Surveying, Question Paper of Civil Engineering 4th Semester, Download Question Paper 4

Roll No­­­­­­­­­_________

SURVEYING

4^th Exam /Civil/5163/May’06

                                                             

Duration 3 Hrs.

Section –A

1.     Fill in the blanks:

a.     In leveling, the very first reading taken is called _____

b.     In case of river, vision is free, but _____ is obstructed.

c.      The least count of a prismatic compass is _________

d.     In correct length of chain is _______ source of error.

e.      The principle of chain survey is to divide the area into network of _______

2.       State true or false :-

a.     The magnetic needle remains horizontal at equator.

b.      In prismatic compass, ZERO is marked at north end.

c.      In a well conditioned triangle, the angles are either less than 30 or more than 120

d.     The fore and back bearings of a line always differ by 180 where there is no iccal attraction. 

e.      In leveling, station is a point where staff is held.

Section-B

3.     Attempt any ten questions.

a.     Differentiate between plane and geodetic survey.

b.     Explain the principle of surveying.

c.      Name various operation in chain surveying.

d.     How a prismatic compass is set up at a station, name the various steps.

e.      Define ILL conditioned triangles

f.       What is closing error in a traverse?

g.     Differentiate between true and magnetic bearing.

h.     Define axis of bubble tube.

i.       Name temporary adjustments of a dumpy level.

j.       What errors are eliminated in reciprocal leveling?

k.     Differentiate between dumpy level and titing level.

l.       Define compensating errors and cumulative errors.

Section-C

4.     Attempt any two questions

a.      

                                                             i.      What error occur in changing , explain.

                                                           ii.      A chain was tested before starting a survey and was found to be exactly 20 m. it was again tested at end survey and was found to be 20.20m. the area of which was drawn to a scale of 1cm =2.5 , was 235cm² . find the true area of the field.

b.       

                                                             i.      What is local attraction? What are its causes ? how is it detected ?

                                                           ii.      In a traverse following bearings were observed with compass

c.               

                                                             i.      Give the concept of level surface, horizontal surface and vertical surface.

                                                           ii.      The following observations were taken in reciprocal. Find the R.L. of A.