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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Fluid Mechanics for Mechanical Engineering  >  Test: Dynamic of Fluid Flow - 1 - Mechanical Engineering MCQ

Test: Dynamic of Fluid Flow - 1 - Mechanical Engineering MCQ


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10 Questions MCQ Test Fluid Mechanics for Mechanical Engineering - Test: Dynamic of Fluid Flow - 1

Test: Dynamic of Fluid Flow - 1 for Mechanical Engineering 2024 is part of Fluid Mechanics for Mechanical Engineering preparation. The Test: Dynamic of Fluid Flow - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Dynamic of Fluid Flow - 1 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Dynamic of Fluid Flow - 1 below.
Solutions of Test: Dynamic of Fluid Flow - 1 questions in English are available as part of our Fluid Mechanics for Mechanical Engineering for Mechanical Engineering & Test: Dynamic of Fluid Flow - 1 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: Dynamic of Fluid Flow - 1 | 10 questions in 30 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: Dynamic of Fluid Flow - 1 - Question 1
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Which of the following pairs are correctly matched?
1. Piezometric head : Sum of datum head and pressure head
2. Dynamic head : Sum of datum head and velocity head
3. Stagnation head : Sum of piezometric head and velocity head
4. Total head : Sum of piezometric head and dynamic head

Test: Dynamic of Fluid Flow - 1 - Question 2
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 Under which of the following conditions will the equation  = constant  will be valid in the whole flow field?

1. Flow is rotational
2. Flow is irrotational
3. Flow is incompressible
4. Flow is steady
5. Flow is laminar

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Test: Dynamic of Fluid Flow - 1 - Question 3
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Match List-I (Phenomenon) with List-ll (Equation/concept involved) and select the correct answer using the codes given below the lists:

List-I
A. Force developed in a bend
B. Pitot-static tube
C. Flow through smaller passage produces higher velocity
D. Vortex flow

List-ll
1. Continuity equation
2. Energy equation
3. Momentum equation
4. Moment of momentum equation

Test: Dynamic of Fluid Flow - 1 - Question 4
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The Bernoulli’s equation is written with usual  notation as constant . In this equation, each of the terms represents
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Test: Dynamic of Fluid Flow - 1 - Question 5
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The difference between the total head line and the hydraulic grade line represents
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Test: Dynamic of Fluid Flow - 1 - Question 6
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 The dimension of kinetic energy correction factor α is 
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Kinetic energy correction factor is basically defined as the ratio of kinetic energy of the flow per second based on actual velocity across a section to the kinetic energy of the flow per second based on average velocity across the same section. 
Kinetic energy correction factor will be displayed by the symbol α and will be written mathematically as mentioned here. 
Kinetic energy correction factor, α = (K.E. per second based on actual velocity) / (K.E. per second based on average velocity)

Hence, the dimensions are  M0L0 T0

Test: Dynamic of Fluid Flow - 1 - Question 7
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The kinetic energy correction factor a is defined as α =

where ,

V - average velocity in the cross-section
Test: Dynamic of Fluid Flow - 1 - Question 8
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A 2-D conduit has the velocity distributions shown in figure below. What is kinetic energy correction factor? (Consider unit width of conduit)
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Discharge,

Average velocity,

Test: Dynamic of Fluid Flow - 1 - Question 9
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A pitot-static tube is used to measure the velocity of water in a pipe. The stagnation pressure head is 6 m and static pressure head is 5 m. The velocity of flow is [Take coefficient of velocity as 0.98]
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Test: Dynamic of Fluid Flow - 1 - Question 10
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A sub-marine moves horizontally in sea and has its axis 15 m below the surface of water. A pitot- tube properly placed just in front of the sub-marine and along its axis is connected to the two limbs of a U-tube manometer containing mercury. The difference of mercury level is found to be 170 mm. What is the speed of the sub-marine knowing that the specific gravity of mercury is 13.6 and that of sea-water is 1.026 with respect to fresh water?
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