Highway Engineering
The desirable length of overtaking zone as per IRC recommendation is equal to

overtaking sight distance
five times the overtaking sight distance
two times the overtaking sight distance
three times the overtaking sight distance

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Highway Engineering
The direct interchange ramp involves

diverging to the right side and merging from left
diverging to the right side and merging from right
diverging to the left side and merging from left
diverging to the left side and merging from right

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