The power of a lens
The orthographical projection of a traverse leg upon the reference meridian, is known as
Perpendicularity of an offset may be judged by eye, if the length of the offset is
For orientation of a plane table with three points A, B and C, Bessel's drill is
Removal of parallax, may be achieved by focussing
Transition curves are introduced at either end of a circular curve, to obtain
Ranging in chain survey means
ABCD is a rectangular plot of land. If the bearing of the side AB is 75°, the bearing of DC is
Magnetic declination at any place
In levelling operation
Imaginary line passing through points having equal magnetic declination is termed as
Flint glass
The operation of resection involves the following steps
The magnetic meridian at any point, is the direction indicated by a freely suspended
If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by
Pick up the correct statement from the following :
A well conditioned triangle has no angle less than
The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as
The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at
Chain surveying is well adopted for
Profile levelling is usually done for determining
Reduced bearing of a line is an angle between
Subtense tacheometry is generally preferred to if ground is
The method of reversal
The least count of a vernier scale is
In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to
The whole circle bearing of a line is 290°. Its reduced bearing is
The bearings of two traverse legs AB and BC are NE and NE respectively. The deflection angle is
The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is
The horizontal angle between true meridian and magnetic meridian, is known
Accurate measurement of deflection angles with a transit not properly adjusted may be made by
Grid lines are parallel to
Systematic errors are those errors
The zero of the graduated circle of a prismatic compass is located at
If the radius of a simple curve ism, the maximum length of the chord for calculating offsets, is taken
Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to
If Δ is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be
Contour lines of different elevations can unite to form one line, only in the case of
The angle of intersection of a contour and a ridge line, is
The bearing of C from A is NE and from B,metres east of A, is NW. The departure of C from A is
For locating a distant object visible from two transit stations, the method usually preferred to, is
Pick up the wrong statement from the following :
In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in
While measuring with a metallic tape ofm length pull should be applied
For high sensivity of the bubble tube
You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of
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