flow measurement venturimeter pilot tube orifice meter - Question Bank
1. Which of these devices is most sensitive to changes in flow rate for a given size?
2. The theoretical discharge through an orifice is calculated using the pressure difference and the principle of:
3. What is the main drawback of using a Pitot tube for flow measurement in a pipeline?
4. For measuring the flow of highly viscous fluids, which device might be preferred due to lower head loss?
5. The relationship between pressure and velocity in Bernoulli's principle is:
6. Which of the following is a less common type of flow measurement device based on differential pressure?
7. The stagnation point in a fluid flow is where the:
8. The accuracy of an orifice meter is generally affected by:
9. Which device measures flow rate by comparing the weight of the fluid displaced by a float?
10. In a Venturimeter, the angle of the diverging section is typically kept small to:
11. For accurate velocity measurement with a Pitot tube, the tube opening must be:
12. The ratio of the area at the vena contracta to the area of the orifice is called the:
13. Which of the following is a type of differential pressure flow meter?
14. The flow rate through an orifice meter is calculated using the pressure difference between the upstream and the:
15. A Pitot tube is unsuitable for measuring flow in:
16. The discharge coefficient of a Venturimeter is relatively constant over a wide range of Reynolds numbers because:
17. If the fluid velocity increases, the dynamic pressure will:
18. What is the primary advantage of an orifice meter over a Venturimeter?
19. The 'vena contracta' effect is most pronounced in which flow measurement device?
20. In a Rotameter, the float rises when:
21. Which device measures flow rate by balancing gravitational forces with drag forces?
22. The ratio of the actual discharge to the theoretical discharge through an orifice meter is known as the:
23. A Pitot tube measures the difference between stagnation pressure and:
24. The primary application of a Venturimeter is for measuring:
25. Which of the following is a type of orifice plate?
26. The pressure tapping for a Pitot tube should ideally be placed:
27. For measuring the velocity of a high-speed aircraft, which instrument is commonly used?
28. Which flow measurement device is most suitable for applications where minimal head loss is critical?
29. The vena contracta is the point where the fluid stream has:
30. Which factor significantly influences the discharge coefficient of an orifice meter?
31. Compared to a Venturimeter, an orifice meter typically results in:
32. The discharge coefficient for an orifice meter is generally:
33. In an orifice meter, the point of maximum velocity and minimum pressure occurs at the:
34. An orifice meter consists of a plate with an opening inserted in a pipeline, and it creates a:
35. The orifice meter is a device used for:
36. A Pitot tube is most accurate when the flow is:
37. What is a significant limitation of using a Pitot tube?
38. The velocity of a fluid at a point using a Pitot tube is given by the formula:
39. The stagnation pressure measured by a Pitot tube is equal to the sum of:
40. A Pitot tube measures the velocity of a fluid by determining the difference between:
41. A Pitot tube is primarily used to measure:
42. For a Venturimeter, the flow rate is proportional to the square root of the:
43. What is the purpose of the diverging section in a Venturimeter?
44. The discharge coefficient for a Venturimeter is typically:
45. What is the main advantage of using a Venturimeter for flow measurement?
46. According to Bernoulli's principle, as the velocity of a fluid increases, its:
47. In a Venturimeter, as the fluid flows from the wider section to the narrower throat, its velocity:
48. Which of the following is NOT a component of a standard Venturimeter?
49. What is the primary principle behind the operation of a Venturimeter?