In setting up a plane table at any station

In a theodolite

If the whole circle bearing of a line is 180°, its reduced bearing is

Diaphragm of a surveying telescope is held inside

Correction per chain length oflinks along a slope having a rise of 1 unit in n horizontal units, is

The imaginary line passing through the intersection of cross hairs and the optical centre of the objective, is known as

Whole circle bearing of a line is preferred to a quadrantal bearing merely because

A dumpy level was set up at mid-point between pegs A and B,m apart and the staff readings were 1.and 1.When the level was set up at a pointm from A on BA produced, the staff readings obtained at A and B were 1.and 1.The correct staff reading from this set up at S should be

While surveying a plot of land by plane tabling, the field observations

In a precision traverse, included angles are measured by setting the vernier

The slope correction for aslope for a length ofm, is

A lens or combination of lenses in which the following defect is completely eliminated is called aplanatic

Under ordinary conditions, the precision of a theodolite traverse is affected by

The staff reading at a distance ofm from a level with the bubble at its centre is 1.m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.m. The angular value of the one division of the bubble, is

The line normal to the plumb line is known as

If vertical angles of inclined sights do not exceedand non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on

In horizontal angles, the error due to imperfect levelling of the plate bubble is

While setting a plane table at a station it was found that the error in centering wascm away from the ray of lengthm drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of the ray in plan from the true position will be

Staff readings on pegs x and y from X station are 1.m and 2.m, and from station Y on staff head at Y and X are 0.m and 1.m. If reduced level of X is 105.5 m, the reduced level of Y is

Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling

Pick up the incorrect statement from the following :

If i is the stadia distance, f is the focal length and d is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is

The angle of intersection of a curve is the angle between

If the length of a chain line along a slope of θ° is l, the required slope correction is

Pick up the correct statement from the following :

The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known

The reduced bearing of a line is NW. Its whole circle bearing is

The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called

Pick up the correct statement from the following :

In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm permetre tape duly corrected for temperature, slope and sag, the angular error of closure not to exceed (where n is the number of traverse legs)

The constant vertical distance between two adjacent contours, is called

A clinometer is used for

Pick up the correct statement from the following :

Stadia techeometry was discovered by James Watt in the year.

The bearing of lines OA and OB areand18', the value of the included angle BOA is

The back staff reading on a B.M. of R.L. 500.m is 2.m. If foresight reading on a point is 1.m, the reduced level of the point, is

The first reading from a level station is

Planimeter is used for measuring

The sag ofm tape weighing 4 kg under 5 kg tension is roughly

If the length of a transition curve to be introduced between a straight and a circular curve of radiusm ism, the maximum perpendicular offset for the transition curve, is

The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's

The bubble tube is nearly filled with

Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as

Bergchrund is a topograhical feature in

Pick up the correct statement from the following :

Straight, parallel and widely spaced contours represent

The reduced level of a floor is 99.m, the staff reading on the floor is 1.m. If the inverted staff reading against the roof is 1.m, the floor level below the slab, is

Diurnal variation of magnetic declination is

The properties of autogenous curve for automobiles are given by

It is more difficult to obtain good results while measuringhorizontal distance by stepping