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Geodimeter is based on
Subtense bar is an instrument used for............................
In prismatic compass graduations are
The direction of true meridian at a station is..............................
Calculate the distance between instrument and staff if the staff readings observed were 1.11 m,1. 86 m and 2.61 m. The value of (f/i) is 100 and (f+d) is 0?
The magnetic bearing of sun at noon is 356° 45' at a place. What will be the magnetic declination at the place at the time of observation?
Local attraction in compass surveying may exist due to ..............
Which of the following methods of contouring is best suitable for hilly areas?
Which of the following is an obstacle to chaining but not ranging?
The effect of curvature of the earth surface is taken into account only if, the extend of survey is more than:
The imaginary line joining the points of zero declination on the surface of the earth is:
If the angular measurements of a traverse are more precise balancing of traverse is done by:
The whole circle bearing of a survey line is 130°, its reduced bearing is:
The horizontal angle between the meridian and the survey line, measured in clockwise direction is called:
Finding the location of the station occupied by the table on the paper, by means of sighting to two well defined points whose locations have previously been plotted on the paper, is known as:
Which one of the following is not a working operation of a plane table?
If the fore bearing and back bearing of a line do not differ by 180°,then either one or both the ends of line, are affected by:
Geodetic survey is applied if the area to be surveyed is more than:
The angle between two mirrors of an optical square is equal to:
The most important line in a survey is
The field book in chain surveying is about ................. and opens length
The inclination of the needle with horizontal is ................. of the needle
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
The length of an engineer's chain is:
Site explorations hand augers are used for depth upto:
If a wooden area obstruct the chain line then it is crossed by the:
Contour lines cross ridge lines or valley lines are at:
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:
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:
The line joining the intersection of cross hair to the optical centre of object glass is:
The difference between for bearing and back bearing of a survey line should be