## Surveying - Dec 2016

### Civil Engineering (Semester 3)

TOTAL MARKS:

TOTAL TIME: HOURS

**1(a)** Inaccessible points may be located by the

a) Radiation b) Intersection c) Traversing d) Resection(1 marks)
**1(b)** The U-fork and plumb bob are required for

a) Centering b) Orientation c) Levelling d) Bisecting(1 marks)
**1(c)** The lower plate of theodolite is fixed to

a) Inner spindle b) Outer spindle c) Levelling head d) Shifting head(1 marks)
**1(d)** If f1 be the focal length of the objective and f2 that of the ey-piece, then magnifying power is given by

a) f1 X f2 b) f1 / f2 c) f2 / f1 d) f1 - f2(1 marks)
**1(e)** Approximate bisection in at theodolite is done by the

a) Focussing screw b) Tangent screw c) Clamp screw d) Foot screw(1 marks)
**1(f)** Balancing of Traversr is done according to the

a) Bowditch's rule b) Transit rule c) Third rule d) All above(1 marks)
**1(g)** The difference between face left and face right observations of theodolite is 4'. The error is

a) 4' b) 4" c) 2' d) 0'(1 marks)
**1(h)** Overturning of vehicles on a curve can be avoided by using a

a) Compound curve b) Reverse curve c) Vertical curve d) Transition curve(1 marks)
**1(i)** The radius of 1° curve is

a) 1719m b) 1917m c) 1918m d) 1819m(1 marks)
**1(j)** Combined correction for curvature and refraction in linear measurement is given by

a) 0.0785 D^{2} b) 0.0112 D^{2} c) 0.06735 D^{2} d) None of above(1 marks)
**11(k)** The area of zero circle is equal to

a) C b) M c) M x C d) M / C(1 marks)
**12(l)** For determination of the area of a figure bounded by straight lines.

a) squares b) rectangles c) triangles d) polygons(1 marks)
**13(m)** Where the depth of water is too much, machine used is kown as

a) fathometer b) leadline c) sounding poles d) sextant(1 marks)
**14(n)** The accessory used in setting out works is

a) boning rod b) traveller c) batter board d) all of the above(1 marks)
**2(a)** Explain three instruments of plane table survey with sketch.(3 marks)
**2(b)** What is orientation? Discuss the different methods of orientations of a plane table.(4 marks)

### Solve any one question.Q2(c) &Q2(d)

**2(c)** What is closing error in a closed traverse? How will you find out its magnitude and direction?(7 marks)
**2(d)** List the Fundamental lines of a theodolite and explain briefly the desired relationship between these lines.(7 marks)

### solve any one question Q.3(a,b,c) &Q4(a,b,c)

**3(a)** Define the following:

a) Shore signals b) Range c) Lead line(3 marks)
**3(b)** Differntiate between trapzoidal rule and Simpson's rule(4 marks)
**3(c)** Discuss the steps involved in setting out the positions of piers of a bridge.(7 marks)
**4(a)** Give Classification of theodolites.(3 marks)
**4(b)** Compare/distinguish between trigonometric levelling and direct levelling.(4 marks)
**4(c)** Explain the procedure of setting out of building foundation.(7 marks)

### solve any one question Q.5(a,b,c) &Q6(a,b,c)

**5(a)** What is meant by balancing a traverse? State the various rules used to do this.(3 marks)
**5(b)** Derive formula for height h and distance D in trigonometric leveling when two instruments are set at different level.(4 marks)
**5(c)** Explain the procedure for setting out simple circular curve with a tape and a theodolite ( Rankine's method)(7 marks)
**6(a)** Define transition curve, compound curve and reverse curve.(3 marks)
**6(b)** Define Sounding and purpose for which soundings are required.(4 marks)
**6(c)** A single-level section has a formation width of 7.5m. And side slopes 2:1. The depth of cutting at the centre at every 30 m. Intervals is 1.8, 2.175,2.55, 2.925, and 3 m. Find the volume of earthwork in the length of 120 by. Trapezoidal formula and Prismoidal formula.(7 marks)

### solve any one question Q.7(a,b,c) &Q8(a,b,c)

**7(a)** List the various methods of calculating the area of a closed traverse? Explain any one.(3 marks)
**7(b)** Define Hydrographic surveying. What are the various operations conducted in hydrographic surveying?(4 marks)
**7(c)** Two tangents intersect at a chainage od 1400m the defelection angle being 24°. Calculate the following quantities for setting out a curve of radius 275m.

1) Tangent Length 2) Length of Long Chord 3) Lengt of Curve 4) Chainage of point commencement and tangency 5) Apex distance.(7 marks)
**8(a)** Describe types of vertical curves with sketches.(3 marks)
**8(b)** What are the elements of simple circular curve? Explain with neat sketch.(4 marks)
**8(c)** The latitude and departures of the lines of a closed traverse are given below. Calculate area of traverse by Co-ordinates method and Meridian distance method.

Line | Northing | Southing | Easting | Westing |

AB | - | 157.20 | 154.80 | - |

BC | 210.50 | - | 52.50 | - |

CD | 175.40 | - | - | 98.30 |

DA | - | 228.70 | - | 109.0 |