MCQOPTIONS
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MCQOPTIONS
This section includes 492 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 lens equation is applicable |
| A. | when the thickness of the lens is small |
| B. | only to conjugate distances along the principal axis |
| C. | the computed quantities are accurate enough for geometrical optics of simple distances |
| D. | all the above. |
| Answer» E. | |
| 2. |
The bearing of line is 152° 30' and angle measured clockwise is 124° 28'. The bearing of is |
| A. | 27° 52' |
| B. | 96° 58' |
| C. | 148° 08' |
| D. | 186° 58' |
| Answer» C. 148° 08' | |
| 3. |
is a regular parallelogram plot of land whose angle is 60°. If the bearing of the line is 30°, the bearing of , is |
| A. | 90° |
| B. | 120° |
| C. | 210° |
| D. | 270° |
| Answer» D. 270° | |
| 4. |
If is the difference in level between end points separated by , then the slope correction is . The second term may be neglected if the value of in a 20 m distance is less than |
| A. | m |
| B. | 1 m |
| C. | 2 m |
| D. | 3 m |
| Answer» E. | |
| 5. |
If a 30 m chain diverges through a perpendicular distance from its correct alignment, the error in length, is |
| A. | . |
| Answer» B. | |
| 6. |
If arithmetic sum of latitudes of a closed traverse is ∑ and closing error in latitude is , the correction for a side whose latitude is , as given by Transit Rule, is |
| A. | none of these. |
| Answer» B. | |
| 7. |
If the radius of a simple curve is , the length of the chord for calculating offsets by the method of chords produced, should not exceed. |
| A. | /10 |
| B. | /15 |
| C. | /20 |
| D. | /25. |
| Answer» D. /25. | |
| 8. |
The bearings of the lines and are 146° 30' and 68° 30'. The included angle is |
| A. | 102° |
| B. | 78° |
| C. | 45° |
| D. | none of these. |
| Answer» B. 78° | |
| 9. |
If is the perimeter of a closed traverse, Δ is the closing error in departure, the correction for the departure of a traverse side of length , according to Bowditch rule, is |
| A. | . |
| Answer» E. | |
| 10. |
Keeping the instrument height as 1 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 | |
| 11. |
A dumpy level is set up with its eye-piece vertically over a peg . The height from the top of peg to the centre of the eye-piece is 1.540 m and the reading on peg is 0.705 m. The level is then setup over . The height of the eye-piece above peg is 1.490 m and a reading on is 2.195 m. The difference in level between and is |
| A. | 2.900 m |
| B. | 3.030 m |
| C. | 0.770 m |
| D. | 0.785 m |
| E. | 1.770 m. |
| Answer» D. 0.785 m | |
| 12. |
A tape of length and weight kg/m is suspended at its ends with a pull of kg, the sag correction is |
| A. | . |
| Answer» B. | |
| 13. |
If the rate of gain of radial acceleration is 0.3 m per sec and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is |
| A. | 2.828 |
| B. | 3.828 |
| C. | 1.828 |
| D. | 0.828. |
| Answer» B. 3.828 | |
| 14. |
If the sight distance () is equal to the length of the vertical-curve (2) joining two grades % and - %, the height of the apex will be |
| A. | none of these. |
| Answer» C. | |
| 15. |
It θ is the probable error of an observed bearing of a line of length , the error over the whole length of the traverse of lines of length is |
| A. | |
| B. | |
| C. | θ |
| D. | θ |
| Answer» B. | |
| 16. |
The formula for the horizontal distances for inclined sights, on staff held normalis cos θ + ( + ) cos θ ± sin θ |
| A. | minus sign is used for angle of depression |
| B. | plus sign is used for angle of depression |
| C. | minus sign is used for angle of elevation |
| D. | non of these. |
| Answer» B. plus sign is used for angle of depression | |
| 17. |
While measuring a chain line between two stations and intervened by a raised ground |
| A. | vision gets obstructed |
| B. | chaining gets obstructed |
