Tata Steel Mining Engineer Interview Questions and Answers

First round as conducted by based on aptitude and subject test

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Q1. Difference between space and burden of blasting
Ans. 
Space is the distance between blastholes, while burden is the distance from the blasthole to the free face of the rock.
• Space is the distance between blastholes in a blast pattern.

• Burden is the distance from the blasthole to the free face of the rock.

• Space affects the fragmentation and distribution of the blasted material.

• Burden influences the amount of energy transferred to the rock mass.

• Optimal space and burden ratios
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Q2. Types of coal grade
Ans. 
Coal grades are categorized based on their carbon content and energy value.
• Coal grades include lignite, sub-bituminous, bituminous, and anthracite

• Higher carbon content coal grades have higher energy value

• Anthracite is the highest grade coal with the highest carbon content and energy value
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