Highway Engineering Multiple Choice Questions on “Low Volume Roads”.
1. The design life for low volume roads is __________
a) 10 years
b) 15 years
c) 20 years
d) 30 years
Answer: a
Clarification: The low volume roads consist of low volume traffic and its life span is taken as 10 years.
2. The million standard axles in low volume roads is considered as __________
a) 1 million
b) 1.5 million
c) Less than 1 million
d) 2 million
Answer: c
Clarification: The volume on low volume roads is taken less than 1 million for design purpose, it may actually be more but for ease it is taken as 1 million.
3. The low volume roads are designed as __________
a) All weather roads
b) Fair weather roads
c) Flexible pavement
d) Rigid pavement
Answer: b
Clarification: Though the low volume road may have a lesser life span and capacity it should be accessible in all weathers.
4. The type of road used for ESAL value less than 10000 is?
a) Earth road
b) Gravel road
c) Flexible pavement
d) Rigid pavement
Answer: a
Clarification: The earth road is the most suitable for less volume of road, it is a value that is obtained based on the traffic load.
5. What is the maximum limit of sub grade thickness?
a) 150 mm
b) 200 mm
c) 300 mm
d) 400 mm
Answer: c
Clarification: The prepared sub grade is limited to a maximum of 300 mm, in any case it must not exceed 300 mm.
6. The base course is generally laid in earth road for a thickness of __________
a) 40 mm
b) 60 mm
c) 80 mm
d) 100 mm
Answer: d
Clarification: The base course is laid for a thickness of 100 mm, it may exceed in some cases, in some cases it may be 80 mm and even 40 mm in unimportant roads.
7. The camber depends on __________
a) Road
b) Heat
c) Wind
d) Rainfall
Answer: d
Clarification: The camber is provided to eliminate the rain that may be stored near the surfaces.
8. The plasticity index in soil used for low volume roads should be less than __________
a) 10
b) 9
c) 7
d) 6
Answer: d
Clarification: The plastic limit for the soil should not exceed 6 in any case for the soil that is used in the pavement.
9. The gravel content in the surface layer can be a maximum of __________
a) 60%
b) 70%
c) 80%
d) 90%
Answer: c
Clarification: The maximum gravel content in surface layer should be maximum of 80% and the minimum depends on the type of the pavement.
10. The minimum slope provided in a surface of cement concrete pavement is?
a) 1%
b) 1.5%
c) 2%
d) 2.5%
Answer: d
Clarification: The minimum slope provided is 2%, the maximum may be 2.5%. for a surface of the cement concrete pavement.