two times the shift four times the shift three times the shift shift
Answer Discuss in Comment
parabolic spiral elliptical circular
spiral angle /3 spiral angle /4 spiral angle /2 spiral angle
0 and 0 100 and 0 100 and 100 0 and 100
do not require slope and tension corrections require slope correction require tension correction require slope and tension corrections
measurement of horizontal distances in plane areas measurement of horizontal distances in undulated areas levelling measurement of angles
deflection angle included angle direct angle none of the above
three centred compound curve four centred compound curve two centred compound curve one centred compound curve
180° - angle of deflection / 2 two times the angle of deflection angle of deflection 180° - angle of deflection
1.33 0.1 0.6 0.4
"Scientists dream about doing great things. Engineers do them."
