Question

Terrace cut is made in an open-pit mine using

• A. Front-end loader
• B. Bucket-wheel loader
• C. Wheel tractor-scraper
• D. Clam shell

Hint:

Bucket-wheel loaders are often used in large-scale mining operations, especially for soft materials like coal or overburden, due to their efficiency in continuous digging.

Answer 1

The Correct Option is B

Terrace cuts in open-pit mining involve creating stepped levels or benches to access mineral deposits safely and efficiently. A bucket-wheel loader is commonly used for this purpose due to its large rotating wheel with buckets that can continuously scoop and remove large volumes of material, making it ideal for creating terraces in such environments. Front-end loaders, wheel tractor-scrapers, and clam shells are less suited for this specific task in open-pit mining, as they are typically used for smaller-scale excavation or different types of material handling.
Thus, the correct answer is Bucket-wheel loader.