500 Best Highway Engineering MCQ
Q129). The universally recognized factor which affects the flexible pavement design, is the
a).Characteristics of the natural soil which underlies the pavement
b).Volume and character of traffic that will use the highway
c).Drainage condition of the area
d).All of the above
Correct Answer:
All of the above
Explanation:
Q130). The California bearing ratio (CBR) method of flexible pavement design gives an idea about
a).The quality of road making material
b).The traffic intensities
c).The characteristics of soil
d).All of these
Correct Answer:
The quality of road making material
Explanation:
Q131). In CBR test, the value of CBR is calculated at
a).2.5mm penetration only
b).5mm penetration only
c).Both 2.5 and 5mm penetration
d).All of these
Correct Answer:
Both 2.5 and 5mm penetration
Explanation:
Q132). Which of the following method is recommended by IRC for design of flexible pavement?
a).Group index method
b).CBR method
c).Westergaard method
d).None of these
Correct Answer:
CBR method
Explanation:
Q133). The group index method of designing flexible pavement is
a).An empirical method based on the physical properties of the sub-grade soil
b).An empirical method based on the strength characteristics of the sub-grade soil
c).A semi-empirical method
d).None of these
Correct Answer:
An empirical method based on the physical properties of the sub-grade soil
Explanation:
Q134). The value of group index of a soil varies from
a).0 to 10
b).0 to 20
c).20 to 30
d).30 to 40
Correct Answer:
0 to 20
Explanation:
Q135). Which of the following statement is collect?
a).The sub-base thickness is directly proportional to the group index of the soil
b).The higher the group index of the soil, the larger is the thickness of the sub base
c).If the group index value of the sub base is between 5 and 9, then the sub base is poor
d).All of the above
Correct Answer:
All of the above
Explanation:
Q136). The minimum thickness of the base of a flexible pavement is kept as
a).5 cm
b).10 cm
c).15 cm
d).20 cm
Correct Answer:
10 cm
Explanation: