BE (2nd Semester)
Examination, July- 2005
Basic Civil Engineering
1. (a)Enumerate various types of classification of rocks, giving examples or each.
(b)Classify various types of bricks, enumerating the characteristics of each type.
(c) Write a details note on air seasoning. What are its advantages and disadvantages?
2. Write short notes on any four of the following:
(i) Uses of white cement
(ii) Classification of mortars on various bases.
(iv)Ingredients of concrete.
(v)Advantages of reinforces concrete construction
(vi) Mild steel, Tor-steel.
(vii) Meaning of M-10, M-15 and M-20 grades.
3. Write notes on any two of the following:
(i)Methods of plane table surveying.
(ii)True meridian, Angle of Dip and Declination.
(iii)Principles of surveying and instruments used in chain surveying.
The following are bearings taken on a closed compass traverse:
Line F.B. B.B.
AB 80°10′ 259°0′
BC 120°20′ 301°50′
DE 230°10′ 49°30′
EA 310°20′ 130°15′
Compute the interior angle and correct them for observational errors. Assuming the
observed bearing of the line CD to be correct adjust the bearings of the remaining sides.
4. (a) Mention the temporary adjustment of a dumpy level.
(b) The following staff readings were taken successively with a level, the instrument being
shifted after third sixth and eight reading 1.235, 2.140, 0.785, 2.135, 2.845, 1.375, 0.625, 1.978, 2.312, 2.517 meters.
Enter the above readings in a page of a level book and find the R.L. of points if the first readings
was taken with a staff held on a bench mark of 415.375.
5. (a) Define Contour and contour interval, Bench mark, Line of collimation, change point back sight.
(b) Describe the collimation plane and rise and fall method of computation of levels. State merits and demerits of each.