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The inclination of the needle with horizontal is ................. of the needle
Two point and three point problems are typical cases of:
Fore bearing and back bearing of a line exactly differ by:
A fixed point of known elevation is:
Prism square is used for:
Compass surveying is suitable where ................. is the main consideration
In the rise and fall method of reduction of level, there is no check on:
The length of an engineer's chain is:
Site explorations hand augers are used for depth upto:
A reference surface above which elevation of a point are determined is called ................. surface
If a wooden area obstruct the chain line then it is crossed by the:
Contour lines cross ridge lines or valley lines are at:
Size of a theodolite is specified by:
Maximum tolerance of 20m chain is:
A series of closely spaced contour lines represent:
The error which occurs when image formed by objective is not in the same plane with cross hairs of the telescope is:
For a well conditioned triangle, no angle should be less than:
Handles of chain are made of:
The point of contraflexure is the point where:
Least count in the vertical circle of theodolite:
Invar tape is used to:
Dip of a magnetic needle at the equator is:
Chromatic aberration is a defect of lens due to:
In prismatic compass, the magnetic needle used is:
The bench marks used in small levelling are:
The vertical axis need not be perpendicular to the line of collimation in:
Reduced level of a point is its elevation with reference to:
The instrument used for the measurement of area on a map:
Variation in declination due to magnetic storms, earthquakes and other solar influences are called:
Length of a revenue chain is:
A clinometer Is used for:
Closed contours of decreasing values towards their center represent:
The for bearing of a line is 185 degree, then it's back bearing is:
Example for derived reading in levelling work is:
The line joining the intersection of cross hair to the optical centre of object glass is:
Which one is, in the following that does not have the object of levelling?
The difference between for bearing and back bearing of a survey line should be
Whole circle bearing 176° equal to quadrantal bearing of:
Part of compass adjusting the prism according to eye height is:
One of the duties of leader in chain surveying is:
What is the angle of intersection of a contour and a ridge line?
Auxiliary theodolite station near an inaccessible main triangulation station:
During levelling if back sight is more than fore sight, then:
The error due to curvature in levelling operations is = ....................Where D' is the length of sight in kilometers
The line of collimation should be parallel to:
Chain surveying is most suitable for:
An Example for a level surface is:
Reciprocal ranging is adopted when the following is encountered:
The value of deflection angle is: (a)10 (c) 15
Invar tape is used