Surveying-II Question Paper of 3rd Semester Civil(D) Download Previous Years Question Paper 4

S.B. Roll No. _____________

SURVEYING-I1

3rd Exam/Civil/5147/May’08

Duration : 4 Hrs.

Section A

Q1 i) Fill in the blanks:

a.     Chain survey is suitable in ________ country.

b.     At poles, the magnetic dip is equal to _________

c.      Invar tape _______ to base for ordinary work

d.     Optical square is a _______ instrument.

e.      Offset rod is used for taking _______ offsets.

State true or false:

f.       Correction for sag is always negative.

g.     Invar tape is used for accurate measurement.

h.     Optical square is used foresting out  right angles.

i.       The least count of a prismatic compass is 30

j.       Fore bearing and back bearing differ by 180

Section –B

Note: Attempt any ten questions

2.

a)     What are true and magnetic bearings?

b)    What is dip of the needle?

c)     Discuss various operations in plane tabling/

d)    What do you mean by magnetic declination?

e)     What do you mean by strength of fix?

f)      Explain principle of chain surveying.

g)     Give principle of dumpy levelling.

h)    Explain traversing.

i)       Explain rise and fall method of levelling.

j)       Explain limiting length of an offset in chain surveying.

k)    Explain the sensitivity of bubble tube.

Section –C

Note: Attempt any two questions.

3. The observed staff reading on a staff held at a was 0.325m. The staff was found to be 15cm off the vertical through its bottom. Find the correct staff readings.

4. 

     a. Calculate the angle BAC if bearing of AB is S 45-45 W and AC is N 80-O’W.

     b. convert RB to WCB or WCB to RB as the case may be 255 10 and 85-45 W

5.

a)     A 100m tap is held 2m out of line. What is the true length?

b)    What are the mistakes in chaining?

c)     Explain limits of errors in chaining.