MCQOPTIONS
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MCQOPTIONS
This section includes 57 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 following tunnels were constructed in different countries for different purposes : 1. Emperor Claudius built the first Roman tunnel2. The first highway tunnel was constructed in Hungary3. The first underground railway tunnel was constructed in Great Britain4. The first navigational tunnel was constructed in France.The correct chronological development of these tunnels is: |
| A. | 4 1 3 2 |
| B. | 1 4 2 3 |
| C. | 2 3 1 4 |
| D. | 3 2 4 1 |
| Answer» C. 2 3 1 4 | |
| 2. |
For initial surveys of tunnels, the following activities are involved:1. Marking portal point with concrete pillars on the ground2. Marking tunnel obligatory points on the topographical maps3. Preliminary setting of the tunnel on the topographical Survey of India maps3. Driving lines between the fixed obligatory points.The correct sequence of the activities is : |
| A. | 3 2 4 1 |
| B. | 1 2 3 4 |
| C. | 4 3 1 2 |
| D. | 2 4 3 1 |
| Answer» B. 1 2 3 4 | |
| 3. |
For transferring the tunnel alignment through shafts, we adopt the following steps :1. Hanging two or more plumb lines in the shaft2. Determining the bearing of the plumb lines i.e. plumb plane3. Suspending a 35 kg weight by each plumb line4. Immersing the weights of both the plumb lines in the buckets containing water.The correct sequence of steps is : |
| A. | 1 2 3 4 |
| B. | 4 3 2 1 |
| C. | l 3 2 4 |
| D. | 2 1 4 3 |
| Answer» B. 4 3 2 1 | |
| 4. |
The following operations are required for tunnelling in rocky terrain :1. Removing the foul gases2. Marking the tunnel profile3. Setting up and drilling4. Checking misfire5. MuckingThe correct sequence is : |
| A. | 1 2 3 4 5 |
| B. | 2 3 5 4 1 |
| C. | 4 2 1 3 5 |
| D. | 2 3 1 4 5 |
| Answer» E. | |
| 5. |
The following operations are generally employed for tunnelling in hard rock. 1. Removing ground water, 2. Loading holes and firing the explosive3. Setting up and drilling4. Grouting and lining5. Removing muck6. Ventilation and removing explosion dustThe correct sequence is : |
| A. | 3 2 6 5 1 4 |
| B. | 3 4 6 1 5 2 |
| C. | 4 1 2 3 6 5 |
| D. | 5 4 2 1 3 6 |
| Answer» B. 3 4 6 1 5 2 | |
| 6. |
Which of the following involves in the sequence of rocky strata? |
| A. | Marking profile |
| B. | Placing rocks |
| C. | Improving foul gases |
| D. | Recording values |
| Answer» B. Placing rocks | |
| 7. |
Which of the following can act as an alternative for blasting? |
| A. | Tunneling |
| B. | Continuous blasting |
| C. | Sequential blasting |
| D. | Fire-setting |
| Answer» E. | |
| 8. |
Which method can be adopted in case of rock tunneling? |
| A. | Full face method |
| B. | Benching |
| C. | Tracing |
| D. | Back bearing method |
| Answer» B. Benching | |
| 9. |
A steel cylinder which is pushed in the soft soil is determined as ________ |
| A. | Jar born |
| B. | Shield |
| C. | Rod |
| D. | Pole |
| Answer» C. Rod | |
| 10. |
Among the following, which can be adopted for providing support for soft strata? |
| A. | Bents of aluminum |
| B. | Bents of iridium |
| C. | Bents of steel |
| D. | Bents of plastic |
| Answer» D. Bents of plastic | |
| 11. |
Which method can be adopted if full face excavation is not possible? |
| A. | Back bearing method |
| B. | Plotting |
| C. | Trenching |
| D. | Benching |
| Answer» E. | |
| 12. |
Among the following, which doesn’t belong to tunnel classification? |
| A. | Firm ground |
| B. | Running ground |
| C. | Rocky ground |
| D. | Soft ground |
| Answer» D. Soft ground | |
| 13. |
Which of the following should be considered while aligning a tunnel? |
| A. | Atmospheric conditions |
| B. | Hydrological conditions |
| C. | Climatic conditions |
| D. | Surface limits |
| Answer» C. Climatic conditions | |
| 14. |
The line at which the tunnel wall breaks from sloping outward can be given as _________ |
| A. | Spring line |
| B. | Oval line |
| C. | Centre line |
| D. | Middle line |
| Answer» B. Oval line | |
| 15. |
Tunneling is required in case of ____________ |
| A. | Laying pavement |
| B. | Laying road |
| C. | On ground passage |
| D. | Underground passage |
| Answer» E. | |
| 16. |
The following operations are generally employed for tunnelling in hard rock. 1. Removing ground water, 2. Loading holes and firing the explosive3. Setting up and drilling4. Grouting and lining5. Removing muck6. Ventilation and removing explosion dustThe correct sequence is : |
