6. {a) State three applications for each of the following plants: (i) power shovel; (ii) drag line; (iii) clam shell: (iv) buldozer;(12 marks)Oct./Nov. 2021

(i) Power shovel:

1. Mining: Power shovels are commonly used in mining operations to excavate large volumes of earth and rock in order to extract minerals.
2. Construction: Power shovels are also used in construction projects to excavate trenches and foundations, and to move large amounts of dirt and debris.
3. Demolition: Power shovels can be used to demolish buildings, bridges, and other structures by removing large amounts of debris and rubble.

(ii) Dragline:

1. Mining: Draglines are commonly used in surface mining to excavate large volumes of earth and rock in order to extract coal, minerals, and other resources.
2. Construction: Draglines can be used to excavate trenches and foundations for large-scale construction projects, such as dams and canals.
3. Environmental cleanup: Draglines can be used to remove contaminated soil and debris from environmental cleanup sites.

(iii) Clam shell:

1. Dredging: Clam shell dredges are commonly used to excavate and remove sediment from waterways, harbors, and other bodies of water.
2. Demolition: Clam shell dredges can be used to remove debris from demolition sites and other areas.
3. Construction: Clam shell dredges are also used in construction projects to excavate trenches and foundations and to move large amounts of dirt and debris.

(iv) Bulldozer:

1. Construction: Bulldozers are commonly used in construction projects to level and grade land, move large amounts of dirt and debris, and compact soil.
2. Mining: Bulldozers are also used in mining operations to level and grade land, move large amounts of dirt and debris, and compact soil.
3. Demolition: Bulldozers can be used to demolish buildings, bridges, and other structures by pushing or pulling them down and moving the debris out of the way.