Question58:-The principle of working of optical square is based upon
A:-Reflection
B:-Refraction
C:-Double reflection
D:-Double refraction
Correct Answer:- Option-C
Question59:-In which system, the bearing of a line is measured with magnetic north in clockwise direction?
A:-The Quadrantal Bearing System
B:-Reduced Bearing System
C:-Magnetic Bearing System
D:-The Whole Circle Bearing System
Correct Answer:- Option-D
Question60:-The top width of the embankment of road is called
A:-Roadway
B:-Carriageway
C:-Right of way
D:-None of these
Correct Answer:- Option-A
Question61:-The difference in levels of the outer and inner edges of a road along the curves is called
A:-Cant
B:-Gradient
C:-Side slopes
D:-Camber
Correct Answer:- Option-A
Question62:-The widening of road is not required when its radius will be
A:-Less than 350 m
B:-More than 400 m
C:-More than 300 m
D:-More than 460 m
Correct Answer:- Option-C
Question63:-The circular isolated depressions formed on a road surface
A:-Comrugation
B:-Deformation
C:-Pot holes
D:-Borrow pit
Correct Answer:- Option-C
Question64:-When a rising grade meets with a horizontal road, the type of curve adopted to connect them is called

A:-Transition curve
B:-Summit curve
C:-valley curve
D:-Simple curve

Correct Answer:- Option-B
Question65:-Width of ballast section for Broad Gauge is
&:-1.83 7

Correct Answer:- Option-C
Question66:-The tread of wheels is provided an outward slope of
A:-1in 10
B:-1in 20
C:-1in15
D:-1in 25
Correct Answer:- Option-B
Question67:-The side slope of embankments for a railway track is generally taken as