Which one of the following statements is not correct for heading and benching method of tunnelling ?

Drilling and mucking can be done simultaneously

Benching provides a plateform for working on heading

Removal of muck from the heading is very easy

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

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

blowing fresh air and exhausting foul air by ducts

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.

The alignment is fixed from upper/lower apex point.

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

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

Holes are drilled by pneumatically operated rock drills

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

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

a detour round the hill is preferred

Which one of the following methods is adopted for permanent drainage of tunnels :

provision of longitudinal drains

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

Top heading and benching method

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

Oxygen should not be less than 19.5%

Carbondioxide should not be more than 0.5%

Hydrogen sulphide should not be more than 0.001%

The advantages of providing a pair of tunnels as compared to only one large highway tunnel is :

economy in cost of construction

avoidance of head on collisions

provision of separate exit and entrance of two traffic streams

A tunnel is found more advantageous as compared to the alternate routes because it:

reduces the cost by reducing the route distance

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

Driving of tunnel is done in two portions of its section

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

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

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

48 + Mcqs in Tunnelling in Surveying Page 1 McqOptions

1.	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.

Discussion

2.	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

Discussion

3.	The difference of heights of the tunnels above rail tops of BG and MG tracks is kept
A.	0.30 m
B.	0.45 m
C.	0.60 m
D.	0.75 m
Answer» D. 0.75 m

Discussion

4.	Which one of the following statements is not correct for heading and benching method of tunnelling ?
A.	Drilling and mucking can be done simultaneously
B.	Benching provides a plateform for working on heading
C.	Removal of muck from the heading is very easy
D.	None of these.
Answer» D. None of these.

Discussion

5.	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.

Discussion

6.	In case of drift method of tunnelling, the drift may be excavated at
A.	the centre
B.	the bottom
C.	the top
D.	All of the above.
Answer» E.

Discussion

7.	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

Discussion

8.	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

Discussion

9.	Which one of the following statements is not correct in respect of setting of an inclined tunnel:
A.	Reference points are constructed at every 300 m.
B.	The alignment is fixed from upper/lower apex point.
C.	The level of the invert at the heading is marked by a tape.
D.	None the above.
Answer» E.

Discussion

10.	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.	All the these.
Answer» E.

Discussion

11.	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.

Discussion

12.	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.

Discussion

13.	The most commonly adopted pattern of cut holes is :
A.	horizontal wedge cut
B.	pyramid cut
C.	fan cut
D.	All the above.
Answer» E.

Discussion

14.	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

Discussion

15.	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

Discussion

16.	In case of railways,
A.	a detour round the hill is preferred
B.	a open cut is preferred
C.	tunnelling is preferred
D.	All the above.
Answer» D. All the above.

Discussion

17.	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.	All the above.
Answer» E.

Discussion

18.	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.	All of these.
Answer» E.

Discussion

19.	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

Discussion

20.	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.

Discussion

21.	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.

Discussion

22.	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.	All of the above.
Answer» E.

Discussion

23.	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.

Discussion

24.	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

Discussion

25.	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 maps4. 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

Discussion

26.	High pressure grouting is generally restored for concreting in the lining if the rock strata is:
A.	highly fissured
B.	poor
C.	likely to get seepage of water
D.	All of the above.
Answer» E.

Discussion

27.	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

Discussion

28.	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.

Discussion

29.	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

Discussion

30.	Which one of the following methods is generally used for the layout of the muck-car tracks
A.	the grass hopper method
B.	passing track method
C.	the cherry picker
D.	All the above.
Answer» E.

Discussion

31.	For B.G. single track railway, the height of the tunnel above top of rails should be
A.	5.5 m to 5.8 m
B.	5.8 m to 6.2 m
C.	6.7 m to 7.3 m
D.	7.3 m to 7.5 m
Answer» D. 7.3 m to 7.5 m

Discussion

32.	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.	All the above.
Answer» E.

Discussion

33.	A tunnel is found more advantageous as compared to the alternate routes because it:
A.	remains free from snow
B.	reduces the cost by reducing the route distance
C.	reduces the maintenance cost
D.	All the above.
Answer» E.

Discussion

34.	To attain the required shape of the tunnel section, we use :
A.	easers
B.	trimmers
C.	cut holes
D.	chisels.
Answer» C. cut holes

Discussion

35.	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.	Firing of head holes is done just before the bench holes are fired.
Answer» E.

Discussion

36.	The tunnels, the artificial underground passages are constructed for :
A.	highways
B.	railways
C.	sewerage
D.	All the above.
Answer» E.

Discussion

37.	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.

Discussion

38.	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.

Discussion

39.	Railway tunnels, are generally
A.	polycentric
B.	rectangular
C.	parabolic
D.	circular
Answer» B. rectangular

Discussion

40.	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

Discussion

41.	In the given figure drill holes, heading, mucking and benching are numbered 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

Discussion

42.	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

Discussion

43.	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

Discussion

44.	For initial surveys of tunnels, the following activities are involved: 1. Marking portal point with concrete pillars on the ground 2. Marking tunnel obligatory points on the topographical maps 3. Preliminary setting of the tunnel on the topographical Survey of India maps 3. 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

Discussion

45.	For transferring the tunnel alignment through shafts, we adopt the following steps : 1. Hanging two or more plumb lines in the shaft 2. Determining the bearing of the plumb lines i.e. plumb plane 3. Suspending a 35 kg weight by each plumb line 4. 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

Discussion

46.	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 :
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.

Discussion

47.	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 :
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

Discussion

48.	The following tunnels were constructed in different countries for different purposes : 1. Emperor Claudius built the first Roman tunnel 2. The first highway tunnel was constructed in Hungary 3. The first underground railway tunnel was constructed in Great Britain 4. 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

Discussion

Explore topic-wise MCQs in Surveying.

For tunnels exceeding 300 m in length, the grade should be provided below

Concrete lining is provided concurrently with the driving operation in case of

The difference of heights of the tunnels above rail tops of BG and MG tracks is kept

Which one of the following statements is not correct for heading and benching method of tunnelling ?

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

In case of drift method of tunnelling, the drift may be excavated at

An overhead track on a large truss frame is required in case of car changer by

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

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

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

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

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 :

The most commonly adopted pattern of cut holes is :

For highways, tunnelling is preferred to if the open cut exceeds :

In case of railways,

Which one of the following methods is adopted for permanent drainage of tunnels :

For hauling muck from the tunnel, the following type of muck-car is used :

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 :

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

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

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

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

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

High pressure grouting is generally restored for concreting in the lining if the rock strata is:

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

Forepoling method is generally adopted for tunnelling in :

Which one of the following methods is generally used for the layout of the muck-car tracks

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

The advantages of providing a pair of tunnels as compared to only one large highway tunnel is :

A tunnel is found more advantageous as compared to the alternate routes because it:

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

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

The tunnels, the artificial underground passages are constructed for :

The method of draining in the tunnels, is generally known as

Pick up the explosive used for tunnelling in soft rocks from the following :

Railway tunnels, are generally

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

In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4 The correct sequence is :

In the given figure drill holes, heading, mucking and benching are mumbered as 1, 2, 3, 4 The correct sequence is :

The cut of a tunnel face is shown in given figure. This is called

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 :

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 :