A. 1 in 100
B. 1 in 250
C. 1 in 500
D. 1 in 1000
Related Mcqs:
- During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is_____________?
A. 4 chains
B. 6 chains
C. 120 m
D. 180m - Which of the following methods of con-touring is most suitable for a hilly terrain ?
A. direct method
B. square method
C. cross-sections method
D. tacheometric method - Which of the following methods of offsets involves less measurement on the ground?
A. method of perpendicular offsets
B. method of oblique offsets
C. method of ties
D. all involve equal measurement on the ground - The error due to eccentricity of inner and outer axes can be eliminated by________________?
A. reading both verniers and taking the mean of the two
B. taking both face observations and taking the mean of the two
C. double sighting
D. taking mean of several readings distributed over different portions of the graduated circle - In the double application of principle of reversion, the apparent error is_______________?
A. equal to true error
B. half the true error
C. two times the true error
D. four times the true error - If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________?
A. d
B. 1/d
C. d2
D. 1/d2 - An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as__________________?
A. contour line
B. horizontal equivalent
C. contour interval
D. contour gradient - If the length of a chain is found to be short on testing, it can be adjusted by______________?
A. straightening the links
B. removing one or more small circular rings
C. closing the joints of the rings if opened out
D. all of the above - The length of a chain is measured from_______________?
A. centre of one handle to centre of other handle
B. outside of one handle to outside of other handle
C. outside of one handle to inside of other handle
D. inside of one handle to inside of other handle - The maximum tolerance in a 20 m chain is_______________?
A. ±2 mm
B. ±3 mm
C. ±5 mm
D. ±8 mm
