Podcast
Questions and Answers
Which method is used for blasting in manual opencast mining?
Which method is used for blasting in manual opencast mining?
- TNT
- Gun powered explosives (correct)
- Dynamite
- Nitroglycerin
What is the diameter of the holes drilled in manual opencast mining?
What is the diameter of the holes drilled in manual opencast mining?
- 37mm (correct)
- 25mm
- 10mm
- 50mm
How are the overburden and minerals removed in manual opencast mining?
How are the overburden and minerals removed in manual opencast mining?
- By using excavators
- By manual loading in tubs (correct)
- By using trucks
- By using conveyor belts
What are the small pillars of rock left for measurement in manual opencast coal mining called?
What are the small pillars of rock left for measurement in manual opencast coal mining called?
What is the maximum height of 'sakhi' allowed in manual opencast coal mining?
What is the maximum height of 'sakhi' allowed in manual opencast coal mining?
Which method is used for loading the overburden and minerals in manual opencast mining?
Which method is used for loading the overburden and minerals in manual opencast mining?
What is the purpose of dividing the opencast mine area into two sections in manual opencast coal mining?
What is the purpose of dividing the opencast mine area into two sections in manual opencast coal mining?
What is the purpose of leaving small pillars of rock in manual opencast coal mining?
What is the purpose of leaving small pillars of rock in manual opencast coal mining?
What is the maximum depth of the holes drilled in manual opencast mining?
What is the maximum depth of the holes drilled in manual opencast mining?
What type of explosive is used for blasting in manual opencast mining?
What type of explosive is used for blasting in manual opencast mining?
