Surveying and levelling multiple choice practice questions SURVEYING Multiple choice Questions for practice 1. The Random errors tend to accumulate proportionally to Numbers of operations involved Reciprocal of operations involved Square root of the number of operation involved Cube root of the number of operation involved 2. Different grades are joined together by a Compound curve Transition curve Reverse curve Vertical curve 3. In direct method of contouring, the process of locating or identifying points lying on a contour is called Ranging Centering Horizontal control Vertical control 4. Which of the following methods of contouring is most suitable for a hilly terrain? Direct Method Square method Cross sections method Tacheometic method 5. In levelling operations When the instrument is being shifted, the staff must not be moved When the staff is being carried forward, the instrument must remain stationary Both a and b Neither a nor b 6. Contour interval is The vertical distance between two consecutive contours The horizontal distance between two consecutive contours The vertical distance between two points on same contour The horizontal distance between two points on same contour 7. Pick up the incorrect statement from the following: While measuring a distance with a tape of length 100.005 m, the distance to be increasing by 0.005 m for each tape length An increase in temperature causes a tape to increase in length and the measured distance is too large The straight distance between end points of a suspended tape is reduced by an amount called the sag correction A 100 m tape of cross section 10 mm × 0.25 mm stretches about 10 mm under 5 kg pull Answer: Option B 8. Detailed plotting is generally done by Radiation Travesring Resection All of the Above 9. The chord of a curve less than peg interval, is known as Small chord Sub chord Normal chord Short chord 10. Contour interval is Inversely proportional to the scale of the map Directly proportional to the flatness of ground Larger for accurate works Larger if the time available is more 11. If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be +50m , +86.6 m +86.6 m , -50 m +50 m , -86.6 m +70.7 m , -50 m 12. After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (1) Levelling (2) Orientation (3) Centering The correct sequence of these operations is 1,2,3 1,3,2 3,1,2 2,3,1 13. The size of a plane table is 750 mm × 900 mm 600 mm × 750 mm 450 mm × 600 mm 300 mm × 450 mm 14. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to Shimmering Horizontal refraction Vertical refraction Both shimmering and vertical refraction 15. Check lines (or proof lines) in Chain Surveying, are essentially required To plot the chain lines To plot the offsets To indicate the accuracy of the survey work To increase the out-turn 16. The smaller horizontal angle between the true meridian and a survey line, is known Declination Bearing Azimuth Dip 17. The line of collimation method of reduction of levels, does not provide a check on Intermidaiate sight Fore sight Back sight Reduced Levels 18. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as Direct vernier Double vernier Retrograde vernier Simple vernier 19. There are two stations A and B. Which of the following statements is correct? The fore bearing of AB is AB The back bearing of AB is BA The fore and back bearing of AB differ by 180° All of the above 20. A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is ∆/2 ∆/3 ∆/4 ∆/6 21. For the construction of highway (or railway) Longitudinal sections are required cross sections are required Both cross and Longitudinal sections are required None of these 22. Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations? Measuring angle and distance from one transit station Measuring angles to the point from at least two stations Measuring angle at one station and distance from other Measuring distance from two points on traverse line 23. To avoid large centering error with very short legs, observations are generally made To chain pins By using optical system for centering the theodolite To a target fixed on theodolite tripod on which theodolite may be fitted easily All of the above 24. The line normal to the plumb line is known as Horizontal line Level line Datum line Vertical line 25. The two point problem and three point problem are methods of Resection Orientation Traversing Resection and Orientation Loading … For other subjects click here Practice questions Feel free to shareWhatsAppTwitterTelegramFacebookLinkedInPinterest
