> > Civil Engineering MCQs > Tunnelling MCQs

Tunnelling MCQ

1. Which one of the following statements is not correct in respect of setting of an inclined tunnel:

Reference points are constructed at every 300 m.

Reference points are constructed on the roof of tunnels

The level of the invert at the heading is marked by a tape.

None the above.

The alignment is fixed from upper/lower apex point.

Answer

Correct Answer: None the above.

Note: This Question is unanswered, help us to find answer for this one

2. Which one of the following methods is generally adopted for tunnelling in firm ground

Full face method

All these

Top heading and benching method

Drift method

Answer

Correct Answer: Full face method

Note: This Question is unanswered, help us to find answer for this one

3. Pick up the correct statement regarding drilling a tunnel from the following:

All of these

Holes are drilled by pneumatically operated rock drills

The diameter of the bore hole at the deepest point should be 6 mm more than the diameter of the cartridge

One drill is required for each 4 to 5 m2 force area

Answer

Correct Answer: All of these

Note: This Question is unanswered, help us to find answer for this one

4. In the wooded bulk-head, used for mucking in steep grade tunnels,

No opening is provided.

Two openings are provided

Three openings are provided

One opening is provided

Answer

Correct Answer: Two openings are provided

Note: This Question is unanswered, help us to find answer for this one

5. The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than

250 particles/cm3

450 particles/cm3

200 particles/cm3

400 particles/cm3

300 particles/cm3

Answer

Correct Answer: 450 particles/cm3

Note: This Question is unanswered, help us to find answer for this one

6. For B.G. single track railway, the height of the tunnel above top of rails should be

6.7 m to 7.3 m

5.8 m to 6.2 m

5.5 m to 5.8 m

7.3 m to 7.5 m

Answer

Correct Answer: 6.7 m to 7.3 m

Note: This Question is unanswered, help us to find answer for this one

7. For B.G. single track, the section of the tunnel must have a width

4.2 m to 4.5 m

4.9 m to 5.5 m

4.5 m to 4.8 m

5.5 m to 5.8 m

Answer

Correct Answer: 4.9 m to 5.5 m

Note: This Question is unanswered, help us to find answer for this one

8. To attain the required shape of the tunnel section, we use:

Easers

Trimmers

Chisels.

Cut holes

Answer

Correct Answer: Trimmers

Note: This Question is unanswered, help us to find answer for this one

9. For full face method, the excavation to be done is generally divided into

Two sections

Five sections.

Four sections

Three sections

Answer

Correct Answer: Three sections

Note: This Question is unanswered, help us to find answer for this one

10. Which one of the following statements is not correct with regard to heading and hench-ing method of tunnelling.

The holes in head and bench are loaded together with explosive for blasting.

Driving of tunnel is done in two portions of its section

After driving the top portion 3 m to 3.5 m holes are drilled into the head and bench.

Driving the top portion is done in advance of the bottom portion.

Firing of head holes is done just before the bench holes are fired.

Answer

Correct Answer: Firing of head holes is done just before the bench holes are fired.

Note: This Question is unanswered, help us to find answer for this one

11. Railway tunnels, are generally

Circular

None of these.

Polycentric

Rectangular

Parabolic

Answer

Correct Answer: Polycentric

Note: This Question is unanswered, help us to find answer for this one

12. Which one of the following methods of tunnelling does not require the use of time bearing:

Shield method

Compressed air method

Mechanical tunneler i.e. mole method

All the these.

Linear plate method

Answer

Correct Answer: All the these.

