Tunnel Engineering — Part 1 MCQs with Explanations

(iii) and (iv) are correct is the correct answer to “Which of the following are percussion drills? (i) Shot drill (ii) Diamond drill (iii) Wagon drill (iv) Churn drill”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Cast iron is the correct answer to “Which of the following lining material is useful for shield driven tunnels in sub aqueous regions”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Austrian method is the correct answer to “Which of the following methods of tunneling is used for long tunnels at great depths”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Horizontal down or up holes is the correct answer to “Drifters can be used to drill”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All the above is the correct answer to “The tunnels, the artificial underground passages are constructed for:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

None the above is the correct answer to “Which one of the following statements is not correct in respect of setting of an inclined tunnel”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All the above is the correct answer to “Which one of the following methods is generally used for the layout of the muck-car tracks”. This question is standard in competitive examination syllabi for Tunnel Engineering.

450 particles/cm3 is the correct answer to “The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Placement of concrete lining is the correct answer to “Circular section of tunnels is not suitable for”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All the above is the correct answer to “The most commonly adopted pattern of cut holes is:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All of these is the correct answer to “Which one of the following methods of tunnelling does not require the use of time bearing”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Trimmers is the correct answer to “To attain the required shape of the tunnel section, we use:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Clay is the correct answer to “The most suitable soil for compressed air tunnelling is”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Three sections is the correct answer to “For full face method, the excavation to be done is generally divided into”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Cast iron lining is the correct answer to “Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions”. This question is standard in competitive examination syllabi for Tunnel Engineering.

1 and 4 is the correct answer to “"Consider the following situations. 1.Soil is soft. 2.Volume of existing surface traffic on the alignment is heavy. 3.Track is at a deeper level. 4.Water table is high. In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at "”. This question is standard in competitive examination syllabi for Tunnel Engineering.

75% of the ruling gradient is the correct answer to “For tunnels exceeding 300 m in length, the grade should be provided below”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Tunnelling is preferred is the correct answer to “In case of railways,”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Army method is the correct answer to “Which one of the following tunneling methods is used for laying underground sewers”. This question is standard in competitive examination syllabi for Tunnel Engineering.

6 m3 per minute per m2 of face area is the correct answer to “In compressed air tunnelling, the volume of free air provided is”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All of the above is the correct answer to “High pressure grouting is generally restored for concreting in the lining if the rock strata is:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Michigan cut is the correct answer to “The cut of a tunnel face is shown in given figure. This is called”. This question is standard in competitive examination syllabi for Tunnel Engineering.

2, 3, 1, 4, 5 is the correct answer to “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:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

5 m to 6 m is the correct answer to “The length of the needle beam used in needle beam method of tunnelling is usually”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Polycentric is the correct answer to “Railway tunnels are generally”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All of the above is the correct answer to “The method of draining in the tunnels, is generally known as”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Two openings are provided is the correct answer to “In the wooded bulk-head, used for mucking in steep grade tunnels,”. This question is standard in competitive examination syllabi for Tunnel Engineering.

3 m is the correct answer to “Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than”. This question is standard in competitive examination syllabi for Tunnel Engineering.

6.7 m to 7.3 m is the correct answer to “For B.G. single track railway, the height of the tunnel above top of rails should be”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Inclined at 45° to the face is the correct answer to “A good blast with a good yield is obtained if the cut hole is”. This question is standard in competitive examination syllabi for Tunnel Engineering.

3, 2, 4, 1 is the correct answer to “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 4.Driving lines between the fixed obligatory points The correct sequence of the activities is:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Construction of roof arch is completed before side walls and inverts are built is the correct answer to “In Belgium method of tunnelling”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All the above is the correct answer to “The advantages of providing a pair of tunnels as compared to only one large highway tunnel is:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All the above is the correct answer to “Which one of the following methods is adopted for permanent drainage of tunnels”. This question is standard in competitive examination syllabi for Tunnel Engineering.

i, iv, ii, iii is the correct answer to “What is the correct sequence of the following events of construction of a shaft in rock? 1) Drilling and blasting ii) Timbering iii) Pumping iv) Mucking Select the correct answer”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Cutting edge is the correct answer to “Which one of the following is a component of a shield for tunneling”. This question is standard in competitive examination syllabi for Tunnel Engineering.

Wagon drill, churn drill, shot drill is the correct answer to “The correct sequence of drilling equipment for increasing size of holes in tunnels is”. This question is standard in competitive examination syllabi for Tunnel Engineering.

0.60 m is the correct answer to “The difference of heights of the tunnels above rail tops of BG and MG tracks is kept”. This question is standard in competitive examination syllabi for Tunnel Engineering.

All of these is the correct answer to “For hauling muck from the tunnel, the following type of muck-car is used:”. This question is standard in competitive examination syllabi for Tunnel Engineering.

4.9 m to 5.5 m is the correct answer to “For B.G. single track, the section of the tunnel must have a width”. This question is standard in competitive examination syllabi for Tunnel Engineering.