# Mathematical Example

## Find the Correction for Curvature & Refraction for a Given Distance

Find the Correction for Curvature Mathematic Problem Find the correction for curvature for a distance 900 m and 2.5 km. Solution 1. When the distance is 900 m 0r 0.9 km Correction for curvature (in meters) = 0.0785 D2 After Putting the value of D in the above equation [D is in Km] Correction for …

## Calculate the Horizontal Length After Slope Correction of Tape

Calculate the Horizontal Length After Slope Correction of Tape Mathematical Problem: The downhill end of the 30 m tape is held 70 cm too low. What is the horizontal length? Solution: Given, l = Length of the tape = 30 m.h = 70 cm = 0.70 m Correction for slope = = = 0.00817 m. …

## Find out the Discharge of a Siphon Spillway – Problem & Solution

Find out the Discharge of a Siphon Spillway Mathematical Problem: Find out the discharge of a siphon spillway from following data: Number of siphon units = 4 Area at throat in m2 = 3 Full reservoir level = 150 m R.L of centre of outlet = 128 Tailwater level on D/S side during rains = …

## Determine the Discharge of the Channel for which it is to be Designed

Determine the Discharge of the Channel for which it is to be Designed Mathematical Problem A channel is to be designed for irrigating 6000 hectares in Kharif crop and 5500 hectares in Rabi crop. The water requirement for Kharif crop is 70 cm and the water requirement for Rabi is 35 cm. The Kor period …

## How to Calculate Discharge of The Water If The Depth & Crop Period are Given

How to Calculate Discharge of The Water If The Depth & Crop Period are Given Mathematical Problem A Waterhouse has a culturable commanded area of 2200 hectares. The intensity of irrigation for crop A is 50% and for B is 35%, both the crops being Rabi crops. Crop A and B have a crop period …

## How to Find Crossing Angle in Railway – Mathematical Problem & Solution

Find the Crossing Angle – Problem & Solution Mathematical Problem: Find the crossing angle of 1 in crossing by using all the three methods(Right angle, centre line and isosceles triangle method): Solution: 1. By using right angle method We know, [N = = 8.5] So, Angle of Crossing = 2. By using centre line method …

## How To Calculate True Bearing From Magnetic Bearing – || Rules and Example||

Calculate True Bearing From Magnetic Bearing If the magnetic declination at a place at the time of observation is known, the true bearing of a line can be calculated from its magnetic bearing and vice-versa. Determination of True Bearing From Magnetic Bearing Rules The following rules are applied to determine the true bearing if the …