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Board : State Board of Technical Education
Subject : Surveying & Measurement
Document Type : Question Bank
State : Bihar
Website : sbtebihar.gov.in

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State Board Bihar Measurement Question Paper

Group-A

1. Four alternative answers are given to each question. Write down the correct answer for all questions. 1×20=20
(i) If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as :
(a) direct vernier
(b) double vernier
(c) simple vernier
(d) retrograde vernier.

Related : Bihar State Board of Technical Education 1st Year Basics of Computers & Information Technology Question Bank : www.pdfquestion.in/7359.html

(ii) In the case of geographical maps the scale is usually kept :
(a) 1 cm = 10 cm to 10 m
(b) 1 cm = 50 m to 2 km
(c) 1 cm = 5 km to 160 km
(d) 1 cm = more than 200 km.

(iii) The error due to bad ranging is called :
(a) cumulative error
(b) compensative error
(c) sometimes cumulative and sometimes compensative
(d) insignificant.

(iv) As per Indian standard, the length of one link of 30 metre chain should be :
(a) 30 cm
(b) 20 cm
(c) 40 m
(d) 10 cm.

(v) The position of point can be fixed more accurately by :
(a) perpendicular offs
(b) optical square
(c) Cross offset
(d) Oblique offset.

(vi) When the length of a chain line along a slope of ‘q ‘ is
(a) l (1 – sinq )
(b) l (1 – tanq )
(c) l (1 – cosq )
(d) l (1 – cos2q )

(vii) The first temporary adjustment of a prismatic compass is :
(a) Levelling
(b) Focussing of the prism
(c) Removing of parallax
(d) Centering.

(viii) The total number of zeroes graduated on surveyer’s compass is :
(a) 1
(b) 2
(c) 3
(d) 4

(ix) What is the whole circle bearing of a quadrant bearing N 15º 28′ W ?
(a) 195º 28′
(b) 164º 32′
(c) 344º 32′
(d) 344º 28’.

(x) If the magnetic bearing of a line is 60º 20′ and declination is 2º 50′ E at a place, the true bearing of the line will be :
(a) 57º 30′
(b) 63º 10′
(c) 62º 70
(d) None of these.

(xi) The working edge of an alidade is known as :
(a) ebonite edge
(b) fiducial edge
(c) straight edge
(d) graduated edge.

(xii) The two point of three point problems are methods of :
(a) orientation
(b) resection
(c) traversing
(d) both (a) and (b).

(xiii) Accurate centering of a plane table is done by:
(a) spirit level
(b) plumbing fork
(c) alidade
(d) ranging rod.

(xiv) Reading of metric levelling staff can be measured accurately :
(a) 0.005
(b) 0.001 m
(c) 0.01 m
(d) 0.1 m.

(xv) A ‘level’ line is a :
(a) horizontal line
(b) line parallel to the mean spheriodal surface of earth
(c) line passing through the centre of cross hairs and centre of eye piece
(d) line passing through the objective lens and the eye piece of a dumpy or tilting level.

(xvi) The rise & fall method of levelling provides a complete check on :
(a) back sight
(b) intermediate sight
(c) foresight
(d) all of the above.

(xvii) Closed contours with higher value inward, represent a :
(a) hill
(b) flat
(c) lake
(d) valley.

(xviii) The size of a theodolite is specified by :
(a) the length of telescope
(b) the diametre of vertical circle
(c) the diametre of lower plate
(d) the diametre of upper plate.

(xix) The cross hairs in surveying telescope are placed :
(a) midway between eye piece and objective lens
(b) much closer to the eye piece than objective lens
(c) much closer to the objective lens than to the eye piece
(d) anywhere between eye piece and objective lens.

(xx) The straight tangent line on longitudinal curve of centre of level tube is called :
(a) horizontal axis
(b) trunion axis
(c) stadia line
(d) axis of bubble tube.

Group B

2. Answer any four of the following questions : 5×4=20
(a) Explain the principle of the construction of a diagonal scale.
(b) Explain how a chain is tested and adjusted.
(c) What points to be kept in mind in fixing the main survey station in the field ?
(d) In an old survey made when the magnetic declination was 3º 38′ E, the magnetic bearing of a line AB was N 65º 12′ E. If the present magnetic declination inthe same locality is 2º 26′ W, find the true bearing and the present magnetic bearing of AB.
(e) Why orientation of plane table is done in plane table surveying ? Explain the method of orientation by back sighting.

Group C

Answer any five of the following questions : 8×5=40
3. Define survey. Explain in detail the classification of survey.

4. (a) Chaining and ranging is not possible due to obstacles of a building on chain line. Explain with a neat sketch how can you takle this obstacle.
(b) A chain line PQR corsses a river, Q & R being on the near and distant banks respectively. A line QM of length 80 m is set out at right angles to the chain line at Q. If the bearings of QM and MR are 287º 15′ and 62º15′ respectively, find the width of the river.

5. A square plot of land has been measured with the help of a steel tape whose length at 15º and 5 kg pull is 30 m. At the time of measurement the temperature was 22ºC and the pull applied was 8 kg. Also there was no sag in the tape. If the area of land was found to be 62500 m2 then find the correct area of land. The corss-sectional area of the tape is 0.04 cm2, value of modulus of elasticity of steel is 2 x 106 kg/cm2 and the co-efficient of linear expansion per ºC temperature is 30×10–7.

6. What is meant by a closing error in a closed traverse ? How would you adjust it graphically ?
7. Name the different equipments used in plane table survey. Explain the intersection method with a neat sketch.
8. The following readings were taken on a staff by a level. If the R.L. of the last point is 100.00 m, then find out the R.L. of the other points. The position of level is changed at the second, fifth and eighth reading. Apply the check also.
0.675; 1.230; 0.750; 2.565; 2.225;
1.935; 1.835; 3.220; 3.115; 2.875