Tunnel Engineering

This is an MCQ-based quiz on Tunnel Engineering.

This includes the cut and cover method, the bored tunnel method, the clay kicking method, the shaft method, and the pipe jacking method.

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Which one of the following is a component of a shield for tunneling?

Liner plate Trench jack Stiffener Cutting edge

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

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

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

Muck box Side dump car U-bottom All of these

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

4.2 m to 4.5 m 4.5 m to 4.8 m 4.9 m to 5.5 m 5.5 m to 5.8 m

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

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

Blasting gelatine Special gelatine Ammonia dynamite Semi-gelatine

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 All the above

.......... is a component of a shield for tunneling?

Stiffener Trench jack Liner plate Cutting edge

The circular section of tunnels is not suitable for ...........

Carrying water Non-cohesive soils Placement of concrete lining Tunnels driven by shield method

Which of the following methods are utilized for permanent drainage of tunnels?

Concrete lining Continuous open drains Provision of longitudinal drains All of the above

Which lining material is useful for shield driven tunnels in sub aqueous regions?

Timber Cast iron Stone masonry Cement concrete

Which of the following statements is incorrect for the heading and benching method of tunneling?

Removal of muck from the heading is very easy Drilling and mucking can be done simultaneously Benching provides a plateform for working on heading All of the above

We use ............. to attain the required shape of the "tunnel section.

Chisels Easers Trimmers Cut holes

Railway tunnels are generally .............

Circular Parabolic Polycentric Rectangular

The section of the tunnel must have a width ................. for B.G. single track.

4.5 m to 4.8 m 4,9 m to 5.5 m 5.5 m to 5.8 m. None of the above

The first operation relates to ................ in the "full face" method of constructing tunnels.

Removal of top portion Removal of bottom portion Excavation of one drift in the centre Excavation being done along the periphery

The Drift method of tunnelling is used to construct tunnels in .......

Rocks Broken grounds Soft grounds None of the above

What is the correct sequence of the following events in rock tunneling?