Jaypee Cement Mining Engineer Interview Questions and Answers

Mines crusher is a machine used to break down large rocks into smaller pieces for easier transport and processing.

• Mines crusher is commonly used in mining operations to reduce the size of ore and other materials.

• It works by applying pressure to the material to break it down into smaller pieces.

• Different types of crushers are used depending on the type of material being crushed, such as jaw crushers, cone crushers, and ...read more

PESO refers to different forms of explosives: Primary, Secondary, Emulsion, and Oxidizer.

• Primary explosives are sensitive and used to initiate other explosives.

• Secondary explosives are less sensitive and used for blasting.

• Emulsion explosives are a mixture of oxidizers and fuels.

• Oxidizers are chemicals that provide oxygen for combustion.

Stripping ratio is the ratio of overburden to ore or coal.

• It is used in mining to determine the amount of waste that needs to be removed to extract a given amount of ore or coal.

• A high stripping ratio indicates that a lot of waste needs to be removed before the desired mineral can be extracted.

• For example, a stripping ratio of 3:1 means that for every 3 units of waste material removed, 1 unit of ore or coal can be extr

Angle of repose is the maximum angle at which a material can be piled up without slumping or sliding down.

• It is the steepest angle at which a sloping surface formed of a particular loose material is stable.

• It is influenced by the size, shape, and surface properties of the particles, as well as the moisture content and packing density.

• Examples include sand dunes, piles of gravel, and heaps of coal.

• It is important in fie...read more

Dump failure can occur due to various reasons such as hardware failure, software bugs, power failure, etc.

• Hardware failure such as disk failure or memory failure

• Software bugs or corruption in the dump file

• Power failure during the dump process

• Insufficient disk space for the dump file

• Incompatibility issues with the operating system or drivers

• Malware or virus infection

• Human error such as accidentally deleting the dump fil

Machine and Dumper TPH can be calculated by measuring the weight of material moved in a certain time period.

• Measure the weight of material moved by the machine or dumper in a certain time period

• Divide the weight by the time period to get the TPH (tonnes per hour)

• Repeat the process multiple times to get an average TPH

• Use a weighbridge or load cell to accurately measure the weight

• Ensure the machine or dumper is loaded to

Safety is the state of being protected from harm or danger.

• It involves taking precautions to prevent accidents or injuries.

• It can be achieved through proper training, equipment, and procedures.

• Examples include wearing protective gear, following safety protocols, and maintaining equipment.

• Safety is important in all industries, from construction to healthcare.

• It is a shared responsibility of both employers and employees.

• ...read more

Mines foreman is responsible for overseeing the safety, production, and maintenance of a mining operation.

• Ensuring compliance with safety regulations and protocols

• Supervising and coordinating the work of miners and other staff

• Monitoring production levels and ensuring targets are met

• Maintaining equipment and machinery

• Preparing reports and maintaining records

• Training new employees and providing ongoing training to existi

The latest technologies in the mining industry include automated drilling systems, advanced charging and blasting techniques, and safety devices in excavation machinery.

• Automated drilling systems use advanced sensors and algorithms to optimize drilling operations and improve efficiency.

• Advanced charging and blasting techniques, such as electronic detonators and computer-controlled blasting, enhance safety and precision...read more

My current position involves leading cross-functional teams and driving technical innovation.

• I am responsible for leading a team of engineers in developing new products and technologies.

• I work closely with other departments such as marketing and sales to ensure alignment on project goals.

• I am involved in setting technical direction and strategy for the team, as well as mentoring junior engineers.

• I have successfully imp...read more