Surveying and Levelling MCQs Quiz Multiple Choice Questions & Answers

1. The size of a plane table is

1. 750 mm × 900 mm
2. 600 mm × 750 mm
3. 450 mm × 600 mm
4. 300 mm × 450 mm

2. Straight, parallel and widely spaced contours represent

1. A steep surface
2. A flat surface
3. An inclined plane surface
4. Curved surface

3. Bowditch rule is applied to

1. An open traverse for graphical adjustment
2. A closed traverse for adjustment of closing error
3. Determine the effect of local attraction
4. None of the above

4. Two contour lines, having the same elevation

1. Cannot cross each other
2. Can cross each other
3. Cannot unite together
4. Can unite together

5. Different grades are joined together by a

1. Compound curve
2. Transition curve
3. Reverse curve
4. Vertical curve

6. The vertical angle between longitudinal axis of a freely suspended magnetic needle and ahorizontal line at its pivot, is known

1. Declination
2. Azimuth
3. Dip
4. Bearing

7. The smaller horizontal angle between the true meridian and a survey line, is known

1. Declination
2. Bearing
3. Azimuth
4. Dip

8. Which of the following methods of contouring is most suitable for a hilly terrain?

1. Direct method
2. Square method
3. Cross-sections method
4. Tachometric method

9. If the smallest division of a vernier is longer than the smallest division of its primary scale, thevernier is known as

1. Direct vernier
2. Double vernier
3. Retrograde vernier
4. Simple vernier

10. The line normal to the plumb line is known as

1. Horizontal line
2. Level line
3. Datum line
4. Vertical line

11. The real image of an object formed by the objective must lie

1. In the plane of cross hairs
2. At the centre of the telescope
3. At the optical centre of the eye-piece
4. Anywhere inside the telescope

12. The line of collimation method of reduction of levels, does not provide a check on

1. Intermediate sights
2. Fore sights
3. Back sights
4. Reduced levels

13. Contour interval is

1. Inversely proportional to the scale of the map
2. Directly proportional to the flatness of ground
3. Larger for accurate works
4. Larger if the time available is more

14. Hydrographic surveys deal with the mapping of

1. Large water bodies
2. Heavenly bodies
3. Mountainous region
4. Canal system

15. Subtense bar is an instrument used for

1. Levelling
2. Measurement of horizontal distances in plane areas
3. Measurement of horizontal distances in undulated areas
4. Measurement of angles

16. For the construction of highway (or railway)

1. Longitudinal sections are required
2. Cross sections are required
3. Both longitudinal and cross sections are required
4. None of these

17. Volume of the earth work may be calculated by

1. Mean areas
2. End areas
3. Trapezoidal
4. All the above

18. Which of the following methods of theodolite traversing is suitable for locating the details whichare far away from transit stations?

1. Measuring angle and distance from one transit station
2. Measuring angles to the point from at least two stations
3. Measuring angle at one station and distance from other
4. Measuring distance from two points on traverse line

19. Detailed plotting is generally done by

1. Radiation
2. Traversing
3. Resection
4. All of the above

20. In direct method of contouring, the process of locating or identifying points lying on a contour is called

1. Ranging
2. Centring
3. Horizontal control
4. Vertical control

21. The two point problem and three point problem are methods of

1. Resection
2. Orientation
3. Traversing
4. Resection and orientation

22. The length of a traverse leg may be obtained by multiplying the latitude and

1. Secant of its reduced bearing
2. Sine of its reduced bearing
3. Cosine of its reduced bearing
4. Tangent of its reduced bearing

23. The line of sight is kept as high above ground surface as possible to minimise the error in theobserved angles due to

1. Shimmering
2. Horizontal refraction
3. Vertical refraction
4. Both shimmering and horizontal refraction

24. Chain surveying is well adopted for

1. Small areas in open ground
2. Small areas with crowded details
3. Large areas with simple details
4. Large areas with difficult details

25. The chord of a curve less than peg interval, is known as

1. Small chord
2. Sub-chord
3. Normal chord
4. Short chord

26. In levelling operation,

1. The first sight on any change point is a back sight
2. The second sight on any change point is a fore sight
3. The line commences with a fore sight and closes with a back sight
4. The line commences with a back sight and closes with a foresight

27. Contour interval is

1. The vertical distance between two consecutive contours
2. The horizontal distance between two consecutive contours
3. The vertical distance between two points on same contour
4. The horizontal distance between two points on same contour

28. To avoid large centering error with very short legs, observations are generally made

1. To chain pins
2. By using optical system for centering the theodolite
3. To a target fixed on theodolite tripod on which theodolite may be fitted easily
4. All the above

29. Check lines (or proof lines) in Chain Surveying, are essentially required

1. To plot the chain lines
2. To plot the offsets
3. To indicate the accuracy of the survey work
4. To increase the out-turn

30. Ramsden eye-piece consists of

1. Two convex lenses short distance apart
2. Two concave lenses short distance apart
3. One convex lens and one concave lens short distance apart
4. Two Plano-convex lenses short distance apart, with the convex surfaces facing each other