MCQOPTIONS
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MCQOPTIONS
This section includes 358 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The operation of forming or bringing the clear image of the object in the plane of cross hairs is known as ______ |
| A. | Centering |
| B. | Adjusting |
| C. | Parallax correcting |
| D. | Focusing |
| Answer» E. | |
| 2. |
The establishment of line of sight, therefore, involves the following two essential conditions, the real image must be formed in front of the eyepiece, the plane of the image must coincide with that of the cross hairs. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The focal length of an objective varies with eyepiece. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The eyepiece magnifies the cross hairs. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
In surveyor’s telescope, the convex lens nearest to the eye is called ____________ |
| A. | Eye piece |
| B. | Objective |
| C. | Diaphragm |
| D. | Surveyor lens |
| Answer» B. Objective | |
| 6. |
In surveyor’s telescope, the convex lens nearest to the object is called ______________ |
| A. | Eye piece |
| B. | Objective |
| C. | Diaphragm |
| D. | Surveyor lens |
| Answer» C. Diaphragm | |
| 7. |
Surveyor’s telescope is an adaptation of Kepler’s telescope. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In geodetic surveys higher accuracy is achieved, if |
| A. | curvature of the earth surface is ignored |
| B. | curvature of the earth surface is taken into account |
| C. | angles between the curved lines are treated as plane angles |
| D. | none of these. |
| Answer» C. angles between the curved lines are treated as plane angles | |
| 9. |
Tilt of the staff in stadia tacheometry increases the intercept if it is |
| A. | away from the telescope pointing down hill |
| B. | towards the telescope pointing up-hill |
| C. | away from the telescope pointing up-hill |
| D. | none of these. |
| Answer» D. none of these. | |
| 10. |
If h1 and h2 are the differences in level between ground and the formation levels, m is the slope of the sloping sides. D is the distance between the cross sections then, prismoidal correction for a level section is |
| A. | D/2m(h1 - h2) |
| B. | D/3m(h1 - h2) |
| C. | D/6m(h1 - h2)² |
| D. | D/6m(h1 - h2)³ |
| Answer» D. D/6m(h1 - h2)³ | |
| 11. |
True meridian of different places |
| A. | converge from the south pole to the north pole |
| B. | converge from the north pole to the south pole |
| C. | converge from the equator to the poles |
| D. | run parallel to each other. |
| Answer» D. run parallel to each other. | |
| 12. |
Short offsets are measured with |
| A. | an ordinary chain |
| B. | an invar tape |
| C. | a metallic tape |
| D. | a steel tape. |
| Answer» B. an invar tape | |
| 13. |
In case of reduction of levels by the height of instrument method, |
| A. | ∑ B.S. - ∑ F.S. = difference in R.L.S of the first station and last station |
| B. | ∑ (R.L. + I + F.S.) - first R.L = ∑ (H.I. + No. of R.L.s.) |
| C. | both (a) and (b) above |
| D. | neither (a) nor (b). |
| Answer» E. | |
| 14. |
The true meridian of a place is the line in which earth's surface is intersected by a plane through |
| A. | east and west points |
| B. | zenith and nadir points |
| C. | north and south geographical poles |
| D. | north and south magnetic poles. |
| Answer» D. north and south magnetic poles. | |
| 15. |
Reduced bearing of a line is an angle between |
| A. | north line and given line measured clockwise |
| B. | north line and given line measured anticlockwise |
| C. | east or west and the given line |
| D. | given line and the part of the meridian whether N end or S end, lying adjacent to it. |
| Answer» E. | |
| 16. |
Horizontal distances obtained tacheometerically are corrected for |
| A. | slope correction |
| B. | temperature correction |
| C. | refraction and curvature correction |
| D. | all the above. |
| Answer» D. all the above. | |
| 17. |
The least count of a vernier scale is |
| A. | sum of the smallest divisions of main and vernier scales |
| B. | value of one division of the primary scale divided by total number of divisions of vernier scale |
| C. | value of one division of vernier scale divided by total number of divisions of primary scale |
| D. | none of these. |
| Answer» C. value of one division of vernier scale divided by total number of divisions of primary scale | |
| 18. |
While surveying a plot of land by plane tabling, the field observations |
| A. | and plotting proceed simultaneously |
| B. | and plotting do not proceed simultaneously |
| C. | and recorded in field books to be plotted later |
| D. | all the above. |
| Answer» B. and plotting do not proceed simultaneously | |
| 19. |
A bearing of a line is also known as |
| A. | magnetic bearing |
| B. | true bearing |
| C. | azimuth |
| D. | reduced bearing |
| Answer» C. azimuth | |
| 20. |
For orientation of a plane table with three points A, B and C, Bessel's drill is |
| A. | Align b through a and draw a ray towards c, align a through b and draw a ray towards c, finally align c through the point of intersection of the previously drawn rays |
| B. | Align c through a and draw a ray towards b, align a through c and draw a ray towards b, finally align b through the point of intersection of the previously drawn rays |
| C. | Align c through b and draw a ray towards a, align b through c and draw a ray towards a, finally align a, through the point of intersection of the previously, drawn rays |
| D. | In the first two steps any two of the points may be used and a ray drawn towards the third point, which is sighted through the point of intersection of previously drawn rays in the final step. |
| Answer» E. | |
| 21. |
The properties of autogenous curve for automobiles are given by |
| A. | true spiral |
| B. | cubic parabola |
| C. | Bernoulli's Lemniscate |
| D. | clothoid spiral. |
| Answer» D. clothoid spiral. | |
| 22. |
The angle between two plane mirrors of optical square, is |
| A. | 20° |
| B. | 30° |
| C. | 45° |
| D. | 60° |
| Answer» D. 60° | |
| 23. |
The ratio of the linear displacement at the end of a line, subtended by an arc of one second to the length of the line, is |
| A. | 1:206 300 |
| B. | 1:3440 |
| C. | 1:57 |
| D. | 1:100. |
| Answer» B. 1:3440 | |
| 24. |
The angle of intersection of a curve is the angle between |
| A. | back tangent and forward tangent |
| B. | prolongation of back tangent and forward tangent |
| C. | forward tangent and long chord |
| D. | back tangent and long chord. |
| Answer» B. prolongation of back tangent and forward tangent | |
| 25. |
If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed. |
| A. | R/10 |
| B. | R/15 |
| C. | R/20 |
| D. | R/25. |
| Answer» D. R/25. | |
| 26. |
Volume of the earth work may be calculated by |
| A. | mean areas |
| B. | end areas |
| C. | Prismoidal formula |
| D. | all the above. |
| Answer» E. | |
| 27. |
The slope correction for a length of 30 m along a gradient of 1 in 20, is |
| A. | 3.75 cm |
| B. | 0.375 cm |
| C. | 37.5 cm |
| D. | 2.75 cm. |
| Answer» B. 0.375 cm | |
| 28. |
The orthographical projection of a traverse leg upon the reference meridian, is known as |
| A. | departure of leg |
| B. | latitude to the leg |
| C. | co-ordinate of the leg |
| D. | bearing of the leg. |
| Answer» C. co-ordinate of the leg | |
| 29. |
The Huygen's telescope eye piece |
| A. | is aplanatic |
| B. | achromatic |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» D. neither (a) nor (b). | |
| 30. |
Ramsden eye-piece consists of |
| A. | two convex lenses short distance apart |
| B. | two concave lenses short distance apart |
| C. | one convex lens and one concave lens short distance apart |
| D. | two plano-convex lenses short distance apart, with the convex surfaces facing each other. |
| Answer» E. | |
| 31. |
An angles of 45° with a chain line may be set out with |
| A. | optical square |
| B. | open cross staff |
| C. | Fench cross staff |
| D. | prismatic square. |
| Answer» D. prismatic square. | |
