71. The maximum number of vehicles beyond which the rotary may not function efficiently is
a) 500 vehicles per hour
b) 500 vehicles per day
c) 5000 vehicles per hour
d) 5000 vehicles per day
Ans: c
72. 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
Ans: a
73. When a number of roads are meeting at a point and only one of the roads is important, then the suitable shape of rotary is
a) circular
b) tangent
c) elliptical
d) turbine
Ans: b
74. Maximum number of vehicles can be parked with
a) parallel parking
b) 30° angle parking
c) 45° angle parking
d) 90° angle parking
Ans: d
75. When the width of kerb parking space and width of street are limited, generally preferred parking system is
a) parallel parking
b) 45° angle parking
c) 65° angle parking
d) 90° angle parking
Ans: a
76. As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is
a) 10 lux
b) 15 lux
c) 20 lux
d) 30 lux
Ans: d
77. 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
Ans: a
78. The direct interchange ramp involves
a) diverging to the right side and merging from left
b) diverging to the left side and merging from right
c) diverging to the right side and merging from right
d) diverging to the left side and merging from left
Ans: c
79. In soils having same values of plasticity index, if liquid limit is increased, then
a) compressibility and permeability decrease and dry strength increases
b) compressibility, permeability and dry strength decrease
c) compressibility, permeability and dry strength increase
d) compressibility and permeability increase and dry strength decreases
Ans: d
80. Which of the following tests measures the toughness of road aggregates ?
a) crushing strength test
b) abrasion test
c) impact test
d) shape test
Ans: c
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a) 500 vehicles per hour
b) 500 vehicles per day
c) 5000 vehicles per hour
d) 5000 vehicles per day
Ans: c
72. 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
Ans: a
73. When a number of roads are meeting at a point and only one of the roads is important, then the suitable shape of rotary is
a) circular
b) tangent
c) elliptical
d) turbine
Ans: b
74. Maximum number of vehicles can be parked with
a) parallel parking
b) 30° angle parking
c) 45° angle parking
d) 90° angle parking
Ans: d
75. When the width of kerb parking space and width of street are limited, generally preferred parking system is
a) parallel parking
b) 45° angle parking
c) 65° angle parking
d) 90° angle parking
Ans: a
76. As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is
a) 10 lux
b) 15 lux
c) 20 lux
d) 30 lux
Ans: d
77. 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
Ans: a
78. The direct interchange ramp involves
a) diverging to the right side and merging from left
b) diverging to the left side and merging from right
c) diverging to the right side and merging from right
d) diverging to the left side and merging from left
Ans: c
79. In soils having same values of plasticity index, if liquid limit is increased, then
a) compressibility and permeability decrease and dry strength increases
b) compressibility, permeability and dry strength decrease
c) compressibility, permeability and dry strength increase
d) compressibility and permeability increase and dry strength decreases
Ans: d
80. Which of the following tests measures the toughness of road aggregates ?
a) crushing strength test
b) abrasion test
c) impact test
d) shape test
Ans: c
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