Option A: removal of bottom portion
Option B: excavation of one drift in the centre
Option C: removal of top portion
Option D: excavation being done along the periphery
Correct Answer: excavation being done along the periphery ✔
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Option A: 1 and 2
Option B: 1 and 3
Option C: 1 and 4
Option D: 2 and 3
Correct Answer: 1 and 4 ✔
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Option A: Both A and R are true and R is the correct explanation of A
Option B: Both A and R are true but R is not the correct explanation of A
Option C: A is true but R is false
Option D: A is false but R is true
Correct Answer: A is true but R is false ✔
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Option A: only (i) is correct
Option B: (i) and (iii) are correct
Option C: (ii) and (iii) are correct
Option D: (i) and (ii) are correct
Correct Answer: only (i) is correct ✔
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Option A: only (i) is correct
Option B: (i), (ii) and (iv) are correct
Option C: (i), (iii) and (iv) are correct
Option D: (i) and (ii) are correct
Correct Answer: (i), (ii) and (iv) are correct ✔
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Option A: Both A and R are true and R is the correct explanation of A.
Option B: Both A and R are true and R is not the correct explanation of A.
Option C: A is true but R is false.
Option D: A is false but R is true.
Correct Answer: Both A and R are true and R is the correct explanation of A. ✔
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Option A: (i) and (ii) are correct
Option B: (iii) and (iv) are coiTect
Option C: (i) and (iv) are correct
Option D: (ii) and (iii) are correct
Correct Answer: (iii) and (iv) are coiTect ✔
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Option A: 1,2,3,4
Option B: 1,4,2,3
Option C: 2,1,4,3
Option D: 2,4,1,3
Correct Answer: 1,4,2,3 ✔
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Option A: remains same
Option B: decreases
Option C: increases by 2.25 times
Option D: increases by 3.5 times
Correct Answer: increases by 2.25 times ✔
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Option A: carrying water
Option B: non-cohesive soils
Option C: tunnels driven by shield method
Option D: placement of concrete lining
Correct Answer: placement of concrete lining ✔
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Option A: 2N
Option B: N + 2
Option C: 2 N + 1
Option D: 2 N + 2
Correct Answer: N + 2 ✔
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Option A: propelling jacks
Option B: liner plate
Option C: hood
Option D: tail
Correct Answer: liner plate ✔
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Option A: 42 D
Option B: 82 D
Option C: 104 D
Option D: 124 D
Correct Answer: 82 D ✔
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Option A: 2 m
Option B: 3 m
Option C: 4 m
Option D: 5 m
Correct Answer: 3 m ✔
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Option A: construction of side walls is completed before invert and roof arch are built
Option B: construction of roof arch is completed before side walls and invert are built
Option C: construction of invert is completed before side walls and roof arch are built
Option D: construction of invert and side walls is completed before roof arch is built
Correct Answer: construction of roof arch is completed before side walls and invert are built ✔
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Option A: soft grounds
Option B: rock
Option C: self supporting grounds
Option D: broken grounds
Correct Answer: rock ✔
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Option A: liner plate
Option B: trench jack
Option C: stiffener
Option D: cutting edge
Correct Answer: cutting edge ✔
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Option A: It is suitable for construction in unstable rocks
Option B: In this method, it is easy to install timber support
Option C: Tunnelling can be continuous and the work can be expedited
Option D: In case of excessive water, it is easy to take correct steps
Correct Answer: Tunnelling can be continuous and the work can be expedited ✔
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Option A: 1,6,5,3,4,2,7
Option B: 1,2,6,3,5,4,7
Option C: 1, 6,2, 5,4, 3, 7
Option D: 1,6,2,5,3,4,7
Correct Answer: 1,6,2,5,3,4,7 ✔
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Option A: Army method
Option B: Needle beam method
Option C: Austrian method
Option D: English method
Correct Answer: Austrian method ✔
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Option A: silt
Option B: sand
Option C: clay
Option D: gravel
Correct Answer: clay ✔
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Option A: Needle beam method
Option B: Army method
Option C: German method
Option D: Italian method
Correct Answer: Army method ✔
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Which of the following lining material is useful for shield driven tunnels in sub aqueous regions ?
Option A: stone masonry
Option B: timber
Option C: cast iron
Option D: cement concrete
Correct Answer: cast iron ✔
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Option A: 6 mJ per second per m2 of face area
Option B: 6 m3 per minute per m2 of face area
Option C: 20 m3 per minute per m2 of face area
Option D: 6 m3 per hour per m2 of face area
Correct Answer: 6 m3 per minute per m2 of face area ✔
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Option A: wagon drill, churn drill, shot drill
Option B: wagon drill, shot drill, churn drill
Option C: shot drill, churn drill, wagon drill
Option D: churn drill, wagon drill, shot drill
Correct Answer: wagon drill, churn drill, shot drill ✔
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Option A: only up holes
Option B: only down holes
Option C: horizontal or up holes
Option D: horizor„al, down or up holes
Correct Answer: horizor„al, down or up holes ✔
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Option A: normal to face
Option B: inclined at 45° to the face
Option C: inclined at 15° to the face
Option D: inclined at 30° to the face
Correct Answer: inclined at 45° to the face ✔
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