Questions
61
Intersection method of detailed plotting is most suitable for
Answer: hilly areas
62
The type of surveying which requires least office work is
Answer: plane table surveying
64
Contour interval is
Answer: the vertical distance between two con-secutive contours
66
Select the correct statement.
Answer: Contour interval on any map is kept constant.
67
Which of the following methods of con-touring is most suitable for a hilly terrain ?
Answer: tacheometric method
68
In the cross-section method of indirect contouring, the spacing of cross-sections depends upon
i) contour interval
ii) scale of plan
iii) characteristics of ground
The correct answer isAnswer: (i), (ii) and (iii)
69
In direct method of contouring, the process of locating or identifying points lying on a contour is called
Answer: vertical control
72
Select the correct statement.
Answer: Two contours of different elevations do not cross each other except in case of an overhanging cliff.
74
An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as
Answer: contour gradient
76
The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be
Answer: equidistant from A and B
77
Dumpy level is most suitable when
Answer: many readings are to be taken from a single setting of the instrument
78
Which of the following statements is in-correct ?
Answer: All of the above statements are incorrect.
80
Overturning of vehicles on a curve can be avoided by using
Answer: transition curve
