The minimum value of flange way clearance recommended is
(A) 50 mm
(B) 60 mm
(C) 70 mm
(D) 80 mm
Adv.
In Indian Railways ruling gradient on plains is
(A) 1 in 100 to 1 in 150
(B) 1 in 150 to 1 in 200
(C) 1 in 200 to 1 in 300
(D) 1 in 300 to 1 in 400
Life of steel sleepers is
(A) 20 to 30 years
(B) 30 to 40 years
(C) 40 to 50 years
(D) 50 to 60 years
On Indian Railways, number of a crossing is defined as
(A) tangent of angle of crossing
(B) contangent of angle of crossing
(C) consine of angle of crossing
(D) sine of angle of crossing
Two important constituents in the composition of steel used for rail are
(A) carbon and sulphur
(B) carbon and manganese
(C) carbon and silicon
(D) manganese and phosphorous
Heel divergence is
(A) always greater than flangeway clearance
(B) sometimes greater than flangeway clearance
(C) equal to flangeway clearance
(D) always less than flangeway clearance
The sleeper that needs the least maintenance is
(A) concrete sleeper
(B) cast iron sleeper
(C) steel sleeper
(D) wooden sleeper
Which one of the following rails is called Vignole rail?
(A) bull headed
(B) flat footed
(C) double headed
(D) none of these
Tensile strength of steel used in rails should not be less than
(A) 500 MPa
(B) 700 MPa
(C) 800 MPa
(D) 850 MPa
In India, the permissible limit of rail wear is
(A) 2%
(B) 3%
(C) 5%
(D) 10%
Narrow gauge is adopted where
(A) expected revenue earning is low
(B) acquisition of land is difficult
(C) terrain is hilly
(D) number of river crossings are more
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