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Railway Engineering
Railway Engineering Basic
Quiz 1
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Q.1
What is formed when 2 different gradients meet?
a) Summit
b) Sag
c) Summit or Sag
d) Another gradient
Q.2
Which of the following decides the length of Vertical curve?
a) Gradient of first curve
b) Gradient of second curve
c) Algebraic sum of gradients
d) Algebraic difference of gradients
Q.3
What should be the maximum rate of change of gradient in case of Summit curve?
a) 0.1%
b) 0.5%
c) 0.3%
d) 0.8%
Q.4
Which of the following is the correct formula for finding the length of vertical curve for achieving maximum permissible speed?
a) L = a/r x 30.5m
b) L = r/a x 30.5m
c) L = a/r x 100m
d) L = r/a x 100m
Q.5
Which of the following is not a major reason for the distortion of alignment of curve?
a) Unbalanced loading on inner edge
b) Horizontal forces on rail
c) Unbalanced forces on outer edge
d) Traffic from both sides
Q.6
According to cumulative frequency diagrams when should the realignment take place?
a) Cumulative percentage of versines is negligible
b) Cumulative percentage of versines is between 10 and 50
c) Cumulative percentage of versines is less than 80
d) Cumulative percentage of versines is 100
Q.7
What should be the maximum station to station variation of versine on curves where speed in excess of 100kmph are permitted?
a) 15mm
b) 20mm
c) 30mm
d) 35mm
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