MCQOPTIONS
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MCQOPTIONS
This section includes 301 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The ‘fix’ of a plane table from three known points, is good, if |
| A. | Middle station is nearest |
| B. | Middle station is farthest |
| C. | Either the right or left station is nearest |
| D. | None of these |
| Answer» B. Middle station is farthest | |
| 2. |
Deviation of the actual road gradient from the proposed contour gradient uphill side, involves |
| A. | Embankment on the centre line |
| B. | Excavation on the centre line |
| C. | Earth work on the centre line |
| D. | None of these |
| Answer» C. Earth work on the centre line | |
| 3. |
The angle of intersection of a contour and a ridge line, is |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 90° |
| Answer» E. | |
| 4. |
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 | |
| 5. |
A back sight |
| A. | Is always taken on a point of known elevation or can be computed |
| B. | Is added to the known level to obtain the instrument height |
| C. | Taken on an inverted staff is treated as negative |
| D. | All the above |
| Answer» E. | |
| 6. |
A sewer is laid from a manhole to a manhole , 250 m away along a gradient of 1 in 125. If the reduced level of the invert at is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at , is |
| A. | 208.75 m |
| B. | 202.75 m |
| C. | 206.75 m |
| D. | 211.75 m |
| Answer» D. 211.75 m | |
| 7. |
For preparation of a contour plan for a route survey |
| A. | Method of squares is used |
| B. | Method of trace contour is used |
| C. | Method of cross profile is used |
| D. | Indirect method of contouring is used |
| Answer» D. Indirect method of contouring is used | |
| 8. |
Geodetic surveying is undertaken |
| A. | For production of accurate maps of wide areas |
| B. | For developing the science of geodesy |
| C. | Making use of most accurate instruments and methods of observation |
| D. | All the above |
| Answer» E. | |
| 9. |
A well conditioned triangle has no angle less than |
| A. | 20° |
| B. | 30° |
| C. | 45° |
| D. | 60° |
| Answer» C. 45° | |
| 10. |
Ranging in chain survey means |
| A. | Looking at an isolated point not on the line |
| B. | Establishing an intermediate point on the line |
| C. | Determining the distance between end points |
| D. | Determining the offset distance |
| Answer» C. Determining the distance between end points | |
| 11. |
An ideal transition curve is |
| A. | Cubic parabola |
| B. | Cubic spiral |
| C. | Clothoid spiral |
| D. | True spiral |
| Answer» D. True spiral | |
| 12. |
For indirect ranging, number of ranging rods required, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 13. |
ABCD is a rectangular plot of land. If the bearing of the side AB is 75°, the bearing of DC is |
| A. | 75° |
| B. | 255° |
| C. | 105° |
| D. | 285° |
| Answer» B. 255° | |
| 14. |
A bearing of a line is also known as |
| A. | Magnetic bearing |
| B. | True bearing |
| C. | Azimuth |
| D. | Reduced bearing |
| Answer» C. Azimuth | |
| 15. |
The staff intercept will be |
| A. | Greater farther off the staff is held |
| B. | Smaller, farther off the staff is held |
| C. | Smaller, nearer the staff is held |
| D. | Same, wherever the staff is held |
| Answer» C. Smaller, nearer the staff is held | |
| 16. |
Cross-staff is used for |
| A. | Setting out right angles |
| B. | Measuring contour gradient |
| C. | Taking levels |
| D. | Measuring distances |
| Answer» B. Measuring contour gradient | |
| 17. |
Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is |
| A. | 10 cm |
| B. | 20 cm |
| C. | 30 cm |
| D. | 40 cm |
| Answer» D. 40 cm | |
| 18. |
The slope correction for a 3° slope for a length of 100 m, is |
| A. | -0.11 m |
| B. | -0.12 m |
| C. | -1.87 m |
| D. | -0.137 m |
| Answer» E. | |
| 19. |
While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates |
| A. | The rotation axis is vertical |
| B. | The trunnion axis is horizontal |
| C. | The line of collimation is perpendicular to vertical axis |
| D. | None of the above |
| Answer» B. The trunnion axis is horizontal | |
| 20. |
If is the length of a sub-chord and is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to |
| A. | 573 S/R |
| B. | 573 R/S |
| C. | 1718.9 R/S |
| D. | 1718.9 S/R |
| Answer» E. | |
| 21. |
The first reading from a level station is |
| A. | Foresight |
| B. | Intermediate sight |
| C. | Back-sight |
| D. | Any sight |
| Answer» D. Any sight | |
| 22. |
In reciprocal levelling, the error which is not completely eliminated, is due to |
| A. | Earth’s curvature |
| B. | Non-adjustment of line of collimation |
| C. | Refraction |
| D. | Non-adjustment of the bubble tube |
| Answer» D. Non-adjustment of the bubble tube | |
| 23. |
The area of a plane triangle ABC, having its base AC and perpendicular height , is |
| A. | ½ bh |
| B. | ½ ba sin C |
| C. | ½ bc sin A |
| D. | All the above |
