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Highway Engineering - Interview Questions and Answers

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91. The most economical lighting layout which is suitable for narrow roads is
A. single side lighting
B. staggered system
C. central lighting system
D. none of the above
Explanation:
92. A traffic rotary is justified where
A. number of intersecting roads is between 4 and 7
B. space is limited and costly
C. when traffic volume is less than 500 vehicles per hour
D. when traffic volume is more than 5000 vehicles per hour
Explanation:
93. When the speed of traffic flow becomes zero,then
A. traffic density attains maximum value whereas traffic volume becomes zero
B. traffic density and traffic volume both attain maximum value
C. traffic density and traffic volume both become zero
D. traffic density becomes zero whereas traffic volume attains maximum value
Explanation:
94. The most efficient traffic signal system is
A. simultaneous system
B. alternate system
C. flexible progressive system
D. simple progressive system
Explanation:
95. On a right angled road intersection with two way traffic, the total number of conflict points is
A. 6
B. 11
C. 18
D. 24
Explanation:
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