Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 2 (Q.No. 10)
10.
A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to
Discussion:
35 comments Page 2 of 4.
Aung san suu kyi said:
8 years ago
The systematic error means?
Perwez Quraishi said:
7 years ago
Slope correction must be always negative. So, option C will be correct.
Roni said:
7 years ago
Slope correction is always subtracted from slope distance. So correct answer is C.
Yaduraj k r said:
9 years ago
That is 1.8^2/(2*15) = 0.108~0.11.
Santosh said:
7 years ago
Slope correction is always nagetive. So error due to slope is positive.
Paru said:
6 years ago
By Pythagoras Theorem, the ground distance is 15.10 and slope distance is 15m.
Since Error = Measured value - True Value, and here Measured value is lesser that is 15m, we get the error as -ve.
Hence correction +ve. Therefore, I agree with Option (A).
Since Error = Measured value - True Value, and here Measured value is lesser that is 15m, we get the error as -ve.
Hence correction +ve. Therefore, I agree with Option (A).
Shubham P said:
5 years ago
Now we know that given sloping distance is 15meter and difference in elevation is 1.8 meter.
That means we know the slope i.e. H:V = 15 : 1.8.
but slope gives us value of horizontal distance per unit error. We want error per unit horizontal distance here means 1.8 :15.
That gives us 0.12 which is cumulative of course due to slope. Hence it will be +0.12 cumulative or corrected for +0.11 cumulative.
That means we know the slope i.e. H:V = 15 : 1.8.
but slope gives us value of horizontal distance per unit error. We want error per unit horizontal distance here means 1.8 :15.
That gives us 0.12 which is cumulative of course due to slope. Hence it will be +0.12 cumulative or corrected for +0.11 cumulative.
Sandeep Gautam said:
1 year ago
Now we know that the given sloping distance is 15 meters and the elevation difference is 1.8 meters.
That means we know the slope i.e. H: V = 15 : 1.8.
But slope gives us the value of horizontal distance per unit error. We want an error per unit horizontal distance here means 1.8 : 15.
That gives us 0.12 which is cumulative of course due to slope. Hence it will be +0.12 cumulative or corrected for +0.11 cumulative.
That means we know the slope i.e. H: V = 15 : 1.8.
But slope gives us the value of horizontal distance per unit error. We want an error per unit horizontal distance here means 1.8 : 15.
That gives us 0.12 which is cumulative of course due to slope. Hence it will be +0.12 cumulative or corrected for +0.11 cumulative.
Jwala said:
9 years ago
Correction always negative but an error is positive.
Chandu banna said:
1 decade ago
h2/21 = 1.8^2/(2*15) = 1.08~.11.
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