Civil Engineering - Surveying - Discussion


The representation of general topography of a very flat terrain is possible only

[A]. by drawing contours at large interval
[B]. by drawing contours at small interval
[C]. by giving spot levels at large interval
[D]. by giving spot levels to salient features at close interval.

Answer: Option D


No answer description available for this question.

Sumit said: (Nov 15, 2016)  
Can anyone explain that why option (A) is not correct?

Sruthi said: (Dec 21, 2016)  
I too have the same doubt @Sumit.

Please explain us.

Rahul said: (Jul 13, 2017)  
I think option A is correct.

Anyone explain why option A, is wrong?

Nanadoo said: (Jul 31, 2017)  
In flat terrain the elevation difference is slight. So when we draw contours of this region, the salient features of the ground could not be represented.

Saurav Dagur said: (Aug 27, 2017)  
Option B is correct.

Divya said: (Dec 13, 2017)  
Large contour interval is for undulated ground.

For levelled or flat terrain small (close) contour interval is used.

Garry said: (Jan 7, 2018)  
Agri @Saurav.

Option B is correct because in flat terrain in the contour interval will be very less for very large horizontal distances that can be possible to depict the general topographical features.

Rajesh Ray said: (Jan 28, 2018)  
I think option a is correct because in a flat ground change of slope is less. So large interval is used.

Shubham said: (Sep 8, 2018)  
Correct @Rajesh ray.

Srikrushna said: (Apr 4, 2019)  
Option D is the correct answer.

Because it's given salient features (most important things).

Sandy said: (Nov 4, 2019)  
Option B is absolutely correct.

Mahanand Patel said: (Apr 15, 2020)  
Option B, For a very flat terrain, the difference of elevation is not large hence contours can be drawn at smaller interval for better detailing.

Manzoor Pashteen said: (Jul 24, 2020)  
A should be the correct answer because in hilly areas, the contour lines are close together while they are wider apart on flat slopes. The closer the contour lines, the steeper the slope. The wider the contour lines, the flatter the slopes.

Anand Mani Upadhyay said: (Oct 17, 2020)  
Contour interval means a vertical difference between two consecutive contour lines.

But here, the horizontal distance between 2 contour lines.

Now, here flat terrain means Horizontal Distance between two contour will very high but vertical distance will be very low. Then it will be called as flat terrain.

Ashwin said: (Oct 18, 2020)  
D is correct because very flat terrains have minimal elevation over large area, hence spacing between contour lines are large, therefore giving spot will at close interval give good representation.

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