If the length of a transition curve to be introduced between a straight and a circular curve of radiusm ism, the maximum deflection angle to locate its junction point, is
In a perfect prismatic compass
The magnetic bearing of a line isand the magnetic declination isW. The true bearing is
Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to
To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with AB. A ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is
The distances AC and BC are measured from two fixed points A and B whose distance AB is known. The point C is plotted by intersection. This method is generally adopted in
The theodolites used for making tacheometric observations by optical wedge system, are
The correction to be applied to eachmetre chain length along θ° slope, is
The 'fix' of a plane table from three known points, is good, if
The additional lines which are measured to show the correctness of the chain surveying are called:
The length of a traverse leg may be obtained by multiplying the latitude and
Pick up the correct statement from the following :
The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as
The sag ofm tape weighing 4 kg under 5 kg tension is roughly
In a constant level tube, size of the bubble remains constant because upper wall is
Which one of the following statements is correct ?
The construction of optical square is based, on the principle of optical
To set out a parallel from a given inccessible point to a given line AB, the following observations and made
Distance AB and angle PAM = a and angle PBA = b are measured where Mis a point on the line BA produced. The perpendicular to the desired parallel line from A and B are :




An internal focussing type surveying telescope, may be focussed by the movement of
Which of the following introduces an error of about 1 inifm chain is used
Pick up the correct statement from the following
Which of the following introduces an error of about 1 inifm chain is used
If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction



.Hydrographic surveys deal with the mapping of
An ideal vertical curve to join two gradients, is
An ideal vertical curve to join two gradients, is
Pick up the correct statement from the following :
The intercept of a staff
In chain surveying field work is limited to
The sensitiveness of a level tube decreases if
The radius of curvature of the arc of the bubble tube is generally kept
In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
The most reliable method of plotting a theodolite traverse, is
For a closed traverse the omitted measurements may be calculated
Two concave lenses ofcm focal length are cemented on either side of a convex lens ofcm focal length. The focal length of the combination is
For true difference in elevations between two points A and B, the level must be set up
If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to
The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to
Diopter is the power of a lens having a focal length of
One of the Lehmann's rules of plane tabling, is
Accuracy of 'fix' by two point problem, is
The slope correction for a length ofm along a gradient of 1 inis
Diopter is the power of a lens having a focal length of
ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is
The real image of an object formed by the objective, must lie
Pick up the correct statement from the following:
Offsets are measured with an accuracy of 1 inIf the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.cm on a scale of 1 cm =m, the maximum length of offset should be limited to
An imaginary line joining the points of equal elevation on the surface of the earth, represents
A bearing of a line is also known as
Pick up the correct statement from the following: