Collimation method is used in? Mark as favorite Copy Link check levelling profile levelling differential levelling both (a) and (b) Check Answer
Compensating errors that occur in chaining are proportional to? Mark as favorite Copy Link L root L 1/L 1/root L Check Answer
In levelling, the correction for combined curvature and refraction (in metres) is equal to? Mark as favorite Copy Link 0.0785 D² 0.00785 D² 0.0673 D² 0.0112 D² Check Answer
To the sum of the first and last ordinates, add twice the sum of the remaining odd ordinates and four times the sum of all the even ordinates. The total sum thus obtained is multiplied by one-third of the common distance between the ordinates and the result gives the required area. This rule of finding the area is called? Mark as favorite Copy Link mid-ordinate rule Simpson's rule trapezoidal rule average ordinate rule Check Answer
The length of a long chord is equal to? Mark as favorite Copy Link R sin ? R cos ? 2 R sin ?/2 2 R cos ?/2 Check Answer
In an optical square, the angle between the first incident ray and the last reflected ray is? Mark as favorite Copy Link 150? 60° 90? 120? Check Answer
A surface which is normal to the direction of gravity at all points, as indicated by a plumb line, is known as? Mark as favorite Copy Link level surface datum surface vertical surface horizontal surface Check Answer
When the whole circle bearing of two lines AB and AC are 115? and 41° respectively, the included angle BAC will be? Mark as favorite Copy Link 41° 74° 115? 156? Check Answer
If the fore bearing of a line is 36° 15′, its back bearing will be? Mark as favorite Copy Link 143° 45' 36° 15' 216° 15' 126° 15' Check Answer