The Slope Correction is

Answer: 2. 7.5 cm

Slope correction is 7.5 cm

Solution:

Given : Length = 60 m, gradient = 1 in 20 

Gradient = h/L

tanθ=1/20=h/60

⇒ h=3 m

We know the slope correction is given by 

Slope correction = h²/2L

Hence,

C_S = 3²/2×60=0.075 m=7.5 cm (negative)

Correction due to slope will always be negative because slope distance is greater than the corresponding horizontal distance.

☛ Related Questions:

• In fluids, steady flow occurs when
• Specify the 2 library functions to dynamically allocate memory 
• a pointer is
• how many instances of an abstract class can be created