To locate, the position of an inaccessible point by the method of
Process of orientation means setting up the table
Accurate centering of a plane table, is done by
Spirit level is used for obtaining -------- of the plane table
A line AB of length 100 m is setting out right angle to the North, its latitude is
The error eliminated by reading both the Verniers and taking the mean is known as
The angle measured clock wise from the preceding line to the following is called
Closing error of closed traverse in theodolite survey equals
Departure of a line is obtained by multiplying its length by .... of its reduced bearing
Latitude of a line is obtained by multiplying its length by .... of its reduced bearing
Sign of latitude and departure in the 3 rd quadrant is
Latitude of a survey line is defined as its co-ordinate measured parallel to
If point sighted is above the horizontal axis,then the vertical axis is known as.
When the line of sight is perpendicular to the horizontal axis, the vertical circle must read
When the vertical axis is truly vertical,the plate bubble must occupy ...... the position
The adjustment required to made at every instrument station before making observation are called
The meeting point of vertical axis, horizontal axis and line of sight of a theodolite is called
The vertical circle of the theodolite is in the left of the observer, then the observation is called
The process of setting up a theodolite exactly over the ground station mark is known as
The axis about which the telescope along with the vertical circle of a theodolite,may be rotated in vertical plane is called.
The axis about which the theodolite may be rotated in horizontal plane is called
Graduation of vertical circle of a theodolite is
The theodolite whose telescope cannot be transited, it is called
Face left and face right, observation eliminate ..... error
The convenient direction assumed as a median for measuring bearing of survey line known as
The imaginary line joining the points having same dip on the surface of earth are known as
The bearing of a line in the direction of the progress survey, is called
If the bearing of two lines AB and AC are N 40°10' E and N 89° 45'E respectively.Its Included angle is :
If the sign of magnetic declination is negative, then the declinations is
Magnitude of max. angle in quadratal system is
The dip of a magnetic needle at equator is
If the fore bearing of a line is S 60° W, then its back bearing is
If true bearing of a line is 125° 30° and declination is 2° 30' W its magnetic bearing equals
The angle between the true North and magnetic North at a place is known as
Whole circle bearing of a line whose R.B is S20°W is
The reduced bearing of a line whose whole circle bearing is 80° is
The least count of a prismatic compass is
At magnetic pole, dip of a magnetic needle is
An imaginary line joining the points of equal declination either positive or negative, on the surface of the earth is called ----- Line
The smaller angle which a line makes with a true meridian is called
The zero of the graduation of prismatic compass is at ------ end of the graduated circle
....... Meridian of a place changes its position with time
Fore bearing and back bearing of a line whose end station are free from local attraction should differ by
The sum of the interior angles of a closed traverse is equal to right angles ------ ,where 'n' is the number of its sides
The length of a line measured with anerroneous chain .... where D and D' are true and erroneous distance and L and L' are true and erroneous length of the chain
..... Instrument is used for setting out right angles
The angle between two plain mirrors of an optical square is
Walking over the area and observing its main features and boundaries is known as:
The principle of chain surveying is to divide the area in to
Sag correction is given by ....... Where L= length of tape, W = weight of tape and P = the pull