 7
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The continuity equation can only be used for analysis of conserved quantity.
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 7

Explanation: Continuity equation is defined on a control volume and hence, is applicable only to Conserved quantities.

Test: Continuity Equation in Two & Three Dimensions - Question 8
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The diameter of a pipe at the section 1 is 9 cm. If the velocity of water flowing through the pipe at section 1 is 4.8 m/s and section 2 is 9 m/s, Determine the area at section 2. 
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 8

Explanation: According to continuity equation,
Area × velocity = constant
Area1*Velocity1 = Area2*Velocity2
(Area1*Velocity1)/Velocity2=Area2
Area 2= 33.93 m2.

Test: Continuity Equation in Two & Three Dimensions - Question 9
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 For a flow to be physically possible it must primarily satisfy which equation?
Test: Continuity Equation in Two & Three Dimensions - Question 10
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Continuity equation can also be derived for polar coordinate system
Detailed Solution for Test: Continuity Equation in Two & Three Dimensions - Question 10

Explanation: Continuity equation in polar coordinate is also used for analysis.

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