Note: This Question is unanswered, help us to find answer for this one

13.
The following operations are required for tunnelling in rocky terrain:
1. Removing the foul gases
2. Marking the tunnel profile
3. Setting up and drilling
4. Checking misfire
5. Mucking The correct sequence is:

1 2 3 4 5

2 3 1 4 5

2 3 5 4 1

4 2 1 3 5

Answer

Correct Answer:

2 3 1 4 5

Note: This Question is unanswered, help us to find answer for this one

14.
The following operations are generally employed for tunnelling in hard rock.
1. Removing ground water,
2. Loading holes and firing the explosive
3. Setting up and drilling
4. Grouting and lining
5. Removing muck
6. Ventilation and removing explosion dust
The correct sequence is:

5 4 2 1 3 6

3 4 6 1 5 2

4 1 2 3 6 5

3 2 6 5 1 4

Answer

Correct Answer:

3 2 6 5 1 4

Note: This Question is unanswered, help us to find answer for this one

15. In case of railways,

Tunnelling is preferred

All these

A detour round the hill is preferred

A open cut is preferred

Answer

Correct Answer: Tunnelling is preferred

Note: This Question is unanswered, help us to find answer for this one

16. Which one of the following linings is suitable for shield driven tunnels particularly in the subaqueous regions:

Timber line

Concrete lining.

Stone lining

Brick lining

Cast iron lining

Answer

Correct Answer: Cast iron lining

Note: This Question is unanswered, help us to find answer for this one

17. Pick up the correct statement from the following during tunnel excavation,

Hydrogen sulphide should not be more than 0.001%

Carbon mono-oxide should not be more than 0.01%

Oxygen should not be less than 19.5%

Carbondioxide should not be more than 0.5%

All of these

Answer

Correct Answer: All of these

Note: This Question is unanswered, help us to find answer for this one

18. Pick up the mechanical ventilation method used for tunnels from the following:

All these

Blowing fresh air and exhausting foul air by ducts

Blowing fresh air by ducts to the face of tunnel

Exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel

Answer

Correct Answer: Blowing fresh air by ducts to the face of tunnel

Note: This Question is unanswered, help us to find answer for this one

19. The tunnels, the artificial underground passages are constructed for:

Sewerage

Water supply project

All these

Highways

Railways

Answer

Correct Answer: All these

Note: This Question is unanswered, help us to find answer for this one

20. The length of the needle beam used in needle beam method of tunnelling is usually

2.5 m to 6 m

5 m to 6 m

4 m to 7 m

2 m to 4 m

Answer

Correct Answer: 5 m to 6 m

Note: This Question is unanswered, help us to find answer for this one

Civil Engineering MCQs | Topic-wise

MCQ on Construction Management	MCQ on Design of Steel Structures
MCQ on Elements of Remote Sensing	MCQ on Estimation and Costing
MCQ on Highway Engineering	MCQ on Hydraulics
MCQ on RCC Structures Design	MCQ on Railway Engineering
MCQ on Surveying	MCQ on Water Supply Engineering
General Civil Engineering MCQs

Tunnelling MCQ

1. Which one of the following statements is not correct in respect of setting of an inclined tunnel:

2. Which one of the following methods is generally adopted for tunnelling in firm ground

3. Pick up the correct statement regarding drilling a tunnel from the following:

4. In the wooded bulk-head, used for mucking in steep grade tunnels,

5. The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than

6. For B.G. single track railway, the height of the tunnel above top of rails should be

7. For B.G. single track, the section of the tunnel must have a width

8. To attain the required shape of the tunnel section, we use:

9. For full face method, the excavation to be done is generally divided into

10. Which one of the following statements is not correct with regard to heading and hench-ing method of tunnelling.

11. Railway tunnels, are generally

12. Which one of the following methods of tunnelling does not require the use of time bearing:

13. 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. Mucking The correct sequence is:

14. 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:

15. In case of railways,

16. Which one of the following linings is suitable for shield driven tunnels particularly in the subaqueous regions:

17. Pick up the correct statement from the following during tunnel excavation,

18. Pick up the mechanical ventilation method used for tunnels from the following:

19. The tunnels, the artificial underground passages are constructed for:

20. The length of the needle beam used in needle beam method of tunnelling is usually

13.
The following operations are required for tunnelling in rocky terrain:
1. Removing the foul gases
2. Marking the tunnel profile
3. Setting up and drilling
4. Checking misfire
5. Mucking The correct sequence is:

14.
The following operations are generally employed for tunnelling in hard rock.
1. Removing ground water,
2. Loading holes and firing the explosive
3. Setting up and drilling
4. Grouting and lining
5. Removing muck
6. Ventilation and removing explosion dust
The correct sequence is: