Q.1.
Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions?
Q.2.
Circular section of tunnels is not suitable for
Q.3.
The most commonly adopted pattern of cut holes is:
Q.4.
In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4; The correct sequence is:
Q.5.
The cut of a tunnel face is shown in given figure. This is called
Q.6.
Which of the following methods of tunneling is used for long tunnels at great depths?
- Army method
- Needle beam method
- Austrian method
- English method
Q.7.
The correct sequence of drilling equipment for increasing size of holes in tunnels is
- Wagon drill, churn drill, shot drill
- Wagon drill, shot drill, churn drill
- Shot drill, churn drill, wagon drill
- Churn drill, wagon drill, shot drill
Q.8.
Which one of the following is a component of a shield for tunneling?
- Liner plate
- Trench jack
- Stiffener
- Cutting edge
Q.9.
Railway tunnels are generally
- Polycentric
- Rectangular
- Parabolic
- Circular
Q.10.
Drift method of tunneling is used to construct tunnels in
- Soft grounds
- Rock
- Self supporting grounds
- Broken grounds
Q.11.
Concrete lining is provided concurrently with the driving operation in case of
- Rock terrain
- Soft rock
- Running soil
- None of these
Q.12.
In Belgium method of tunnelling
- Construction of side walls is completed before invert and roof arch are built
- Construction of roof arch is completed before side walls and inverts are built
- Construction of invert is completed before side walls and roof arch are built
- Construction of invert and side walls is completed before roof arch is built
Q.13.
Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?
- It is suitable for construction in unstable rocks
- In this method, it is easy to install timber support
- Tunneling can be continuous and the work can be expedited
- In case of excessive water, it is easy to take correct steps
Q.14.
A tunnel is found more advantageous as compared to the alternate routes because it:
- Remains free from snow
- Reduces the cost by reducing the route distance
- Reduces the maintenance cost
- All the above
Q.15.
Which of the following lining material is useful for shield driven tunnels in sub aqueous regions?
- Stone masonry
- Timber
- Cast iron
- Cement concrete
Q.16.
The most suitable soil for compressed air tunnelling is
- Silt
- Sand
- Clay
- Gravel
Q.17.
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than
- 2 m
- 3 m
- 4 m
- 5 m
Q.18.
Forepoling method is generally adopted for tunnelling in:
- Soft ground
- Firm ground
- Running ground
- None of these
Q.19.
Which of the following is not a component of the shield?
- Propelling jacks
- Liner plate
- Hood
- Tail
Q.20.
Which one of the following tunneling methods is used for laying underground sewers?
- Needle beam method
- Army method
- German method
- Italian method
Q.21.
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 platform for working on heading
- Removal of muck from the heading is very easy
- None of these
Q.22.
High pressure grouting is generally restored for concreting in the lining if the rock strata is:
- Highly fissured
- Poor
- Likely to get seepage of water
- All of the above
Q.23.
Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions?
- Brick lining
- Stone lining
- Timber line
- Cast iron lining
Q.24.
What is the correct sequence of the following events of construction of a shaft in rock?1.Drilling and blasting 2.Timbering 3.Pumping 4.Mucking Select the correct answer using the codes given below Codes:
- 1, 2, 3, 4
- 1, 4, 2, 3
- 2, 1, 4, 3
- 2, 4, 1, 3
Q.25.
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
- All the above
Q.26.
An overhead track on a large truss frame is required in case of car changer by
- The grass hopper method
- The passing track method
- California crossing method
- Dixon conveyor method
Q.27.
Which one of the following statements is not correct with regard to heading and henching 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
- The holes in head and bench are loaded together with explosive for blasting
- Firing of head holes is done just before the bench holes are fired
Q.28.
Which one of the following methods is generally adopted for tunnelling in firm ground
- Full face method
- Top heading and benching method
- Drift method
- All the above
Q.29.
The difference of heights of the tunnels above rail tops of BG and MG tracks is kept
- 0.30 m
- 0.45 m
- 0.60 m
- 0.75 m
Q.30.
Which one of the following methods is adopted for permanent drainage of tunnels?
- Provision of longitudinal drains
- Continuous open drains
- Concrete lining
- All the above