| Answer» E. | |
| 24. |
Subtense tacheometry is generally preferred to if ground is |
| A. | Flat |
| B. | Undulating |
| C. | Mountainous |
| D. | Deserts |
| Answer» C. Mountainous | |
| 25. |
If the radius of a simple curve is 600 m, the maximum length of the chord for calculating offsets, is taken |
| A. | 15 m |
| B. | 20 m |
| C. | 25 m |
| D. | 30 m |
| Answer» E. | |
| 26. |
If the sight distance (S) is equal to the length of the vertical-curve (2l) joining two grades g1% and – g2%, the height of the apex will be |
| A. | (S – l)/400 × – |
| B. | – /400 |
| C. | – /1600l |
| D. | None of these |
| Answer» C. – /1600l | |
| 27. |
You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of |
| A. | Repetition |
| B. | Reiteration |
| C. | Double observations |
| D. | Exactness |
| Answer» B. Reiteration | |
| 28. |
Perpendicularity of an offset may be judged by eye, if the length of the offset is |
| A. | 5 m |
| B. | 10 m |
| C. | 15 m |
| D. | 20 m |
| Answer» D. 20 m | |
| 29. |
Keeping the instrument height as 1½ 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 | |
| 30. |
Profile levelling is usually done for determining |
| A. | Contours of an area |
| B. | Capacity of a reservoir |
| C. | Elevations along a straight line |
| D. | Boundaries of property |
| Answer» D. Boundaries of property | |
| 31. |
With usual notations, the expression V²/gR represents |
| A. | Centrifugal force |
| B. | Centrifugal ratio |
| C. | Super elevation |
| D. | Radial acceleration |
| Answer» C. Super elevation | |
| 32. |
The angle between two plane mirrors of optical square, is |
| A. | 20° |
| B. | 30° |
| C. | 45° |
| D. | 60° |
| Answer» D. 60° | |
| 33. |
If +0.8% grade meets -0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be |
| A. | 600 m |
| B. | 700 m |
| C. | 800 m |
| D. | 900 m |
| Answer» E. | |
| 34. |
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 | |
| 35. |
The distance between the point of intersection of an upgrade +g1% and downgrade % and the highest point of the vertical curve of length L, is |
| A. | – /400 |
| B. | + /400 |
| C. | + /800 |
| D. | – /800 |
| Answer» E. | |
| 36. |
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 | |
| 37. |
Stadia techeometry was discovered by James Watt in the year. |
| A. | 1670 |
| B. | 1770 |
| C. | 1870 |
| D. | 1900 |
| Answer» C. 1870 | |
| 38. |
In tangential tacheometry, an ordinary level staff is used |
| A. | Leaning towards the instrument for inclined sights upward |
| B. | Leaning away from the instrument for inclined sights downward |
| C. | Vertical in all cases |
| D. | None of these |
| Answer» D. None of these | |
| 39. |
lemniscate curve, the equation of the curve, is |
| A. | l = |
| B. | l = |
| C. | l = |
| D. | l = |
| Answer» B. l = | |
| 40. |
The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to |
| A. | The distance between the zero of gradient and the foot of the staff |
| B. | Twice the distance between the zero of graduation and the foot of the staff |
| C. | Thrice the distance between the zero of graduation and the foot of the staff |
| D. | None of the above |
| Answer» C. Thrice the distance between the zero of graduation and the foot of the staff | |
| 41. |
The construction of optical square is based, on the principle of optical |
| A. | Reflection |
| B. | Refraction |
| C. | Double refraction |
| D. | Double reflection |
| Answer» E. | |
| 42. |
If is the pull applied at the ends of tape in kg, is the length of tape between end marks in metres, is the weight of the tape in kg per metre run, then sag correction |
| A. | C = w²l3/24F² |
| B. | C = w3l²/24F² |
| C. | C = w²l3/24F3 |
| D. | C = 24w²l3/80F3 |
| Answer» B. C = w3l²/24F² | |
| 43. |
The area of any irregular figure of the plotted map is measured with |
| A. | Pentagraph |
| B. | Sextant |
| C. | Clinometer |
| D. | Planimeter |
| Answer» E. | |
| 44. |
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 | |
| 45. |
The accuracy of measurement in chain surveying, does not depend upon |
| A. | Length of the offset |
| B. | Scale of the plotting |
| C. | Importance of the features |
| D. | General layout of the chain lines |
| Answer» E. | |
| 46. |
If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to |
| A. | 0° |
| B. | 90° |
| C. | 180° |
| D. | 360° |
| Answer» E. | |
| 47. |
The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only |
| A. | 1 cm |
| B. | 5 cm |
| C. | 10 cm |
| D. | 100 cm |
| Answer» D. 100 cm | |
| 48. |
The direction of steepest slope on a contour, is |
| A. | Along the contour |
| B. | At an angle of 45° to the contour |
| C. | At right angles to the contour |
| D. | None of these |
| Answer» D. None of these | |
| 49. |
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. | |
| 50. |
If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to |
| A. | 1/10,000 |
| B. | 1/15,000 |
| C. | 1/20,000 |
| D. | 1/25,000 |
| Answer» D. 1/25,000 | |