JK Cement Senior 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