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
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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
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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
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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
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The camber of shoulders in water bound macadam roads is
A. equal to the cross slope of pavement
B. less than the cross slope of pavement
C. greater than the cross slope of pavement
D. zero
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The particular places where pedestrians are to cross the pavement are properly marked by the pavement marking known as
A. stop lines
B. turn markings
C. crosswalk lines
D. lane lines
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The ductility value of bitumen for suitability in road construction should not be less than
A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm
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The entrance and exit curves of a rotary have
A. equal radii and equal widths of pavement
B. equal radii but pavement width is more at entrance than at exit curve
C. equal pavement widths but radius is more at entrance curve than at exit curve
D. different radii and different widths of pavement
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The fundamental factor in the selection of pavement type is
A. climatic condition
B. type and intensity of traffic
C. subgrade soil and drainage conditions
D. availability of funds for the construction project
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Tie bars in cement concrete pavements are at
A. expansion joints
B. contraction joints
C. warping joints
D. longitudinal joints
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As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is
A. 1 in 15
B. 1 in 12.5
C. 1 in 10
D. equal to camber
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If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be
A. Less than 2 h b and greater than co-efficient of lateral friction
B. Less than 2 h b and also less than co-efficient of lateral friction
C. Greater than 2 h b and less than co-efficient of lateral friction
D. Greater than 2 h b and also greater than coefficient of lateral friction
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The most efficient traffic signal system is
A. simultaneous system
B. alternate system
C. flexible progressive system
D. simple progressive system
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The terrain may be classified as rolling terrain if the cross slope of land is
A. upto 10%
B. between 10% and 25%
C. between 25% and 60%
D. more than 60%
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Rigidity factor for a tyre pressure greater than 7 kg/cm2 is
A. Equal to 1
B. Less than 1
C. Greater than 1
D. Zero
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Reaction time of a driver
A. increases with increase in speed
B. decreases with increase in speed
C. is same for all speeds
D. none of the above
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For rapid curing cutbacks, the oil used is
A. gasoline
B. kerosene oil
C. light diesel
D. heavy diesel
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“Dead Slow” is a
A. regulatory sign
B. warning sign
C. informatory sign
D. none of the above
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The aggregates required for one kilometer length of water bound macadam road per meter width and for 10 mm thickness is
A. 8 cubic meter
B. 10 cubic meter
C. 12 cubic meter
D. 15 cubic meter
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Length of a vehicle affects
A. width of traffic lanes
B. extra width of pavement and minimum turning radius
C. width of shoulders and parking facilities
D. clearance to be provided under structures such as overbridges, under-bridges etc.
Select an option to see the answer and solution.