A. The topographical maps of the Survey of India are useful in the mountainous region for tunnelling.
B. The height point on the ridge is fixed with the help of reciprocal ranging
C. The accuracy of 1 in 10, 000 is required for planimetric control
D. 1 second theodolite is used for angular measurement to achieve an angular error of 15 N where N is number of angles
E. All the above.
Correct Answer
All the above.
More questions
1. A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is
2. A cantilever carrying a uniformly distributed load W over its full length is propped at its free end such that it is at the level of the fixed end. The bending moment will be zero at its free end also at