Civil Engineering - Surveying - Discussion

6. 

The radius of curvature of the arc of the bubble tube is generally kept

[A]. 10 m
[B]. 25 m
[C]. 50 m
[D]. 100 m

Answer: Option D

Explanation:

No answer description available for this question.

Ankit said: (Nov 12, 2013)  
The radius of curvature of the arc bubble is very sensitive when if you put it the center in experiment. It will give you correct image of line of sight. Bubble tube is generally to fix at 100m distance.

Maan said: (Apr 12, 2015)  
It is generally b/w 10 to 300 m.

Priyanka said: (Jul 6, 2015)  
Why it is at 100m?

Kedir Wedajo said: (Nov 12, 2015)  
The answer is 100 m from surveying technology department in Ethiopia.

Sugat said: (Nov 20, 2015)  
What is mean by curvature of arc bubble?

A.Jyothsna said: (Jan 27, 2016)  
Why the radius of curvature is sensitive?

A.Jyothsna said: (Jan 27, 2016)  
Why radius of curvature of arc bobble is so sensitive?

Ashwin said: (Feb 10, 2016)  
Why it is at 100 m?

Makvana Disha said: (Mar 9, 2016)  
What is the mean by the radius of curvature of the arc of the bubble tube ?

Robins Kumar Roshan said: (Jun 2, 2016)  
What is bubble tube?

And, I don't think that the radius would lie between 10-300m.

Jayant Wala said: (Jun 15, 2016)  
Can anyone explain me clearly, please?

Krishna said: (Jun 15, 2016)  
Why is 100m?

Bandavath Sriramulu said: (Jul 20, 2016)  
Sir, Can anyone explain it clearly?

Snehal said: (Aug 18, 2016)  
In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

Thirumani said: (Aug 24, 2016)  
How it was 100 m?

Merajul said: (Sep 28, 2016)  
Why 100m?

Bhuvnendra Upadhyay said: (Oct 11, 2016)  
Why is 100m?

Badri said: (Nov 30, 2016)  
What is the radius of curvature of an arc?

Neeraj Khatik said: (Dec 9, 2016)  
What is the limit of the radius of curvature in bubble tube?

Suman Ghosh said: (Jan 14, 2017)  
Why it would be 100 m?

Kamlesh Prasad said: (Jan 19, 2017)  
Please explain it in details.

Manick said: (Mar 16, 2017)  
In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

Nitin Singh said: (Apr 17, 2017)  
Radius of bubble tube is 200 mtr. Yes or no?

Please explain me with the clear description.

Chandan said: (May 22, 2017)  
I think it's 100mtrs, because of the min. sea level is 100m settled at Karachi.

Prasad said: (Sep 6, 2017)  
How it is 100m?

Raj said: (Dec 5, 2017)  
Anyone, please explain this clearly.

Sachin Daksh said: (Jan 3, 2018)  
Sir, please explain this.

Bindu said: (Jan 18, 2018)  
Please can anyone explain this?

Pavan said: (Apr 11, 2018)  
How it is 100m? Explain in detail.

Rabindra said: (May 1, 2018)  
In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

Lekkala Vyshnavi said: (Jun 9, 2018)  
Plese explain it clearly.

Nitin Mate said: (Aug 23, 2018)  
Yes, explain it clearly.

Prasenjit Bhowmick said: (Nov 18, 2018)  
Bubble tube sensitive is proportional with length The radius of curvature of the arc and dia of pipe.

Sivaji said: (Jul 8, 2019)  
Greater is the radius of the Curvature lesser is the sensitivity.

Sensitivity = Length of one division on tube / Radius of curvature.
= L/R.

If R is more, sensitivity is less.

Kiran Kp said: (Aug 24, 2019)  
The bubble tube is small, Then how m came?

Md.Abu Nayem said: (Oct 9, 2019)  
Right, explain it clearly.

Aravind said: (Nov 11, 2019)  
The axis of the bubble tube is not an axis passing through the bubble tube-like telescope. It's an arc that passes through the midpoint of the bubble tube length. For a deflection of theta degree at the center of the earth what deflection it makes on the surface of the earth is called its sensitivity. Similarly, the arc of the bubble tube also has a center at the center of the earth and so the radius of curvature is generally taken as 100m.

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