Related Questions

'Wooded area ' means
A area full of woods
B area that looks wooden
C forest area
D forest wood
A tea merchant blends 2 kinds of tea, putting in 3 parts of a Tk. 25 per kg grade to 1 part of a Tk. 15 per kg. If the mixture is changed to 1 part of the Tk. 25 per kg grade to 3 parts of the less expensive grade, how much will the shop lose or save in blending 200 kg?
A lose Tk. 500
B loss Tk. 1,000
C save Tk. 1,500
D save Tk. 1,000
Reba's grade was in the 80th percentile out of 120 grades in her class. In another class of 200 students there were 24 grades higher than Reba's .If nobody had Reba's grade. then Reba was what percentile of the two classes combined?
A 30th
B 55th
C 67th
D 85th
Which of the following methods of tunneling is used for long tunnels at great depths?
A Army method
B Needle beam method
C Austrian method
D English method
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than
A 2 m
B 3 m
C 4 m
D 5 m
Pick up the mechanical ventilation method used for tunnels from the following:
A Blowing fresh air by ducts to the face of tunnel
B Exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel
C Blowing fresh air and exhausting foul air by ducts
D All the above
If ‘N’ is the number of shafts used, then the total number of faces available for attacking the excavation and construction in tunnels are
A 2N
B N + 2
C 2N + 1
D 2N + 2
Which of the following lining material is useful for shield driven tunnels in sub aqueous regions?
A Stone masonry
B Timber
C Cast iron
D Cement concrete
The tunnels, the artificial underground passages are constructed for:
A Highways
B Railways
C Sewerage
D All the above
Circular section of tunnels is not suitable for
A Carrying water
B Non-cohesive soils
C Tunnels driven by shield method
D Placement of concrete lining

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