The Fluid mechanics is important subject for all Competitive exams, so let's learn about Concept of Mcq on Energy Equations and it's Applications - Venturimeter, orificemeter and pitot tube helps to modernize our society.So keeping these things in mind, Lets learn about the topic of Mcq on Energy Equations and it's Applications - Venturimeter, orificemeter and pitot tube.
 |
| Mcq on Energy Equations and it's Applications - Venturimeter, orificemeter and pitot tube |
Objective questions on Energy Equations:-
Mcq on Venturimeter, mcq on orificemeter and Mcq on pitot tube is as follows:-
a) Venturimeter
b) Pitot tube
c) Orificemeter
d) None of the above
Answer:- C
2. The working principle for the Orifice meter and Venturimeter are same.
A. True
B. False
Answer:- A
3. The Orifice meter diameter is one fourth (1/4th) times the pipe diameter.
A. True
B. False
Answer:- A
4. The fluid in motion is subjected to which of the following forces...
A. Body or volume forces
B. Surface forces
C. Linear forces
D. All of the above
Answer:- D
5. The accuracy of Venturimeter readings is more than the Orifice meter.
A. True
B. False
Answer:- A
6. Which of the following assumption is true about Bernoulli's equation..
A. Flow is steady and irrotational
B. Flow is incompressible and non viscous
C. Flow is continuous and homogeneous with uniform velocity.
D. All of the above
Answer:- D
7. If the flow is assumed to be ideal and viscous force is zero the equation of motion is known as Euler equation of motion.
A. True
B. False
Answer:- A
8. The accuracy of Pitot tube readings are more than the Orifice meter.
A. True
B. False
Answer:- A
9. The Bernoulli's is equation is based on....
A. Conservation of mass
B. Conservation of energy
C. Conservation of both mass and energy
D. None of the above
Answer:- B
10. Speed of the aeroplane is measured with the pitot tube.
A. True
B. False
Answer:- A
11. The Orifice meter having a smooth edge hole.
a) Trueb) False
Answer:- B
12. The principle of Venturimeter is based on the Bernoulli’s equation.
A. True
B. False
Answer:- A
13. The pipe fitting with water having velocity 120 m/min and gauge pressure is 3.5 bar over the pipe is located at 8 m above the datum line. The total head of water in ....m.