| C. | both vision and chaining get obstructed |
| D. | all the above. |
| Answer» B. chaining gets obstructed | |
| 18. |
A dumpy level was set up at the midpoint between two pegs and , 50 m apart and the staff readings at and were 1.22 and 1.06. With the level set up a , the readings at and were 1.55 and 1.37. The collimation error per 100 m length of sight is |
| A. | 0.02 m inclined upwards |
| B. | 0.04 m inclined downwards |
| C. | 0.04 m inclined upward |
| D. | none of these. |
| Answer» C. 0.04 m inclined upward | |
| 19. |
Two hill tops and 20 km apart are intervened by a third top . If the top most contour of the three hill tops are of the same value, state whether the line of sight |
| A. | passes clear of hill top |
| B. | passes below the hill top |
| C. | grazes the hill top |
| D. | none of these. |
| Answer» C. grazes the hill top | |
| 20. |
If Δ is the angle of deflection of the curve, and are its points of tangencies, the angle between the tangent at and long chord will be |
| A. | Δ |
| B. | 2 Δ. |
| Answer» D. | |
| 21. |
A lens or combination of lenses in which the following defect is completely eliminated is called |
| A. | spherical aberration |
| B. | chromatic aberration |
| C. | coma |
| D. | astigmatism. |
| Answer» B. chromatic aberration | |
| 22. |
A level when set up 25 m from peg and 50 m from peg reads 2.847 on a staff held on and 3.462 on a staff held on , keeping bubble at its centre while reading. If the reduced levels of and are 283.665 m and 284.295 m respectively, the collimation error per 100 m is |
| A. | 0.015 m |
| B. | 0.030 m |
| C. | 0.045 m |
| D. | 0.060 m |
| Answer» E. | |
| 23. |
The bearing of lines and are 16° 10' and 332° 18', the value of the included angle is |
| A. | 316° 10' |
| B. | 158° 28' |
| C. | 348° 08' |
| D. | 43° 52' |
| Answer» E. | |
| 24. |
In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per 30 metre tape duly corrected for temperature, slope and sag, the angular error of closure not to exceed (where is the number of traverse legs) |
| A. | 50" |
| B. | 30" |
| C. | 60" |
| D. | . |
| Answer» B. 30" | |
| 25. |
Staff readings on pegs and from station are 1.755 m and 2.850 m, and from station on staff head at and are 0.655 m and 1.560 m. If reduced level of is 105.5 m, the reduced level of is |
| A. | 104.0 m |
| B. | 104.5 m |
| C. | 105.0 m |
| D. | 105.5 m |
| Answer» C. 105.0 m | |
| 26. |
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. | . |
| Answer» B. | |
| 27. |
If Δ is the angle of deflection of a simple curve of radius , the distance between the mid-point of the curve and long chord, is |
| A. | . |
| Answer» E. | |
| 28. |
If is the degree of the curve of radius , the exact length of its specified chord, is |
| A. | radius of the curve x sine of half the degree |
| B. | diameter of the curve x sine of half the degree |
| C. | diameter of the curve x cosine of half the degree |
| D. | diameter of the curve x tangent of half the degree. |
| Answer» C. diameter of the curve x cosine of half the degree | |
| 29. |
Let angular value of one graduation of a tube of length be φ seconds and be the radius of its internal curved surface, then |
| A. | . |
| Answer» B. | |
| 30. |
If is the specified length of a tape, its actual length and the measured distance, then, the true distance is given by the formula, |
| A. | . |
| Answer» B. | |
| 31. |
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 | |
| 32. |
The conventional sign shown in below figure represents a |
| A. | road bridge |
| B. | railway bridge |
| C. | canal bridge |
| D. | aquaduct. |
| Answer» B. railway bridge | |
| 33. |
Accidental or compensating errors of length are proportional to |
| A. | 1/ |
| B. | . |
| Answer» C. | |
| 34. |
Pick up the wrong statement from the following : |
