TED (ls) -2011

(REVTSTON - 20ls)

Reg. No.

Signature

DIPLOMA EXAMINATION IN ENGINEERING/TECHNOLOGY/MANAGEMENT/COMMERCIAL PRACTICE - OCTOBER, 2OI7

SURVEYING.I

(lvlaximum marks : 100)

lTime :3 hours

PAR| - A(Madmum maks : 10)

Marks

I Answer a// questions in one or two sentences. Each question caries 2 marks.

1. Differentiate betwe,en Plane strveying and Geodetic surveying.

2. What are the temporary adjusrnents to be done while setting plane table over

a station point ?

3. What is Isogonic lines ?

4. Dfferentiae betrveen fore sight and back sight in levelling.

. 5. Name the vertical disme between any two consecutive contours-

(5 x 2: l0)

PART - B

(Maximum marks : 30)

il Answer any five of the following questions. Each question carries 6 marks.

1. Explain the procedure for chaining along a sloping ground.

2. What are the points to be considered while selecting survey stations ?

3. What is rangng and_explain the different types of rangng ?

4. Findthe back bearing of the given lines from the following fore bearings.

Line Magnetic bearing

PQ

QS

BC

56"2t',

s28045'E

s30050'w

5. Differentiate benveen profile levelling and cross sectioning.

6. Differentiate between Countow and Countour Interval.

7. Define reciprocal levelling and explain the procedure for reciprocal levelling.

(5x6=30)

: l8l

MA'DIN

POLY

TECHNIC C

OLLEGE

2

Marks

PART-- C

(Maximum mark : 60)

(Answer one fi.rll question tom each urit Each frrll question carries 15 marks')

Urrr - I

III (a) What are rhe primary classifications of srweying ?

(b) Explain the method of Intersection in Plane Table Stweying'

On

IV (a) The distance between two points measured with a 30m chain was recorded as

648m. Afterrwords found that the chain was 60rnm short' Find the distance

between the poinrs. 7

(b) What is local attraction and explain briefly' How this can be detected and

eliminded ? 8

UNtr - II

V Below are the bearings observed in traversing with a compass. Compute the interior

angles. Also apply the check.

Line F-orebearing

AB

BC

CD

DE

EA.

60'30'

122"0'

46"0'

205"30'

300'0'

7

8

15

On

VI (a) Differentiate between Prismatic compass and Surveyon compass. 7

(b) Explain the advantages and disadvantages of Plane Table Surveying. 8

UNr r -- Ill

VII (a) Explain the temporary adjustments of a level.

(b) Explain the methods of booking and reducing the elevation of points lrom the

observed staff readings. And also comparc the two methods.

()R

1

MA'DIN

POLY

TECHNIC C

OLLEGE

3

MarksVIII It required to ascertain the elevation gf two points p and Q and a line of levelswas nm from P to Q' The levelling then "oniinu"d

io a benchmark of g3.500.The readings obtained as shown berow. obtain the R.L. of p and e.

l5

xUNrr - IV

(a) What are the characteristics of contours ?

O) Explain about the different ffis of enors in levelling.

On

The following observations were made in a reciprocal levelling.

Find (i) the RL of Q.

(ii) The Combined correction for curvature and refraction. l5

1.622

1.874

2.032

0.984

1.906

0.354

1.780

1.122

2.824

2.036

a

B.M

Inst at Staf readings on Remarl<s

P a Distance betweenPandQ=1010m

P 1.824 2.748 R of P :126.386

a 0.928 r.606

MA'DIN

POLY

TECHNIC C

OLLEGE