Category: Surveying

A. is used at the time of standardising the tape
B. neutralizes the effect due to pull and sag
C. makes the correction due to sag equal to zero
D. makes the correction due to pull equal to zero

A. linear and angular measurements of the traverse are of equal accuracy
B. angular measurements are more accurate than linear measurements
C. linear measurements are more accurate than angular measurements
D. all of the above

A. compound curve
B. transition curve
C. reverse curve
D. vertical curve

1. contour interval
2. scale of plan
3. characteristics of ground
The correct answer is ?

A. only (1)
B. (1) and (2)
C. (2) and (3)
D. (1), (2) and (3)

A. error due to curvature only
B. error due to refraction only
C. error due to both curvature and re-fraction
D. none of the above

A. Tracing paper method
B. Bessels method
C. Lehman’s method
D. all of the above

A. A contour is not necessarily a closed curve
B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour
C. Two contours of different elevations do not cross each other except in case of an overhanging cliff
D. All of the above statements are correct

A. azimuth
B. declination
C. local attraction
D. magnetic bearing

A. contour line
B. horizontal equivalent
C. contour interval
D. contour gradient

A. hypsometry
B. barometric levelling
C. spirit levelling
D. trigonometrical levelling