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

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

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

For tunnels exceedingm in length, the grade should be provided below

Pick up the correct statement from the following:

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

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

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

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

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

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

The most commonly adopted pattern of cut holes is :

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

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

For transferring the tunnel alignment through shafts, we adopt the following steps :
Hanging two or more plumb lines in the shaft
Determining the bearing of the plumb lines i.e. plumb plane
Suspending akg weight by each plumb line
Immersing the weights of both the plumb lines in the buckets containing water.
The correct sequence of steps is :

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

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

Railway tunnels, are generally

For initial surveys of tunnels, the following activities are involved:
Marking portal point with concrete pillars on the ground
Marking tunnel obligatory points on the topographical maps
Preliminary setting of the tunnel on the topographical Survey of India maps
Driving lines between the fixed obligatory points.
The correct sequence of the activities is :

In case of railways,