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This set of Surveying Multiple Choice Questions & Answers (MCQs) focuses on Surveying Set 11
Q1 | A tie line in a chain surveying
- checks the accuracy of the framework
- enables the surveyor to locate the interior details which are far away from the main chain lines
- fixes up the directions of all other lines
- all of the above
Q2 | Generally, the deflection angle is measured twice, once with the telescope normal and once with the telescope reversed.
- TRUE
- FALSE
Q3 | Contour lines cross ridge or valley lines at
- 30?
- 45?
- 60?
- 90?
Q4 | The instrument used for setting out an offset at a right angle, is called
- open cross-staff
- french cross-staff
- adjustable cross-staff
- optical square
Q5 | The fundamental principle of surveying is to work from the
- whole to the part
- part to the whole
- lower level to higher level
- higher level to lower level
Q6 | In levelling, the effect of refraction may be taken as
- one-half
- one-third
- one-fifth
- one-seventh
Q7 | The latitude of a traverse line is obtained by multiplying its length with the cosine of its reduced bearing.
- Correct
- Incorrect
Q8 | In a whole circle system, the bearing of a line is measured
- always clockwise from the south point of the reference meridian towards the line right round the circle
- clockwise or anticlockwise from the east or west whichever is nearer the line towards north or south
- clockwise or anticlockwise from the north or south whichever is nearer the line towards east or west
- none of the above
Q9 | The horizontal angle between the true meridian and magnetic meridian is known as
- true bearing
- dip
- local attraction
- magnetic declination
Q10 | If the fore bearing of a line is
- 36? 15'
- 126? 15'
- 143? 45'
- 216? 15'
Q11 | When the magnetic bearing of the sun at noon is 185? 20', the magnetic declination will be
- 5? 20' east
- 5? 20' west
- 5? 20' north
- 5? 20' south
Q12 | The optical square is used to measure angles by
- refraction
- reflection
- double refraction
- double reflection
Q13 | The multiplying constant for the tacheometer is, generally, kept as
- 20
- 40
- 60
- 100
Q14 | The projection of a traverse line on a line parallel to the meridian is known as
- latitude
- departure
- bearing
Q15 | Direct ranging is possible only when the end stations are
- close to each other
- not more than 100 m apart
- mutually intervisible
- located at highest points in the sea
Q16 | The index glass in an optical square is
- wholly silvered
- wholly unsilvered
- one-fourth silvered and three-fourth unsilvered
- half silvered and half unsilvered
Q17 | The method of intersection in plane tabling is commonly used for
- locating the distant and inaccessible points
- locating the broken boundaries
- locating the points which may be used subsequently as the instrument stations
- all of the above
Q18 | A scale which has a common representative fraction, but read in different measures, is called a
- plain scale
- diagonal scale
- shrunk scale
- comparative scale
Q19 | When the position of a point is to be fixed most accurately, it should be located by oblique offsets.
- TRUE
- FALSE
Q20 | In levelling, the correction for combined curvature and refraction (in metres) is equal to
- 0.00785 D2
- 0.0785 D2
- 0.0112 D2
- 0.0673 D2
Q21 | In locating the details of inaccessible objects visible atleast from transit stations, the method used is
- by angles and distances from the same station
- by angle from one station and distance from the other station
- by distances from two different stations
- none of the above
Q22 | In geodetic surveying, the curvature of the earth is taken into consideration.
- Agree
- Disagree
Q23 | The height of instrument is the height of the centre of the telescope above the ground where the level is set up.
- TRUE
- FALSE
Q24 | When the image formed by the objective is not situated in the plane of cross-hairs,
- the cross-hairs should be adjusted
- the eye-piece should be focussed
- the objective should be focussed
- the parallex should be removed
Q25 | The magnitude of super-elevation depends upon the speed of the vehicle and the radius of the curve
- Correct
- Incorrect