| A. | 2 3 1 4 |
| B. | 3 2 4 1 |
| C. | 3 2 6 5 1 4 |
| D. | 3 4 6 1 5 2 |
| Answer» B. 3 2 4 1 | |
| 17. |
Pick up the correct statement from the following during tunnel excavation, |
| A. | Oxygen should not be less than 19.5% |
| B. | Carbondioxide should not be more than 0.5% |
| C. | Hydrogen sulphide should not be more than 0.001% |
| D. | Carbon mono-oxide should not be more than 0.01% |
| Answer» E. | |
| 18. |
In case of railways, |
| A. | cast iron lining |
| B. | concrete lining. |
| C. | a detour round the hill is preferred |
| D. | a open cut is preferred |
| Answer» D. a open cut is preferred | |
| 19. |
An overhead track on a large truss frame is required in case of car changer by |
| A. | the grass hopper method |
| B. | the passing track method |
| C. | California crossing method |
| D. | Dixon conveyor method. |
| Answer» B. the passing track method | |
| 20. |
For B.G. single track, the section of the tunnel must have a width |
| A. | 4.2 m to 4.5 m |
| B. | 4.5 m to 4.8 m |
| C. | 4.9 m to 5.5 m |
| D. | 5.5 m to 5.8 m |
| Answer» D. 5.5 m to 5.8 m | |
| 21. |
Which one of the following methods is adopted for permanent drainage of tunnels : |
| A. | provision of longitudinal drains |
| B. | continuous open drains |
| C. | concrete lining |
| D. | grouting with cement or chemicals |
| Answer» E. | |
| 22. |
The advantages of providing a pair of tunnels as compared to only one large highway tunnel is : |
| A. | economy in cost of construction |
| B. | avoidance of head on collisions |
| C. | provision of separate exit and entrance of two traffic streams |
| D. | facility in carrying out repairs |
| Answer» E. | |
| 23. |
For highways, tunnelling is preferred to if the open cut exceeds : |
| A. | 10 metres depth |
| B. | 15 metres depth |
| C. | 20 metres depth |
| D. | 25 metres depth. |
| Answer» C. 20 metres depth | |
| 24. |
Pick up the explosive used for tunnelling in soft rocks from the following : |
| A. | blasting gelatine |
| B. | special gelatine |
| C. | ammonia dynamite |
| D. | semi-gelatine. |
| Answer» D. semi-gelatine. | |
| 25. |
Concrete lining is provided concurrently with the driving operation in case of |
| A. | rock terrain |
| B. | soft rock |
| C. | running soil |
| D. | none of these. |
| Answer» B. soft rock | |
| 26. |
Which one of the following statements is not correct with regard to heading and hench-ing method of tunnelling. |
| A. | Driving of tunnel is done in two portions of its section |
| B. | Driving the top portion is done in advance of the bottom portion. |
| C. | After driving the top portion 3 m to 3.5 m holes are drilled into the head and bench. |
| D. | The holes in head and bench are loaded together with explosive for blasting. |
| Answer» E. | |
| 27. |
For transferring the tunnel alignment through shafts, we adopt the following steps :1. Hanging two or more plumb lines in the shaft2. Determining the bearing of the plumb lines i.e. plumb plane3. Suspending a 35 kg weight by each plumb line4. Immersing the weights of both the plumb lines in the buckets containing water.The correct sequence of steps is : |
| A. | 1 2 3 4 |
| B. | 4 3 2 1 |
| C. | l 3 2 4 |
| D. | 2 1 4 3 |
| Answer» B. 4 3 2 1 | |
| 28. |
For tunnels exceeding 300 m in length, the grade should be provided below |
| A. | 50% of the ruling gradient |
| B. | 60% of the ruling gradient |
| C. | 75% of the ruling gradient |
| D. | 80% of the ruling gradient. |
| Answer» D. 80% of the ruling gradient. | |
| 29. |
The following tunnels were constructed in different countries for different purposes : 1. Emperor Claudius built the first Roman tunnel2. The first highway tunnel was constructed in Hungary3. The first underground railway tunnel was constructed in Great Britain4. The first navigational tunnel was constructed in France.The correct chronological development of these tunnels is: |
| A. | 4 1 3 2 |
| B. | 1 4 2 3 |
| C. | 2 3 1 4 |
| D. | 3 2 4 1 |
| Answer» C. 2 3 1 4 | |
| 30. |
To attain the required shape of the tunnel section, we use : |
| A. | easers |
| B. | trimmers |
| C. | cut holes |
| D. | chisels. |
| Answer» C. cut holes | |
| 31. |
Railway tunnels, are generally |
| A. | polycentric |
| B. | rectangular |
| C. | parabolic |
| D. | circular |
| Answer» B. rectangular | |
| 32. |
