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I applied via Referral and was interviewed before Jan 2022. There was 1 interview round.
General mining field questions are there
Crown pillar & rib are terms used in mining to describe the rock structures above and around a mined-out area.
Crown pillar is the rock mass above an underground excavation that supports the overlying rock and prevents collapse.
Rib refers to the rock walls or pillars left between mined-out areas to provide support and prevent collapse.
Both crown pillar and rib are crucial for the stability and safety of underground mini...
I applied via Campus Placement and was interviewed before Dec 2023. There were 2 interview rounds.
Discuss the allocation of coal blocks and its relation to the per capita energy index.
I applied via Campus Placement and was interviewed before Nov 2023. There was 1 interview round.
Equipments used in an Open Cast Mine include excavators, dump trucks, bulldozers, drills, and draglines.
Excavators are used for digging and removing overburden or ore.
Dump trucks are used for transporting materials within the mine.
Bulldozers are used for pushing and leveling the ground.
Drills are used for drilling blast holes for explosives.
Draglines are used for removing overburden in large quantities.
Stripping ratio is the amount of waste rock removed to extract one unit of ore. Workable range for an OCP is typically between 1:1 to 10:1.
Stripping ratio is calculated by dividing the amount of waste rock by the amount of ore extracted.
A lower stripping ratio indicates a more efficient mining operation.
For an Open Cut Pit (OCP), the workable range for stripping ratio is usually between 1:1 to 10:1.
For example, if a mi...
I applied via Recruitment Consulltant and was interviewed in Sep 2022. There were 3 interview rounds.
I applied via Company Website and was interviewed before Apr 2022. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2021. There were 5 interview rounds.
Test for various reactions on different site conditions
Online test assignments
The camshaft and crankshaft have different speeds in an engine.
The camshaft controls the opening and closing of the engine's valves, while the crankshaft converts the reciprocating motion of the pistons into rotational motion.
The camshaft rotates at half the speed of the crankshaft in a four-stroke engine.
For example, if the crankshaft rotates at 6000 revolutions per minute (RPM), the camshaft will rotate at 3000 RPM.
T...
CNC stands for Computer Numerical Control. It is a manufacturing process that uses pre-programmed computer software to control machine tools.
CNC is a manufacturing process that automates the operation of machine tools.
It uses computer software to control the movement and operation of the machines.
CNC machines are widely used in industries such as automotive, aerospace, and electronics.
G codes are a programming language...
Different types of chips in metal cutting include continuous chips, discontinuous chips, and built-up edge chips.
Continuous chips are formed when the cutting tool continuously removes material from the workpiece.
Discontinuous chips are formed when the cutting tool intermittently removes material, resulting in segmented chips.
Built-up edge chips occur when the material being cut adheres to the cutting tool, forming a bu...
Discontinuous chips are formed in certain materials during machining processes.
Discontinuous chips are formed in brittle materials like cast iron, ceramics, and glass.
These materials have low ductility and tend to fracture during machining.
The discontinuous chips have a segmented or broken appearance.
They are characterized by irregular shapes and rough surfaces.
Examples of materials that form discontinuous chips includ...
I was interviewed in Dec 2016.
The lack of high-rise buildings in India can be attributed to various factors such as land availability, building regulations, cultural preferences, and infrastructure limitations.
Limited availability of land in urban areas restricts the construction of high-rise buildings.
Building regulations and zoning laws often impose height restrictions and setback requirements.
Cultural preferences in India often favor low-rise bu...
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