# CSVTU Exam Papers – BE I Year – Basic Civil Engineering – July-2005

BE (2nd Semester)

Examination, July- 2005

Basic Civil Engineering

UNIT- I

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?

UNIT-II

2.     Write short notes on any four of the following:

(i) Uses of white cement

(ii) Classification of mortars on various bases.

(iii)Water-cement ratio.

(iv)Ingredients of concrete.

(vi) Mild steel, Tor-steel.

(vii) Meaning of M-10, M-15 and M-20 grades.

UNIT- III

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.

(Or)

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′

CD              170°50′          350°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.

UNIT- IV

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.

UNIT- V

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.