Civil Engineering :: Structural Design Specifications
-
The sum of the interior angles of a geometrical figure laid on the surface of the earth differs from that of the corresponding plane figure only to the extent of one second for every
-
The systematic errors which persist and have regular effects in the performance of a survey operation, are due to
-
It θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is
-
The best method of interpolation of contours, is by
-
Pick up the correct specification of Ramsden eyepiece from the following :
-
The conventional sign shown in below figure represents a
-
Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves
-
Measuring with a 30 m chain, 0.01 m too short, introduces
-
Setting out a curve by two theodolite method, involves
-
When the bubble of the level tube of a level, remains central
Whatsapp
Facebook
θ |
A.
it consists of two equal piano convex lenses
|
|
B.
the curved surfaces of plano-convex lenses face each other
|
|
C.
the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.
|
|
D.
the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam
|
|
E.
all the above.
|