Neelachal Ispat Nigam Mining Engineer Interview Questions and Answers

Underground working in mining involves the use of blasting systems, support systems, and ventilation.

• Underground working in mining is done through the use of tunnels and shafts.

• Blasting systems are used to break up the rock and extract the desired minerals.

• Support systems such as rock bolts, shotcrete, and steel arches are used to ensure the stability of the underground workings.

• Ventilation systems are crucial for prov...read more

Gases like carbon monoxide and nitrogen oxides are present from blasting and are handled through ventilation and monitoring.

• Gases are produced during blasting due to the combustion of explosives.

• Carbon monoxide and nitrogen oxides are the most common gases produced.

• These gases can be harmful to humans and the environment.

• Ventilation systems are used to remove the gases from the mine.

• Monitoring systems are used to detec...read more

The growth of income is dependent on various factors such as education, experience, industry, and location.

• Education plays a crucial role in determining income growth.

• Experience is another important factor that affects income growth.

• The industry in which one works also impacts income growth.

• Location can also play a significant role in determining income growth.

• Networking and building relationships can lead to better jo...read more

A monopulley is a type of pulley system with a single sheave or wheel.

• Monopulley is a simple machine that changes the direction of force applied to a load.

• It consists of a single sheave or wheel that rotates around a fixed axis.

• It is commonly used in lifting heavy loads and in mechanical advantage systems.

• Examples of monopulley include flagpole pulleys, clothesline pulleys, and window blind pulleys.

I am not privy to the financial growth of my employer.

• I am not involved in the financial aspects of the company.

• I focus on ensuring quality in the products and processes.

• However, I believe that financial growth is important for any organization to sustain and grow.

• It is important to have a strong financial foundation to invest in research and development, training, and infrastructure.

• This can lead to better products, i...read more

The power pack position for longwall mining face should be strategically located for efficient operation.

• The power pack should be located near the longwall face to minimize the length of hydraulic hoses and electrical cables.

• It should be positioned in a safe and accessible location for maintenance and repair.

• The power pack should be designed to withstand the harsh mining environment, including dust and moisture.

• The lay...read more

Bord and pillar mining percentage of extraction refers to the amount of coal or ore that can be extracted from a given area using this method.

• The percentage of extraction in bord and pillar mining can vary depending on factors such as the size of the pillars left behind, the thickness of the seam being mined, and the equipment used.

• In general, the percentage of extraction for coal using bord and pillar mining ranges fr...read more

Explaining blast output calculation and powder factor calculation.

• Blast output calculation involves determining the amount of material moved during a blast.

• Powder factor calculation involves determining the amount of explosive needed to move a certain amount of material.

• Blast output calculation can be done using the formula: Volume of material moved = hole volume x burden x spacing x number of holes.

• Powder factor calcu...read more