500 Best Surveying MCQ
Q145). When R is the radius of curve, in metres, D is the degree of curve, in degrees, and the length of the chord is 30 m, then the relation between R and D is
a).R = 1520/D
b).R = 1720/D
c).R = 4500/D
d).R = 5400/D
Correct Answer:
R = 1720/D
Explanation:
Q146). The angle between the back tangent and forward tangent of a curve is known as
a).deflection angle
b).central angle
c).angle of intersection
d).none of these
Correct Answer:
angle of intersection
Explanation:
Q147). The angle by which the forward tangent deflects from the back tangent of a curve is called
a).deflection angle
b).central angle
c).angle of intersection
d).none of these
Correct Answer:
deflection angle
Explanation:
Q148). Deflection angle is
a).less than 90°
b).more than 90° but less than 180°
c).equal to the difference between the angle of intersection and 180°
d).equal to the difference between the angle of intersection and 360°
Correct Answer:
equal to the difference between the angle of intersection and 180°
Explanation:
Q149). The length of peg interval for flat curves is
a).15 m
b).20 m
c).25 m
d).30 m
Correct Answer:
30 m
Explanation:
Q150). When the length of a chord is less than the peg interval, it is known as
a).small chord
b).short chord
c).Sab chord
d).normal chord
Correct Answer:
Sab chord
Explanation:
Q151). When the curve is to be set out over a rough ground, the method used is
a). Rankine’s method
b).Two theodolite method
c). Tacheometric method
d).Either B or C
Correct Answer:
Either B or C
Explanation:
Q152). Two theodolite method of setting out a curve involves
a).linear measurements only
b). angular measurements only
c). both linear and angular measurements
d). none of these
Correct Answer:
angular measurements only
Explanation: