101. Select the correct statement.
a) More the value of group index, less thickness of pavement will be required.
b) More the value of CBR, greater thickness of pavement will be required.
c) Minimum and maximum values of group index can be 0 and 20 respectively.
d) all of the above
Ans: c
102. If the group index value of subgrade is between 5 and 9, then the subgrade is treated as
a) good
b) fair
c) poor
d) very poor
Ans: c
103. Tyre pressure influences the
a) total depth of pavement
b) quality of surface course
c) both the above
d) none of the above
Ans: b
104. 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
Ans: b
105. The critical combination of stresses for corner region in cement concrete roads is
a) load stress + warping stress frictional stress
b) load stress + warping stress + frictional stress
c) load stress + warping stress
d) load stress + frictional stress
Ans: c
106. Tie bars in cement concrete pavements are at
a) expansion joints
b) contraction joints
c) warping joints
d) longitudinal joints
Ans: d
107. The maximum spacing of contraction joints in rigid pavements is
a) 2.5 m
b) 3.5 m
c) 4.5 m
d) 5.5m
Ans: c
108. The maximum thickness of expansion joint in rigid pavements is
a) 0
b) 25 mm
c) 50 mm
d) 100 mm
Ans: b
109. The function of an expansion joint in rigid pavements is to
a) relieve warping stresses
b) relieve shrinkage stresses
c) resist stresses due to expansion
d) allow free expansion
Ans: d
110. 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
Ans: b
a) More the value of group index, less thickness of pavement will be required.
b) More the value of CBR, greater thickness of pavement will be required.
c) Minimum and maximum values of group index can be 0 and 20 respectively.
d) all of the above
Ans: c
102. If the group index value of subgrade is between 5 and 9, then the subgrade is treated as
a) good
b) fair
c) poor
d) very poor
Ans: c
103. Tyre pressure influences the
a) total depth of pavement
b) quality of surface course
c) both the above
d) none of the above
Ans: b
104. 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
Ans: b
105. The critical combination of stresses for corner region in cement concrete roads is
a) load stress + warping stress frictional stress
b) load stress + warping stress + frictional stress
c) load stress + warping stress
d) load stress + frictional stress
Ans: c
106. Tie bars in cement concrete pavements are at
a) expansion joints
b) contraction joints
c) warping joints
d) longitudinal joints
Ans: d
107. The maximum spacing of contraction joints in rigid pavements is
a) 2.5 m
b) 3.5 m
c) 4.5 m
d) 5.5m
Ans: c
108. The maximum thickness of expansion joint in rigid pavements is
a) 0
b) 25 mm
c) 50 mm
d) 100 mm
Ans: b
109. The function of an expansion joint in rigid pavements is to
a) relieve warping stresses
b) relieve shrinkage stresses
c) resist stresses due to expansion
d) allow free expansion
Ans: d
110. 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
Ans: b
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