Which of the following structures protects the shore by trapping of littoral drift?

A boat has a crack in its bull which is leaking water into the boat and could pump which can pump the water out in 8 hours . If the boat is 168 km away from the shore and the pump is running what is the minimum speed the boat should run at so that it can reach the shore before sinking?

A

5km./hour

B

6 km/hour

C

7 km/hour

D

8km/hour

Littoral forests occur

A

On hills

B

Along the sea coasts and tidal creeks

C

Where the rainfall is heavy

D

At elevated places

Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area?

A

Sea walls, bulk heads and groynes

B

Sea walls, bulk heads and revetments

C

Sea walls, revetments and groynes

D

Bulk heads, revetments and groynes

Which of the following type of sea walls results in greatest protection of shore structures?

A

vertical sea wall

B

sea wall with batter

C

stepped sea wall

D

sea wall with concave face

Back-trapping in a distillation column results due to

A

Low gas velocity

B

High gas velocity

C

Excessive liquid gradient over the tray

D

Low reflux ratio

Back-trapping in a distillation column

A

Increases tray efficiency

B

Decreases tray efficiency

C

Reduces pressure drop

D

Is desirable, as it provides improved vapour-liquid contact

Which of the following data structures are indexed structures?

A

linear arrays

B

linked lists

C

both a and b

D

All of these

Which of the folowing data structures are indexed structures/

A

linear arrays

B

linked lists

C

both a and b

D

None of the above

Which one of the following is the first sea shore gas field in Bangladesh?

A

Bakhrabad

B

Sangu

C

Semutang

D

Srikail

Which of the following is a place of off-shore banking?

A

Germany

B

Cayman Islands

C

India

D

Israel

Which of the following structures protects the shore by trapping of littoral drift?

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