| A. | the diaphragm is placed between the eyepiece and the objective but nearer to the former |
| B. | the diaphragm is placed between the eyepiece and the objective but nearer to the later |
| C. | the outer component of the objective is a double-convex lens of crown glass |
| D. | the inner component of the objective is a flint glass, convexo-concave |
| E. | all the above. |
| Answer» C. the outer component of the objective is a double-convex lens of crown glass | |
| 35. |
The operation of resection involves the following steps The correct sequence is |
| A. | 1, 3, 2, 4, 5 |
| B. | 1, 2, 3, 4, 5 |
| C. | 1, 4, 3, 2, 5 |
| D. | 1, 4, 2, 3, 5 |
| Answer» B. 1, 2, 3, 4, 5 | |
| 36. |
Correction per chain length of 100 links along a slope having a rise of 1 unit in horizontal units, is |
| A. | 100 |
| B. | . |
| Answer» B. . | |
| 37. |
If α and β be the elevations of two objects and respectively, θ be the angle observed by a sextant. The correct horizontal angle is |
| A. | none of these. |
| Answer» B. | |
| 38. |
is the conventional sign of |
| A. | temple |
| B. | mosque |
| C. | idgah |
| D. | church |
| E. | fort. |
| Answer» B. mosque | |
| 39. |
is a conventional sign of |
| A. | mosque |
| B. | temple |
| C. | church |
| D. | idgah. |
| Answer» E. | |
| 40. |
The distances and are measured from two fixed points and whose distance is known. The point is plotted by intersection. This method is generally adopted in |
| A. | chain surveying |
| B. | traverse method of surveys |
| C. | triangulation |
| D. | none of these. |
| Answer» B. traverse method of surveys | |
| 41. |
If Δ is the angle of deflection of a simple curve of radius , the length of the curve is : |
| A. | . |
| Answer» C. | |
| 42. |
A dumpy level was set up at mid-point between pegs and , 80 m apart and the staff readings were 1.32 and 1.56. When the level was set up at a point 10 m from on produced, the staff readings obtained at and were 1.11 and 1.39. The correct staff reading from this set up at should be |
| A. | 1.435 |
| B. | 1.345 |
| C. | 1.425 |
| D. | none of these. |
| Answer» C. 1.425 | |
| 43. |
If the long chord and tangent length of a circular curve of radius are equal the angle of deflection, is |
| A. | 30° |
| B. | 60° |
| C. | 90° |
| D. | 120° |
| E. | 150°. |
| Answer» E. 150°. | |
| 44. |
To orient a plane table at a point roughly south of the mid-point of two inaccessible conical hill stations and in the plains, a point is selected in line with and table is oriented at by bringing in line with . ray is then drawn towards and at 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. | |
| 45. |
With usual notations, the expression represents |
| A. | centrifugal force |
| B. | centrifugal ratio |
| C. | super elevation |
| D. | radial acceleration. |
| Answer» C. super elevation | |
| 46. |
The distance between the point of intersection of an up grade + % and downgrade % and the highest point of the vertical curve of length , is |
| A. | . |
| Answer» E. | |
| 47. |
is a rectangular plot of land. If the bearing of the side is 75°, the bearing of is |
| A. | 75° |
| B. | 255° |
| C. | 105° |
| D. | 285° |
| Answer» B. 255° | |
| 48. |
The bearings of two traverse legs and are N52° 45' E and N34° 30' E respectively. The deflection angle is |
| A. | 18° 15' E |
| B. | 18° 15' N |
| C. | 18° 15' W |
| D. | 18° 15' R |
| E. | 18° 15' L |
| Answer» F. | |
| 49. |
A standard steel tape of length 30 m and cross-section 15 x 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 x 10 kg/cm, the correction to be applied is |
| A. | - 0.000909 m |
| B. | + 0.0909 m |
| C. | 0.000909 m |
| D. | none of these |
| Answer» B. + 0.0909 m | |
| 50. |
The bearing of is 190° and that of is 260° 30'. The included angle , is |
| A. | 80° 30' |
| B. | 99° 30' |
| C. | 70° 30' |
| D. | none of these |
| Answer» D. none of these | |