Highway Engineering
When semaphore and warner are installed on the same post, then the stop indication is given when

semaphore arm lowered but warner arm horizontal
both semaphore and warner arms lowered
None of these
both arms are horizontal

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Highway Engineering
The effect of grade on safe overtaking sight distance is

to decrease it on both descending and ascending grades
to increase it on both descending and ascending grades
to increase it on descending grades and to decrease it on ascending grades
to decrease it on descending grades and to increase it on ascending grades

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Highway Engineering
The sequence of four stages of survey in a highway alignment is

map study, preliminary survey, reconnaissance and detailed survey
preliminary survey, map study, reconnaissance and detailed survey
map study, reconnaissance, preliminary survey and detailed survey
reconnaissance, map study, preliminary survey and detailed survey

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Highway Engineering
For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

increase in speed and with decrease in radius of curve
decrease in both speed and radius of curve
increase in both speed and radius of curve
decrease in speed and with increase in radius of curve

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