In the given figure drill holes, heading, mucking and benching are mumbered as 1, 2, 3, 4 The correct sequence is : |
| A. | 4 1 2 3 |
| B. | 1 2 3 4 |
| C. | 4 1 3 2 |
| D. | 3 4 1 3 |
| Answer» D. 3 4 1 3 | |
| 33. |
For initial surveys of tunnels, the following activities are involved:1. Marking portal point with concrete pillars on the ground2. Marking tunnel obligatory points on the topographical maps3. Preliminary setting of the tunnel on the topographical Survey of India maps3. Driving lines between the fixed obligatory points.The correct sequence of the activities is : |
| A. | 3 2 4 1 |
| B. | 1 2 3 4 |
| C. | 4 3 1 2 |
| D. | 2 4 3 1 |
| Answer» B. 1 2 3 4 | |
| 34. |
Which one of the following linings is suitable for shield driven tunnels particularly in the subaqueous regions : |
| A. | Brick lining |
| B. | stone lining |
| C. | timber line |
| D. | cast iron lining |
| Answer» E. | |
| 35. |
The length of the needle beam used in needle beam method of tunnelling is usually |
| A. | 2 m to 4 m |
| B. | 2.5 m to 6 m |
| C. | 4 m to 7 m |
| D. | 5 m to 6 m |
| Answer» E. | |
| 36. |
For hauling muck from the tunnel, the following type of muck-car is used : |
| A. | muck box |
| B. | balle-ship |
| C. | side dump car |
| D. | U-bottom |
| Answer» E. | |
| 37. |
The tunnels, the artificial underground passages are constructed for : |
| A. | highways |
| B. | railways |
| C. | sewerage |
| D. | water supply project |
| Answer» E. | |
| 38. |
The cut of a tunnel face is shown in given figure. This is called |
| A. | Michigan cut |
| B. | Burn cut |
| C. | Fan cut |
| D. | Horizontal cut. |
| Answer» B. Burn cut | |
| 39. |
Forepoling method is generally adopted for tunnelling in : |
| A. | soft ground |
| B. | firm ground |
| C. | running ground |
| D. | None of these. |
| Answer» B. firm ground | |
| 40. |
For full face method, the excavation to be done is generally divided into |
| A. | two sections |
| B. | three sections |
| C. | four sections |
| D. | five sections. |
| Answer» C. four sections | |
| 41. |
The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than |
| A. | 200 particles/cm3 |
| B. | 250 particles/cm3 |
| C. | 300 particles/cm3 |
| D. | 450 particles/cm3 |
| Answer» E. | |
| 42. |
Which one of the following methods of tunnelling does not require the use of time bearing : |
| A. | Linear plate method |
| B. | Shield method |
| C. | Compressed air method |
| D. | Mechanical tunneler i.e. mole method |
| Answer» E. | |
| 43. |
The method of draining in the tunnels, is generally known as |
| A. | foredrainage |
| B. | dewatering |
| C. | permanent drainage |
| D. | All of the above. |
| Answer» E. | |
| 44. |
The following operations are required for tunnelling in rocky terrain :1. Removing the foul gases2. Marking the tunnel profile3. Setting up and drilling4. Checking misfire5. MuckingThe correct sequence is : |
| A. | 1 2 3 4 5 |
| B. | 2 3 5 4 1 |
| C. | 4 2 1 3 5 |
| D. | 2 3 1 4 5 |
| Answer» E. | |
| 45. |
Pick up the mechanical ventilation method used for tunnels from the following: |
| A. | blowing fresh air by ducts to the face of tunnel |
| B. | exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel |
| C. | blowing fresh air and exhausting foul air by ducts |
| D. | all the above. |
| Answer» E. | |
| 46. |
Which one of the following methods is generally adopted for tunnelling in firm ground |
| A. | Full face method |
| B. | Top heading and benching method |
| C. | Drift method |
| D. | All the above. |
| Answer» E. | |
| 47. |
In case of drift method of tunnelling, the drift may be excavated at |
| A. | the centre |
| B. | the bottom |
| C. | the top |
| D. | the side |
| Answer» E. | |
| 48. |
The most commonly adopted pattern of cut holes is : |
| A. | horizontal wedge cut |
| B. | pyramid cut |
| C. | fan cut |
| D. | V-cut |
| Answer» E. | |
| 49. |
In the wooded bulk-head, used for mucking in steep grade tunnels, |
| A. | one opening is provided |
| B. | two openings are provided |
| C. | three openings are provided |
| D. | no opening is provided. |
| Answer» C. three openings are provided | |
| 50. |
Pick up the correct statement regarding drilling a tunnel from the following: |
| A. | Holes are drilled by pneumatically operated rock drills |
| B. | One drill is required for each 4 to 5 m2 force area |
| C. | The diameter of the bore hole at the deepest point should be 6 mm more than the diameter of the cartridge |
| D. | All of the above. |
| Answer» E. | |