Select the incorrect statement.
A. Stop or red time of a signal is the sum of go and clearance intervals for the cross flow.
B. Go or green time of a signal is the sum of stop and clearance intervals for the cross flow.
C. Clearance time is generally 3 to 5 seconds.
D. The cycle length is normally 40 to 60 seconds for two phase signals.
Answer: Option B
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Highway facilities are designed for
A. annual average hourly volume
B. annual average daily traffic
C. thirtieth highest hourly volume
D. peak hourly volume of the year
The provision of traffic signals at intersections
A. reduces right angled and rear end collisions
B. increases right angled and rear end collisions
C. reduces right angled collisions but may increase rear end collisions
D. reduces rear end collisions but may increase right angled collisions
In CBR test the value of CBR is calculated at
A. 2.5 mm penetration only
B. 5.0 mm penetration only
C. 7.5 mm penetration only
D. both 2.5 mm and 5.0 mm penetrations
If aggregate impact value is 20 to 30 percent, then it is classified as
A. exceptionally strong
B. strong
C. satisfactory for road surfacing
D. unsuitable for road surfacing
A correct
Option A is right