Surveying Set 12

Q1 | When the anallatic lens is provided in the telescope of a tacheometer, the additive constant is zero.

Q2 | In order to determine the natural features such as valleys, rivers, lakes etc., the surveying preferred is

Q3 | An angle made by a survey line with the prolongation of the proceeding line, is known as

Q4 | The bearing observed with a prismatic compass is

Q5 | Due to the magnetic influence of the earth, the magnetic needle of the prismatic compass will be inclined downward towards the pole. This inclination of the needle with the horizontal is known as

Q6 | The real image of an object formed by the objective must lie at the centre of telescope.

Q7 | The direction of a true meridian at a station is invariable.

Q8 | In a whole circle bearing system N 25? 15' W corresponds to

Q9 | An open cross-staff is commonly used for setting out

Q10 | The adjustable cross-staff is used for setting out an offset

Q11 | To the sum of the first and last ordinates, add twice the sum of the intermediate ordinates. The total sum thus obtained is multiplied by the common distance between the ordinates. One-half of this product gives the required area. This rule of finding the area is called

Q12 | The reduced level of the plane of collimation is

Q13 | The deflection angle may have any value between

Q14 | The strength of 'fix' of a plane table from three known points is good if the middle station is

Q15 | The angle by which the forward tangent deflects from the back tangent of a curve is called

Q16 | If the fore bearing of a line is N 26? 35' W, its back bearing will be

Q17 | A staff reading taken on a bench mark or a point of known elevation is called

Q18 | If the definition of a telescope is poor, it will produce a clear and district image.

Q19 | When the magnetic declination is negative, the magnetic meridian is towards the west of true meridian.

Q20 | The theodolite is an instrument used for measuring very accurately

Q21 | The spacing of cross-sections in a hilly country is usually

Q22 | In a retrograde vernier, the smallest division of a vernier is

Q23 | The diurnal variation of the magnetic needle is more in

Q24 | An optical square is used for the same purpose as the cross-staff, but it is more accurate.

Q25 | A reverse curve consists of