Fluid Mechanics Problems
Quiz-summary
0 of 28 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
Information
INSTRUCTIONS
1.This question paper will be fully objective type for a total of 50 marks divided into four groups.
- Question number 1 to 10 will carry 1 mark each
- Question number 11 to 24(16 questions) will carry 2 marks each.
C.Question number 25 to 28(Common data questions) will carry 2 marks each.
2.Wrong answers carry 33% negative mark.
3.In Q.1 to Q.10 1/3 mark will be deducted for each wrong answer and in Q.11 to Q.28, 2/3rd mark will be deducted for each answer.
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 28 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score | |
Your score |
Categories
- Not categorized 0%
Thanks for Participating in the Quiz.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- Answered
- Review
- Question 1 of 28
1. Question
1 pointsThe hydrostatic force on one side of a submerged surface of unit area with centroid 3m below the free surface of the liquid is
CorrectThe Answer is Correct
IncorrectThe Answer is wrong
- Question 2 of 28
2. Question
1 pointsOne pipe system is said to be equivalent to another when the following quantifies are the same
CorrectThe Answer is correct
IncorrectThe Answer is wrong
- Question 3 of 28
3. Question
1 pointsThe pressure at the throat of Venturimeter is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 4 of 28
4. Question
1 pointsSurface tension of a fluid is zero
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 5 of 28
5. Question
1 pointsA fluid is said to be the irrotational when
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 6 of 28
6. Question
1 pointsThe normal stress is the same on all the planes at any point in a fluid only when the fluid is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 7 of 28
7. Question
1 pointsA 1:10 Reduced scale model of a water turbine runs at the same speed as the prototype turbine.The ratio of Prototype to model turbine discharges should be
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 8 of 28
8. Question
1 pointsAll the terms of Bernoulli’s equation:(ρ/r)+(V2/2g)+Z =Constant have the units of
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 9 of 28
9. Question
1 pointsThe power dissipated in a light loaded viscous fluid lubricated bearing at ‘N’ r.p.m. is 1 kilowatt.The power dissipated at 2N r.p.m. would be
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 10 of 28
10. Question
1 pointsThe thickness of laminar boundary layer on that plate is 2 cm at x = L/2.The thickness at x = L is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 11 of 28
11. Question
2 pointsA plane lamina in the form of a hollow circle of outer and inner diameters 2 m and 1 m respectively is immersed in a liquid of specific gravity 0.878 such that its extreme edges are at depths of 1.20 m and 2.2 m below the free surface.The hydrostatic force on one side of lamina,in KN is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 12 of 28
12. Question
2 pointsThe velocity field in a 3-D is given by
u=-x;v=2y and w=(3-z).The equation of the stream line that passes through a point (1,1,1) isCorrectIncorrect - Question 13 of 28
13. Question
2 pointsTwo pipes carrying water and Nitro-benzene are connected by a Mercury differential gauge as shown in figure.The difference in pressure (P1-P2),in kPa is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 14 of 28
14. Question
2 pointsThe change in moment of momentum of fluid due to flow along with curved path results in
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 15 of 28
15. Question
2 pointsA Bush Bearing of length 30 cm and diameter 18.01 cm supports a shaft of 18 cm diameter. The shaft rotates at 36.65 rad/sec.The viscosity of the lubricant is 1.96 poise.The Power dissipated in the bearing,in kW,is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 16 of 28
16. Question
2 pointsA metal ball weight 9 kN in air and 7.5 kN in a fluid of specific gravity 0.75,then specific gravity of ball material is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 17 of 28
17. Question
2 pointsIn a straight uniform pipe,the discharge is reduced from 1001 p.s. to zero in 10 seconds.The cross section area of the pipe is 200 Sq.cm.The nature and value of acceleration is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 18 of 28
18. Question
2 pointsPick out the dimensionless parameter
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 19 of 28
19. Question
2 pointsA Pitot-tube measures
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 20 of 28
20. Question
2 pointsAll the terms of Bernoulli’s equation:(ρ/r)+(V2/2g)+Z =Constant have the units of
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 21 of 28
21. Question
2 pointsIf (ϕ) = xy m2/sec,the resultant velocity at point (1,1) in m/sec is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 22 of 28
22. Question
2 pointsThe shear stress in a fluid is given according Fluid Power(Rheological) equation
Tow = 0.08(du/dy)Power(0.8).How is the Fluid Classified?CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 23 of 28
23. Question
2 pointsAssuming that the Kinematic viscosity of water is 1 Centistokes at room temperature,then the maximum permissible pipe diameter for maintaining laminar flow with an average velocity of 1m/s is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 24 of 28
24. Question
2 pointsCrude oil of specific gravity 0.82 to is pumped through a pipe of 150 mm diameter at the rate of 10 litres per second with a pressure gradient of 0.1 kPa/m.The type of flow is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 25 of 28
25. Question
2 pointsTwo pipes one of 100 mm diameter,0.2 km long and another of 150 mm diameter,0.4 Km long are connected in parallel.The friction factors are 0.0075 for the smaller pipe and 0.006 for the large pipe.The total discharge through the system is 50 Lit/sec.The head in smaller diameter pipe is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 26 of 28
26. Question
2 pointsTwo pipes one of 100 mm diameter,0.2 km long and another of 150 mm diameter,0.4 Km long are connected in parallel.The friction factors are 0.0075 for the smaller pipe and 0.006 for the large pipe.The total discharge through the system is 50 Lit/sec.The equivalent length of a 200 mm diameter by having friction factor of 0.005 is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 27 of 28
27. Question
2 pointsThe nozzle of a pelton wheel gives Jet of 90 mm diameter and velocity of 75 m/sec.Velocity coefficient of nozzle is 0.978.The PCD of wheel is 1.5 m and water deflection angle of bucket is 170 degrees the wave velocity is 0.46 times the jet velocity.The shaft torque developed by pelton wheel is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong
- Question 28 of 28
28. Question
2 pointsThe nozzle of a pelton wheel gives Jet of 90 mm diameter and velocity of 75 m/sec.Velocity coefficient of nozzle is 0.978.The PCD of wheel is 1.5 m and water deflection angle of bucket is 170 degrees the wave velocity is 0.46 times the jet velocity. The efficiency of the Turbine is
CorrectThe Answer is Correct
IncorrectThe Answer is Wrong