| 32. |
Number of links per metre length of a chain are |
| A. | 2 |
| B. | 5 |
| C. | 8 |
| D. | 10 |
| Answer» C. 8 | |
| 33. |
Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known |
| A. | plane surveys |
| B. | geodetic surveys |
| C. | geographical surveys |
| D. | topographical surveys. |
| Answer» C. geographical surveys | |
| 34. |
Keeping the instrument height as 1.5 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than |
| A. | 25 cm |
| B. | 20 m |
| C. | 45 m |
| D. | 10 m |
| Answer» D. 10 m | |
| 35. |
A theodolite is said to be in perfect adjustment if |
| A. | rotation axis is vertical to the transit axis |
| B. | transit axis is perpendicular to line of collimation |
| C. | line of collimation sweeps out a vertical plane while the telescope is elevated or depressed |
| D. | all the above. |
| Answer» E. | |
| 36. |
The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is |
| A. | 502.685 m |
| B. | 501.345 m |
| C. | 501.340 m |
| D. | 504.030 m |
| Answer» D. 504.030 m | |
| 37. |
Cross hairs in surveying telescopes, are fitted |
| A. | in the objective glass |
| B. | at the centre of the telescope |
| C. | at the optical centre of the eye piece |
| D. | in front of the eye piece. |
| Answer» E. | |
| 38. |
For high sensivity of the bubble tube |
| A. | a liquid of low viscosity is used |
| B. | a liquid of low surface tension is used |
| C. | the bubble space should be long |
| D. | all the above. |
| Answer» E. | |
| 39. |
Removal of parallax, may be achieved by focussing |
| A. | the objective |
| B. | the eye-piece |
| C. | the objective and the eye-piece |
| D. | none of these. |
| Answer» D. none of these. | |
| 40. |
To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with AB. A ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is |
| A. | unique and correct |
| B. | incorrect |
| C. | manifold and correct |
| D. | not reliable. |
| Answer» D. not reliable. | |
| 41. |
ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is |
| A. | 90° |
| B. | 120° |
| C. | 210° |
| D. | 270° |
| Answer» D. 270° | |
| 42. |
Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than |
| A. | 30 m |
| B. | 25 m |
| C. | 20 m |
| D. | 15 m |
| Answer» C. 20 m | |
| 43. |
For true difference in elevations between two points A and B, the level must be set up |
| A. | at any point between A and B |
| B. | at the exact mid point of A and B |
| C. | near the point A |
| D. | near the point B. |
| Answer» C. near the point A | |
| 44. |
The radius of curvature of the arc of the bubble tube is generally kept |
| A. | 10 m |
| B. | 25 m |
| C. | 50 m |
| D. | 100 m |
| Answer» E. | |
| 45. |
If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, is |
| A. | (R - S) tan θ/2 - L/2 |
| B. | (R + S) tan θ/2 - L/2 |
| C. | (R + S) tan θ/2 + L/2 |
| D. | (R - S) tan θ/2 + L/2 |
| Answer» D. (R - S) tan θ/2 + L/2 | |
| 46. |
The real image of an object formed by the objective, must lie |
| A. | in the plane of cross hairs |
| B. | at the centre of the telescope |
| C. | at the optical centre of the eye-piece |
| D. | anywhere inside the telescope. |
| Answer» B. at the centre of the telescope | |
| 47. |
Diopter is the power of a lens having a focal length of |
| A. | 25 cm |
| B. | 50 cm |
| C. | 75 cm |
| D. | 100 cm |
| Answer» E. | |
| 48. |
The 'fix' of a plane table station with three known points, is bad if the plane table station lies |
| A. | in the great triangle |
| B. | outside the great triangle |
| C. | on the circumference of the circumscribing circle |
| D. | none of these. |
| Answer» D. none of these. | |
| 49. |
An imaginary line joining the points of equal elevation on the surface of the earth, represents |
| A. | contour surface |
| B. | contour gradient |
| C. | contour line |
| D. | level line |
| Answer» D. level line | |
| 50. |
Hydrographic surveys deal with the mapping of |
| A. | large water bodies |
| B. | heavenly bodies |
| C. | mountaineous region |
| D. | canal system |
| Answer» B. heavenly bodies | |