December, 2009 BCE-036 : SOIL, ROADS AND AIRFIELDS Maximum Marks : 70
Time-: 2 hours
Note : Attempt five questions in all. Question number 1 is compulsory. Use of calculator is allowed. Graph papers may be supplied on request.
Fill in the blanks : 1.
7x2=14
(a) Grain size analysis of coarse-grained soil is carried out by and that of finegrained is carried out by the - Soils deposited along a stream due to transportation by running water are called soils while are the soils formed by deposition in quiet lakes.
roller is commonly used for rolling embankments whereas rollers are good in cohesionless soils.
(d)
is utilised for turning or yawning movement of aircraft.
BCE-036
1
P.T.O.
(e)
are the arterial roads of a state linking district Head quarters, whereas are the important roads within the district. Dense bitumen macadum has bitumen content from percent.
to
The movement of aircraft about the x-axis is called or movement. A shrinkage limit test on a clay gave a value of 21.5%. The initial moisture content as determined in the field was 45.3%. Take the specific gravity as 2.65. On evaporation the moisture content came down to 16.5%. Calculate the corresponding decrease in volume per unit volume and shrinkage ratio.
14
What do you understand by soil classification. Define various types of geological classifications. 2x6=12+2=14
Explain with neat sketch, the standard Proctor Test and show compaction curves for different 8+6=14
soils.
What do you understand by surface dressing ? Explain nine factors affecting its performance. 5+9=14 BCE-036
2
What are the seven operation steps in construction of modern concrete road before opening it to traffic ? Explain each in detail. 2x7=14 (a) Explain the functions of tricycle under 7+7=14 carriage. (b) Describe important factors required to be considered for site selection of a new airport. 8.
(a) Explain the Runway elements with a neat sketch.
(e) are the arterial roads of a state. linking district Head quarters, whereas. are the important roads within. the district. Dense bitumen macadum has. bitumen content from to. percent. The movement of aircraft about the x-axis. is called or movement. A shrinkage limit test on a clay gave a value of 14. 21.5%. The initial ...
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