Highway Engineering
When the width of car parking space and width of street are limited, generally preferred parking system is

90° angle parking
65° angle parking
45° angle parking
Parallel parking

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Highway Engineering
In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with a level surface
an ascending gradient meets with another ascending gradient
a descending gradient meets with another descending gradient
an ascending gradient meets with a descending gradient

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

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

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