Rawabi Specialized Contracting Interview Questions and Answers

Dredging equipment includes various machinery and tools used to remove sediment and debris from bodies of water.

• Dredger vessel: A specialized ship or boat equipped with dredging machinery.

• Dredging pumps: Used to create suction and transport sediment and water.

• Dragheads: Attached to the suction pipe to loosen and collect sediment.

• Pipeline: Transports the dredged material to a designated disposal area.

• Excavators or backh...read more

Hard soil is soil that has a high density and low moisture content, making it difficult to excavate or dredge.

• Hard soil is compacted and resistant to penetration.

• It requires heavy machinery and specialized equipment to remove or excavate.

• Hard soil can be found in areas with arid climates or where there has been extensive construction or compaction.

• Examples of hard soil include clay, silt, and dense gravel.

The cutter teeth required for sand dredging are typically made of hard materials like tungsten carbide or steel.

• Cutter teeth should be made of hard materials to withstand the abrasive nature of sand.

• Tungsten carbide and steel are commonly used materials for cutter teeth in sand dredging.

• The shape and size of the cutter teeth may vary depending on the specific dredging equipment being used.

Environmental pollution can be controlled through various measures.

• Implementing strict regulations and laws to limit pollution from industries and vehicles

• Promoting the use of renewable energy sources like solar and wind power

• Encouraging individuals to adopt eco-friendly practices like recycling and reducing plastic usage

• Investing in research and development of new technologies to reduce pollution

• Creating awareness and...read more