Civil Engineering - Surveying - Discussion


Permanent adjustments of a level are

[A]. 2 in number
[B]. 3 in number
[C]. 4 in number
[D]. 6 in number

Answer: Option A


No answer description available for this question.

Abinet said: (Feb 6, 2016)  
Please describe it briefly?

Bhautik said: (Nov 7, 2016)  
Please explain it.

Amit Ami Sharma said: (Dec 14, 2016)  
The two adjustments are.

1) To make the axis of the bubble tube perpendicular to the vertical axis.

2) To make the line of collimation parallel to the axis of the bubble tube.

Utkarsh said: (Jul 27, 2017)  
What about the 3rd adjustment - the horizontal cross hair should lie in the plane perpendicular to the vertical axis?

Garry said: (Jan 6, 2018)  
Agree @Utkarsh.

Epcet said: (Jan 21, 2018)  
They are 4 in no.
Adjustment of altitude level is fourth.

Vasanth S D said: (Aug 3, 2018)  
Permanent adjustments --4.

Temporary adjustments--3--setting centering and levelling of parallax.

Ram said: (Nov 14, 2019)  
Only two adjustments are required in dumpy level to set up permanent adjustments.

Vino said: (Dec 2, 2019)  
It should be 6.

* Plate level test.
* Cross hair ring.
* Bubble tube adjustment.
* Collimation in azimuth.
* Spire test.
* Vertical arc.

Vishal Shrma said: (Jan 29, 2020)  
This is theodolite @Vino.

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