Test: Surveying- 3 - SSC JE MCQ

An object on the top of a hill 100 m high is just visible above the horizon from a station at sea level. The distance between the station and the object is:

If every one of the three angles of a triangle have a probable error of ±1′′, then what will be the probable error in the sum of the measured internal angles of the triangle?

Direct ranging is possible only when the end stations are:

Which type of errors introduces due to clogging of chain rings with mud?

If whole circle bearing of any line is W₁, that of the preceding line is W₂ and “d” is the deflection angles to the right, then choose the correct expression:

The back sight reading on bench mark of R.L 500.00 m is 2.685 m. If foresight reading on the point is 1.345 m, the reduced level of the point is?

The following consecutive readings were taken with a dumpy level and a 3 m staff on a continuous sloping ground:

0.425, 1.035, 1.950, 2.360, 2.950, 0.750, 1.565, 2.455.

Which of the following readings are back sights?

A correction for error due to refraction is:

If cross sectional area of an embankment at 30 m intervals are 20, 40, 60, 50 and 30 m² respectively, then volume of the embankment on the basis of prismoidal rule is:

To orient a plane table at a point with two inaccessible points, the method generally adopted is:

The indirect method of contouring has all the following advantages over direct method except:

The values of whole circle bearing vary from ________. 

If the degree of curve is 1, then radius of the curve for 30 m chain is

A dumpy level is set up with its eyepiece vertically over a peg A. The height from the top of peg A to the centre of the eyepiece is 1.540 m and the reading on peg B is 0.705 m. The level is then set up over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is ________.

A level when set up 25 m from peg A and 50 m from peg B reads 2.847 m on staff held on A and 3.462 m on staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, what is the collimation error per 100.0 m?

A 30 m metric chain is found to be 20 cm too long throughout a measurement. If the distance measured is recorded as 300 m, what is the actual distance?

The difference between face left and face right observation of a theodolite is 3’. The error is: