MCQOPTIONS
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MCQOPTIONS
This section includes 97 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. |
Which one of the following is a component of a shield for tunnelling ? |
| A. | liner plate |
| B. | trench jack |
| C. | stiffener |
| D. | cutting edge |
| Answer» E. | |
| 2. |
Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction? |
| A. | It is suitable for construction in unstable rocks |
| B. | In this method, it is easy to install timber support |
| C. | Tunnelling can be continuous and the work can be expedited |
| D. | In case of excessive water, it is easy to take correct steps |
| Answer» D. In case of excessive water, it is easy to take correct steps | |
| 3. |
Which one of the following tunnelling methods is used for laying under ground sewers ? |
| A. | Needle beam method |
| B. | Army method |
| C. | German method |
| D. | Italian method |
| Answer» C. German method | |
| 4. |
Which of the following methods of tunneling is used for long tunnels at great depths ? |
| A. | Army method |
| B. | Needle beam method |
| C. | Austrian method |
| D. | English method |
| Answer» D. English method | |
| 5. |
Which of the following lining material is useful for shield driven tunnels in sub aqueous regions ? |
| A. | stone masonry |
| B. | timber |
| C. | cast iron |
| D. | cement concrete |
| Answer» D. cement concrete | |
| 6. |
Which of the following is not a component of the shield ? |
| A. | propelling jacks |
| B. | liner plate |
| C. | hood |
| D. | tail |
| Answer» C. hood | |
| 7. |
Which of the following are percussion drills ?_x005F_x000D_(i) shot drill_x005F_x000D_(ii) diamond drill_x005F_x000D_(iii) wagon drill_x005F_x000D_(iv) churn drill_x005F_x000D_select correct answer? |
| A. | (i) and (ii) are correct |
| B. | (iii) and (iv) are correct |
| C. | (i) and (iv) are correct |
| D. | (ii) and (iii) are correct |
| Answer» C. (i) and (iv) are correct | |
| 8. |
What is the correct sequence of the following events of construction of a shaft in rock ?_x005F_x000D_1. drilling and blasting_x005F_x000D_2. timbering_x005F_x000D_3. pumping_x005F_x000D_4. mucking_x005F_x000D_Select the correct answer using the codes given below Codes? |
| A. | 1,2,3,4 |
| B. | 1,4,2,3 |
| C. | 2,1,4,3 |
| D. | 2,4,1,3 |
| Answer» C. 2,1,4,3 | |
| 9. |
What is the correct sequence of the following events in rock tunnelling?_x005F_x000D_1. marking tunnel profile_x005F_x000D_2. loading explosives and blasting_x005F_x000D_3. checking misfire_x005F_x000D_4. mucking_x005F_x000D_5. removing foul gas_x005F_x000D_6. setting up and drilling_x005F_x000D_7. guniting_x005F_x000D_Select the correct answer using the codes given below Codes ? |
| A. | 1,6,5,3,4,2,7 |
| B. | 1,2,6,3,5,4,7 |
| C. | 1, 6,2, 5,4, 3, 7 |
| D. | 1,6,2,5,3,4,7 |
| Answer» E. | |
| 10. |
The needle beam method of tunneling______________?_x005F_x000D_(i) is suitable for soils in which roof can stand for few minutes without support_x005F_x000D_(ii) is suitable for brick lining_x005F_x000D_(iii) is suitable for concrete lining_x005F_x000D_(iv) requires large number of trench jacks_x005F_x000D_select the answer? |
| A. | only (i) is correct |
| B. | (i), (ii) and (iv) are correct |
| C. | (i), (iii) and (iv) are correct |
| D. | (i) and (ii) are correct |
| Answer» C. (i), (iii) and (iv) are correct | |
| 11. |
The most suitable soil for compressed air tunneling is________________? |
| A. | silt |
| B. | sand |
| C. | clay |
| D. | gravel |
| Answer» D. gravel | |
| 12. |
The correct sequence of drilling equipment for increasing size of holes in tunnels is________________? |
| A. | wagon drill, churn drill, shot drill |
| B. | wagon drill, shot drill, churn drill |
| C. | shot drill, churn drill, wagon drill |
| D. | churn drill, wagon drill, shot drill |
| Answer» B. wagon drill, shot drill, churn drill | |
| 13. |
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than_____________________? |
| A. | 2 m |
| B. | 3 m |
| C. | 4 m |
| D. | 5 m |
| Answer» C. 4 m | |
| 14. |
In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at________________?_x005F_x000D_Consider the following situations_x005F_x000D_1. Soil is soft_x005F_x000D_2. Volume of existing surface traffic on the alignment is heavy_x005F_x000D_3. Track is at a deeper level_x005F_x000D_4. Water table is high |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 1 and 4 |
| D. | 2 and 3 |
| Answer» D. 2 and 3 | |
| 15. |
In compressed air tunneling, the volume of free air provided is______________? |
