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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Mechanical Engineering MCQ

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Mechanical Engineering MCQ


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20 Questions MCQ Test - Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 below.
Solutions of Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 questions in English are available as part of our course for Mechanical Engineering & Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 solutions in Hindi 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: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 | 20 questions in 60 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study for Mechanical Engineering Exam | Download free PDF with solutions
Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 1
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In adiabatic flow with friction, the stagnation temperature alonga streamline  

Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 1

Ans. (c)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 2
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Circulation is defined as line integral of tangential component of velocity about a ...... 

Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 2

Ans. (a)

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Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 3
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The 2-D flow with, velocity  = (x + 2y + 2)i + (4 – y)j is: 

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Ans. (d) Continuity equation satisfied but ω2 ≠ 0

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 4
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Match List-I (Pipe flow) with List-II (Type of acceleration) and select the correct answer: 
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 4

Ans. (a)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 5
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Irrotational flow occurs when: 
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Ans. (c) If the fluid particles do not rotate about their mass centres while moving in the direction of motion, the flow is called as an irrotational flow.

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 6
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Assertion (A): Stream lines are drawn in the flow field such thatat a given instant of time there perpendicular to the direction offlow at every point in the flow field.  
Reason (R): Equation for a stream line in a two dimensional flowis given by Vx dy – Vy dx = 0.
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 6

Ans. (d) A streamline in a fluid flow is a line tangent to which at any point is in the direction of velocity at that point at that instant.

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 7
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Which one of the following is the correct statement?  
Streamline, path line and streak line are identical when the
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Ans (a)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 8
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The continuity equation for a steady flow states that  
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Ans. (c) It is a possible case of fluid flow therefore the stream function exists for steady flows.

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 9
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Irrotational flow occurs when: 
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 9

Ans. (c) If the fluid particles do not rotate about their mass centre and while moving in the direction of motion. The flow is called as an irrotational flow.

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 10
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Consider the following statements: 
For a two-dimensional potential flow
1. Laplace equation for stream function must be satisfied.
2. Laplace equation for velocity potential must be satisfied.
3. Streamlines and equipotential lines are mutually perpendicular.
4. Stream function and potential function are not interchangeable.
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 10

Ans. (c)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 11
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Which one of the following statements is correct?  
The pressure centre is:
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 11

Ans. (b)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 12
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The vertical component of the hydrostatic force on a submergedcurved surface is the 
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 12

Ans. (b)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 13
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Resultant pressure of the liquid in case of an immersed body actsthrough which one of the following? 
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 13

Ans. (b)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 14
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Consider the following statements about hydrostatic force on asubmerged surface: 
1. It remains the same even when the surface is turned.
2. It acts vertically even when the surface is turned.
Which of these is/are correct?
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 14

Ans. (a)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 15
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The vertical component of force on a curved surface submergedin a static liquid is equal to the  
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 15

Ans. (b) The correct choice is (b) since the vertical component of force on a curved surface submerged in a static liquid is the weight of the liquid above the curved surface.

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 16
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The depth of centre of pressure for a rectangular laminaimmersed vertically in water up to height ‘h’ is given by:  
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Ans. (c)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 17
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What acceleration would cause the free surface of a liquid contained in an open tank moving in a horizontal track to dip by45°? 
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Ans. (c)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 18
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The vertical component of the hydrostatic force on a submerged curved surface is the  
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Ans. (b)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 19
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Consider the following statements regarding a plane areasub merged in a liquid: 
1. The total force is the product of specific weight of the liquid,the area and the depth of its centroid.
2. The total force is the product of the area and the pressure atits centroid.
Of these statements:
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 19

Ans. (d)

Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 20
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A circular disc of radius 'r' is submerged vertically in a static fluidup to a depth 'h' from the free surface. If h > r, then the positionof centre of pressure will: 
Detailed Solution for Test: Hydrostatic Forces on Surfaces & Fluid Kinematics - 1 - Question 20

Ans. (a)

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