A. 44.88m
B. 45.88m
C. 43.88m
D. 42.88m
Answer:- C
14. The term dynamic pressure is used in all kinds of flow.
A. True
B. False
Answer:- A
15. For measuring the speed of aeroplane which device is used....
A. Hot wire anemometer
B. Venturimeter
C. Pitot tube
D. None of the above
Answer:- C
16. The difference between total pressure and static pressure is called Dynamic pressure.
A. True
B. False
Answer:- A
17. The pitot tube measuring the speed of air with the help of ....
a) Using temperatureb) Using velocity
c) Using mach number
d) Using the pressure difference
Answer:- D
18. When the local flow velocity (v) is zero then, the value of static pressure and the total pressure is the same.
A. True
B. False
Answer:- A
19. Theoretically the Bernoulli's equation is sum of pressure head, velocity head and datum head.
A. True
B. False
Answer:- A
20. The use of pitot tube, is to convert the kinetic energy into....
a) potential energyb) total energy
c) pressure energy
d) internal energy
Answer:- C
21. The Orifice metre only used for measuring rate of flow in an closed pipe structure.
A. True
B. False
Answer:- A
22. The pitot tube consists of a glass having bend in....
A. 70°
B. 80°
C. 90°
D. None of the above
Answer:- C
23. The Pitot tubes with the flat faces are less sensitive.
A. True
B. False
Answer:- A
24. Orificemeter consisting of a flat rectangular plate.
a) Trueb) False
Answer:- B
25. The pitot tube is used for measurement of...
A. Velocity of flow
B. Pressure of flow
C. Density of flow
D. None of the above
Answer:- A
26. The diverging angle of Venturimeter is less than converging angle.
A. True
B. False
Answer:- A
27. The Venturimeter having converging angle is....
A. 15°
B. 7°
C. 20°
D. 5°
Answer:- C
28. The losses in Venturimeter is less than orifice metre.
A. True
B. False
Answer:- A
29. The Venturimeter having diverging angle is....
A. 15°
B. 7°
C. 20°
D. 5°
Answer:- D
30. The velocity of liquid at throat is higher than that of inlet in venturimeter.
A. True
B. False
Answer:- A
31. The coefficient of discharge for Venturi metre is about...
A. 0.95
B. 0.98
C. 0.85
D. 0.63
Answer:- B
32. Venturimeter is expensive than orificemeter and pitot tube.
A. True
B. False
Answer:- A
33. In Venturimeter the pressure of liquid at throat is lower than that of Inlet.
A. True
B. False
Answer:- A
34. The coefficient of discharge for orificemeter is about....
A. 0.95
B. 0.98
C. 0.85
D. 0.63
Answer:- D
35. The coefficient of discharge is the ratio of theoretical discharge to the actual discharge through an orifice.
A. True
B. False
Answer:- B
36. In the pitot tube error generating due to the location is...
a) position errorsb) normal errors
c) negligible errors
d) positive errors
Answer:- A
37. The Absolute pressure is measuring with respect to the vacuum pressure.
A. True
B. False
Answer:- A
38. The coefficient of discharge is equal to...
A. Cd = cv/cc
B. Cd = cv - cc
C. Cd = cv + cc
D. Cd = cv × cc
Answer:- D
39. The coefficient of discharge is equal to product of coefficient of velocity and coefficient of contraction.
A. True
B. False
Answer:- A
40. The installing of orificemeter is easy compared to Venturimeter.
A. True
B. False
Answer:- A
41. When Venturimeter is inclined for a given flow it will shows the.........reading.
A. Same
B. Higher
C. Lower
D. None of the above
Answer:- A
42. The value of coefficient of velocity is more than value of coefficient of discharge.
A. True
B. False
Answer:- A
43. The average value of coefficient of discharge for orificemeter is 0.63
A. True
B. False
Answer:- A
44. The ratio of throat diameter and pipe diameter for Venturimeter is
A. 1:1
B. 1:2
C. 1:3
D. 2:1
Answer:- B
45. The cost of orificemeter is less than the Venturimeter.
A. True
B. False
Answer:- A
46. The most common device used for measure the speed of air is...
a) altimeterb) thermometer
c) pressure gauge
d) pitot tube
Answer:- D
47. The Static pressure is measuring of purely random motion of the molecules.
A. True
B. False
Answer:- A
48. The Venturimeter consists of which of the following parts.
A. Converging section
B. Throat section
C. Divergent section
D. All of the above
Answer:- D
49. In Venturimeter the flow takes place at absolute pressure.
A. True
B. False
Answer:- A
50. The coefficient of discharge for external mouthpiece depends upon the length of the mouth piece.
A. True
B. False
Answer:- A
51. Venturimeter measures the discharge of the flow.
A. True
B. False
Answer:- A
52. The average value of coefficient of discharge for Venturimeter is 0.98
A. True
B. False
Answer:- A
53. The coefficient of discharge for external mouthpiece is...
A. 0.375
B. 0.105
C. 0.855
D. 0.823
Answer:- C
54. The coefficient of discharge in case of internal mouthpiece is less than external mouthpiece.
A. True
B. False
Answer:- A
55. The Bernoulli's equation is applied to venturimeter and orificemeter and pitot tube.
A. True
B. False
Answer:- A
56. The pitot tube having coefficient of friction is point 98 and used to measure velocity of water. The stagnation pressure recorded 3 m and static pressure is 2 m what is the velocity?
A. 4 m/s
B. 5 m/s
C. 4.34 m/s
D. 5.34 m/s
Answer:- C
57. In case of venturimeter the pressure is maximum at midpoint of convergent section.
A. True
B. False
Answer:- A
58. The current meter is used to measure flow rate.
A. True
B. False
Answer:- A
59. Nozzle metre is used for measuring the discharge.
A. True
B. False
Answer:- A
60. The current metre is used to measure point velocity of an open channel.
A. True
B. False
Answer:- A
61. Wash basin or bath tub draining water throughout outlet is example of free vortex flow.
A. True
B. False
Answer:- A
62. The flow of liquid in centrifugal pump casing after left the impeller is example of...
A. Free vortex flow
B. Forced vortex flow
C. Both free and forced vortex flow
D. None of the above
Answer:- A
63. Forced vortex motion when a constant torque is applied to a fluid mass.
A. True
B. False
Answer:- A
64. In a free vortex flow....
A. V. R = maximum
B. V. R = minimum
C. V. R = constant
D. None of the above
Answer:- C
65. The Whirl pool in river is example of....
A. Free vortex flow
B. Forced vortex flow
C. Both free and forced vortex flow
D. None of the above
Answer:- A
66. The Rotating fluid is known as vortex.
A. True
B. False
Answer:- A
67. The motion of rotating mass of a fluid is known as for vortex motion of fluid.
A. True
B. False
Answer:- A
68. The flow static pressure is measured by the device of wall pressure tap.
A. True
B. False
Answer:- A
Here we concluding, If you have any queries about the topic of Mcq on Energy Equations and it's Applications - Venturimeter, orificemeter and pitot tube then feel free to comment below.
Related articles:
0 comments:
If you have any doubt, please let me know