84. Areverse curve is one
(A) with a simple circular curve and a transition curve

(B) where the simple circular curve is set from the second tangent point in the reverse
direction

(C) having two simple circular curves with centres in opposite directions

(D) having half circular and half cubic parabola as a compound curve

85. The term shift used in transition curve is
(A) the movement of the centre of the circular due to introduction of transition curve
(B) the movement of the circular curve inwards to accommodate the transition curve
(C) the movement of the tangent of the circular curve because of the transition curve

(D) the shift in the point of intersection to accommodate the transition curve

86. Asmart station is
(A) a total station with software to calculate and display many quantities
(B) a total station with an integrated GPS module
(C) with display units on both sides

(D) a total station attached to computer

87. Remote sensing is
(A) collecting information without being in contact with the objects
(B) measuring angles
(C) measuring heights

(D) using a total station to collect data about the terrain

88. Inactive remote sensing
(A) an internal energy source is used for remote sensing
(B) an external energy source is used for remote sensing
(C) continuous emission of energy is used

(D) continuous receiving of radiation is done

89. Scattering is
(A) when the source emits energy in all directions
(B) when the emitted and received radiation are different
(C) diffusion of radiation due to atmosphere

(D) a defect in the scanning system

19/2023... நி 8