r0cY44

Fourth Semester B.E. Degree Examination, Dec.2013 /Jan.20l4Sunreying - ll

Time: 3 hrs. Max. Marks:100Note: Answer FIVE full questions, selecting

.,..""".', at least TWO questions from each part. ::,,,,

"' l"

::.

' .'ll" PART - A .'.. ;

I a. List out the miscellaneous operations that can be performed with a transit tlreodolite and

explain the procedure for setting the horizontal angle which is less than the least count of theinstrument (10 Marks)

b. Explain the procedures for extending a straight line using a transit'when it is in adjustmentand not in adjustment. ''. (10 Marks)

USN

4,., a.

b.c.

6)ooLa

C)ts0)

EgQ;-

-y, -N,9

=rnoJl I

,: ol

i-- 50gc)oaFO

o>?a

a=

o()

b0i(!(€

-vd-

!(!

,(J

5E

^X

oj

6:3oqtE

!o5.!>, q:bo-co0(J=gotr>=oo-

L,<-.,; 6i

ooz

oq

2 a. What are the fundamental lines of a transit theodolite and state the desired relationshipsbetween them. ,,,,,, (10 Marks)

b. A dumpy level was set up at 'C' exactly midway between 'A' and 'B' which are 100 mapart. The readings on the,'st4Jf when held at the stations 'A" and 'B' were 2.250 and2.025respectively. The instrumeilt,has then moved and set up at 'D' on the line 'BA' producedwhich is at a distance of 20 m from'A'. The respective staff readings on'A'and'B'were1.875 and 1.670. Calculate the coirect staff readings on'A' and'B'to give a horizontal lineof sight and state whether the line oicollimation is inclined upwards or downwards.

,:,....,,,,,,

3 a. An instrument was set up at 'P{ alld the angle.,o"f elevation to a vane 4 m above the foot ofthe staff held at 'Q' was 9o30,', The horizontal distance between 'P' and 'Q' was measured tobe 2 km. Determine the RL of the staff station'Q'. given that the back sight reading taken ona bench mark of RL 50.217 m was 0.880 m. Apply the necessary corrections. (06 Marks)

b. Write a note on total station and mention its advantages. - (02 Marks)c. To find the elevatio,ir of the top 'Q' of a hill, a flag staff of 2 m height was erected and

observations were made from two stations 'P' and 'R' 60 rti';-a The horizontal angle

measured at 'R' between the top of the flag staffand 'P' was 68o18'and that measured at 'P'between'R' and the top of the flag staff was 60o30'. The angle of eleVation to the top of theflag ;iaff 'Q' was measured to be 10o12' at'P' and that at 'R' was 10o4$r. Staff readings onthe bench mark when the instrument was at P : 1.965 and that when the inStrument was atR: Z.OSS. Calculate the elevation of the top of the hill if that of bench mark was 250.075 m.

,,,,, '"'l " '1"{12 }Iarks)

(tr0 Marks)

Write a note on tacheometric surveying. Derive the standard expression for 1

distance with usual notations.Briefly explain the stadia method and subtense method of tacheometry.Ihe following observations were made using a tacheometer fitted with an ahavins the constant to be 100 and the staff held vertical.

he ho TI

',Fc

,{Arafl#

i{.tl\t , lr! r*.fr

Mffirfo"k*q &fh$- 1

$affiY r

;.(

InstrumentStation

Height ofInstrument

StaffStation

WCB VerticalAngle

Hair Readings

0 1 550 AB

30030'

75030',

4"30',

10015',

1.155, r.755,2.355r.250,2.000,2.750

RL oF0.--s.l150.000 m

Calculate: (i) The horizontal distance AB (ii) RL of AB (iii) Gradient from A to B(08 Marks)

For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com

www.pediawikiblog.com

5a.

b.

c.

t0cY44

PART _ BDefine degree of a curve. Establish the relationship between degree of curve and its radius.

(04 Marks)Explain the method of setting out a simple curve by the offsets from chord produced.

(06 Marks)Tabulate the necessary data to set out a right handed simple circular curve in the field havinga radius of 250 m, connecting two straiglrts which intersect at chainage 1250 m at an angle

150'by Rankine's method. Take peg interval of 20 m and least count of the instrument

,, as 20" ,"(10 Marks)

6a.

b.

7a.

b.

c.

What do you understand by a reverse curve and mention its significance. Derive therelationships between various elements of a reverse curve between the parallel straights.

(10 Marks)Two tangents AB and BC intersect at B. Another line DE intersects AB and BC at D and E

such that Z/ff,E: 150o and IDEC: 140o. The radius of the first eurve is 200m and that ofthe second is 3Q0 rn. Calculate all the data necessary for setting out a compound curve if the

Write a note on traniition curve and list out its advantages. What are the pre-requisites forthe design of a transition curve? (08 Marks)Calculate the length of the iransition culve, when the rate of radial acceleration is 30 cm/s3,allowable speed on curve is 60 kmph and radius of the circular curve is 200 m. (04 Marks)When would you prefer a vertical curve and how are these classified? Explain the role ofchange of gradient in the design of a vortical curve. (08 Marks)

a. A page of the field book of a cross-staff Survey is given in Fig.Q8(a). Plot the required figureand compute the area. (10 Marks)

F- - *-6D

---E

D -z-o -

Fig.Q8(a)An embankment of width 10 m and side slopes l%:1 is required to be made on a groundwhich is level in a direction transverse to the center line. The central heights at 40 mintervals are as follows:

0.90, 1.25, 2.15, 2.50, 1.85, 1.35 and 0.85Calculate the amount of earthwork according to :

5s

bAqo

4o

20

AA

(ii) Prismoidal formula

* ,i< {< {< ,,<

2 of2

(i) Trapezoidal formula (10 Marks)

For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com

www.pediawikiblog.com