| A. | 6 mJ per second per m2 of face area |
| B. | 6 m3 per minute per m2 of face area |
| C. | 20 m3 per minute per m2 of face area |
| D. | 6 m3 per hour per m2 of face area |
| Answer» C. 20 m3 per minute per m2 of face area | |
| 16. |
In Belgium method of tunneling _________________? |
| A. | construction of side walls is completed before invert and roof arch are built |
| B. | construction of roof arch is completed before side walls and invert are built |
| C. | construction of invert is completed before side walls and roof arch are built |
| D. | construction of invert and side walls is completed before roof arch is built |
| Answer» C. construction of invert is completed before side walls and roof arch are built | |
| 17. |
If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________? |
| A. | 2N |
| B. | N + 2 |
| C. | 2 N + 1 |
| D. | 2 N + 2 |
| Answer» E. | |
| 18. |
If ‘D’ is the diameter of tunnel in meters, then the thickness of lining in mm, as per the empirical formula is given by_________________? |
| A. | 42 D |
| B. | 82 D |
| C. | 104 D |
| D. | 124 D |
| Answer» C. 104 D | |
| 19. |
Drifters can be used to drill_________________? |
| A. | only up holes |
| B. | only down holes |
| C. | horizontal or up holes |
| D. | horizor„al, down or up holes |
| Answer» E. | |
| 20. |
Drift method of tunnelling is used to construct tunnels in__________________? |
| A. | soft grounds |
| B. | rock |
| C. | self supporting grounds |
| D. | broken grounds |
| Answer» C. self supporting grounds | |
| 21. |
Circular section of tunnels is not suitable for________________? |
| A. | carrying water |
| B. | non-cohesive soils |
| C. | tunnels driven by shield method |
| D. | placement of concrete lining |
| Answer» E. | |
| 22. |
Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________________? |
| A. | Both A and R are true and R is the correct explanation of A |
| B. | Both A and R are true but R is not the correct explanation of A |
| C. | A is true but R is false |
| D. | A is false but R is true |
| Answer» D. A is false but R is true | |
| 23. |
Assertion A : English method of tunneling requires more time as compared to other methods of tunneling. Reason R : In English method of tunneling, the masons and excavators have to work alternately/ |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true and R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true and R is not the correct explanation of A. | |
| 24. |
As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield___________________? |
| A. | remains same |
| B. | decreases |
| C. | increases by 2.25 times |
| D. | increases by 3.5 times |
| Answer» D. increases by 3.5 times | |
| 25. |
American method of tunneling________________?_x005F_x000D_i) is suitable for large sized tunnels_x005F_x000D_ii) is no,’ suitable for railway or highway tunnel’s_x005F_x000D_iii) requires heavy timbers_x005F_x000D_select the correct answer? |
| A. | only (i) is correct |
| B. | (i) and (iii) are correct |
| C. | (ii) and (iii) are correct |
| D. | (i) and (ii) are correct |
| Answer» B. (i) and (iii) are correct | |
| 26. |
A good blast with a good yield is obtained if the cut hole is___________________? |
| A. | normal to face |
| B. | inclined at 45° to the face |
| C. | inclined at 15° to the face |
| D. | inclined at 30° to the face |
| Answer» C. inclined at 15° to the face | |
| 27. |
If a is average number of peaks more than 10 mm of unevenness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is |
| A. | Ic = 10 - a - b - c/4 |
| B. | Ic = 20 - a - b - c/4 |
| C. | Ic = 30 - a - b - c/4 |
| D. | Ic = 40 - a - b - c/4 |
| Answer» E. | |
| 28. |
Main disadvantage of steel sleepers, is: |
| A. | It gets rusted quickly |
| B. | Its lugs sometimes get broken |
| C. | Its lugs sometimes get split |
| D. | All the above |
| Answer» E. | |
| 29. |
For a 8° curve track diverging from a main curve of 5° in an opposite direction in the layout of a broad gauge yard, the cant to be provided for the branch track for maximum speed of 45 km/h on the main line and 'G' = 1.676 m is (Permitted cant deficiency for the main line = 7.6 cm) |
| A. | 0.168 cm |
| B. | -0.168 cm |
| C. | 7.432 cm |
| D. | 7.768 cm |
| Answer» C. 7.432 cm | |
| 30. |
If G is gauge is metres, V is speed of trains in km/hour and R is radius of a curve in metres, the equilibrium super elevation is |
| A. | GV²/R |
| B. | GV²/17R |
| C. | GV²/127R |
| D. | GV²/130R |
| Answer» D. GV²/130R | |
| 31. |
angle and R is radius of the turnout, the length of the tongue rail, is |
| A. | R |
| B. | R |
| C. | /2 |
| D. | /2 |
| Answer» E. | |
| 32. |
Number of cotters used in CST-9 sleepers is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 33. |
Consider the following statements:Automatic signalling system results in 1. Greater risk 2. Higher efficiency 3. Avoidance of block instruments 4. Higher operating cost Of these statements |
| A. | 1 and 2 are correct |
| B. | 3 and 4 are correct |
| C. | 1 and 4 are correct |
| D. | 2 and 3 are correct |
| Answer» E. | |
| 34. |
Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal? |
| A. | Detectors |
| B. | Point lock |
| C. | Iock bar |
| D. | Stretcher bar |
| Answer» D. Stretcher bar | |
| 35. |
If D is the distance between parallel tracks G between theoretical noses of two crossings measured parallel to tracks, is |
| A. | (D - G - G ) |
| B. | (D - G + G ) |
| C. | (D - G - G ) |
| D. | (D + G + G ) |
| Answer» B. (D - G + G ) | |
| 36. |
Study the following statements regarding creep. (i) Creep is greater on curves than on tangent railway track, (ii) Creep in new rails is more than that in old rails, (iii) Creep is more on steep gradients than on level track. The correct answer is |
| A. | Only (i) |
| B. | (i) and (ii) |
| C. | (ii) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» C. (ii) and (iii) | |
| 37. |
The formation width for a double line Broad Gauge track in cutting (excluding drains) asadopted on Indian Railways is |
| A. | 6.10 m |
| B. | 8.84 m |
| C. | 10.21 m |
| D. | 10.82 m |
| Answer» D. 10.82 m | |
| 38. |
The gradient on which an additional engine is required to negotiate the gradient, is called |
| A. | Momentum gradient |
| B. | Pusher gradient |
| C. | Ruling gradient |
| D. | Steep gradient |
| Answer» C. Ruling gradient | |
| 39. |
Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 ×13 cm with 75 cm sleeper spacing is |
| A. | 15 cm |
| B. | 20 cm |
| C. | 25 cm |
| D. | 30 cm |
| Answer» D. 30 cm | |
| 40. |
Due to battering action of wheels over the end of the rails, the rails get bent down andare deflected at ends. These rails are called |
| A. | Roaring rails |
| B. | Hogged rails |
| C. | Corrugated rails |
| D. | Buckled rails |
| Answer» C. Corrugated rails | |
| 41. |
Switch angle depends on (i) Heel divergence (ii) Length of tongue rail (iii) Flange-way clearance (iv) Throw of switch The correct answer is |
| A. | (i) and (ii) |
| B. | (ii) and (iii) |
| C. | (iii) and (iv) |
| D. | (i) and (iv) |
| Answer» B. (ii) and (iii) | |
| 42. |
The type of bearing plate used in all joints and on curves to give better bearing area tothe rails is |
| A. | Flat mild steel bearing plate |
| B. | Mild steel canted bearing plate |
| C. | Cast iron anti-creep bearing plate |
| D. | None of the above |
| Answer» C. Cast iron anti-creep bearing plate | |
| 43. |
Number of switches provided on a Gaunt-letted track is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | None of the above |
| Answer» E. | |
| 44. |
Which of the following turnouts is most commonly used for goods train on IndianRailways? |
| A. | 1 in 8'/2 |
| B. | 1 in 12 |
| C. | 1 in 16 |
| D. | 1 in 20 |
| Answer» B. 1 in 12 | |
| 45. |
For the purpose of track maintenance, the number of turn out equivalent to one track km is |
| A. | 1 |
| B. | 2 |
| C. | 5 |
| D. | 10 |
| Answer» E. | |
| 46. |
Anti-creep bearing plates are provided on |
| A. | Bridges and approaches |
| B. | Joints |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» E. | |
| 47. |
In a diamond crossing, numbers of noses are |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 48. |
On a Single Rail Track,goods trains loadedwith heavy load material run starting from ‘A’to ‘B’ and then empty wagon run from ‘B’ to ‘A’.The amount of creep in the rails: |
| A. | Will be more in the direction of B to A |
| B. | Will be more in the direction of A to B |
| C. | Will be maximum at the middle of A and B |
| D. | Cannot be determined from the given data |
| Answer» C. Will be maximum at the middle of A and B | |
| 49. |
Which of the following factors govern the choice of the gauge? (i) Volume and nature of traffic (ii) Speed of train (iii) Physical features of the country The correct answer is |
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (ii) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 50. |
The standard width of ballast for B.G. Track in Indian Railways, is kept |
| A. | 3.35 m |
| B. | 3.53 m |
| C. | 2.35 m |
| D. | 2.53 m |
| Answer» B. 3.53 m | |