500 Best Surveying MCQ
Q153). A curve of varying radius is known as
a). simple curve
b). compound curve
c). reverse curve
d).transition curve
Correct Answer:
transition curve
Explanation:
Q154). A transition curve when inserted between the tangent and the circular curve
a). should meet the original straight tangentially
b). should meet the circular curve tangentially
c). the rate of increase of curvature along the transition curve should be same as that of increase of superelevation
d). all of the above
Correct Answer:
all of the above
Explanation:
Q155). The amount of superelevation on railway is equal to
a).Gv2/GR
b).Gv2/gR
c).GR/gv2
d).gR/Gv2
Correct Answer:
Gv2/gR
Explanation:
Q156). The expression v2/gR is called
a). radial acceleration
b). centrifugal force
c). centrifugal ratio
d). superelevation
Correct Answer:
centrifugal ratio
Explanation:
Q157). The curve used for ideal transition curve is a
a). cubic parabola
b). clothoid spiral
c). cubic spiral
d).lemniscate
Correct Answer:
lemniscate
Explanation:
Q158). The perpendicular offset from a tangent to the junction of transition curve and circular curve is equal to
a).L/6R
b).L/24R
c).L2/6R
d).L2/24R
Correct Answer:
L2/6R
Explanation:
Q159). The shift of a curve is equal to
a). L/6R
b).L/24R
c).L2/6R
d).L2/24R
Correct Answer:
L2/24R
Explanation:
Q160). The shift of a curve is ………… the perpendicular offset from a tangent to the junction of transition curve and circular curve
a). equal to
b). one half
c). one third
d). one fourth
Correct Answer:
one fourth
Explanation: