Thriveni Sainik Mining
10+ Interview Questions and Answers
Q1. What is bearing and types of bearing?
Bearings are mechanical components that reduce friction between moving parts. There are several types of bearings.
Bearings are used to support and guide rotating or oscillating shafts.
They reduce friction and allow smooth movement.
Types of bearings include ball bearings, roller bearings, and plain bearings.
Ball bearings use balls to reduce friction, while roller bearings use cylindrical rollers.
Plain bearings have a sliding surface and are often used in applications with low ...read more
Q2. Which types belt used there? M24 Grade Steelcord and 4 ply Belt
M24 Grade Steelcord and 4 ply Belt are used as types of belts.
M24 Grade Steelcord belt is made of high tensile steel cords and is suitable for heavy-duty applications.
4 ply Belt is a multi-layered belt that provides strength and durability.
Both types of belts are commonly used in industries such as mining, construction, and transportation.
M24 Grade Steelcord belt is ideal for conveying materials over long distances and in harsh environments.
4 ply Belt is suitable for conveyin...read more
Q3. Why used gear box in conveyor. Ans-Because for speed reduction and high torque.
Gear box is used in conveyor for speed reduction and high torque.
Gear box helps in reducing the speed of the conveyor system while increasing the torque.
It allows the motor to run at a higher speed while the conveyor moves at a slower speed.
Different types of gear boxes are used depending on the application, such as helical, worm, bevel, etc.
Gear boxes also help in maintaining a constant speed and preventing overloading of the motor.
They also provide protection against shock ...read more
Q4. Why used coupling. Ans-Because for power transmit from one shaft to another shaft.
Couplings are used to transmit power from one shaft to another shaft.
Couplings are used to connect two shafts together.
They allow for the transmission of power from one shaft to another.
Couplings can compensate for misalignment between shafts.
There are various types of couplings such as rigid, flexible, and fluid couplings.
Examples of applications include pumps, compressors, and generators.
Q5. What types of used coupling in conveyor. Ans-Gear coupling,pinbush coupling.
Gear coupling and pinbush coupling are commonly used in conveyors.
Gear coupling is used for heavy-duty applications and can handle high torque.
Pinbush coupling is used for light to medium-duty applications and provides flexibility.
Other types of couplings used in conveyors include chain coupling and grid coupling.
The choice of coupling depends on factors such as load capacity, speed, and alignment requirements.
Q6. What is the capacity of Secondary crusher. Ans-2500 TPH
The capacity of the Secondary crusher is 2500 TPH.
The Secondary crusher has a maximum capacity of 2500 TPH.
This means that it can process up to 2500 tons of material per hour.
The capacity of the crusher is important for determining the efficiency and throughput of the entire crushing circuit.
Q7. Capacity of Belt conveyor what is? 2400TPH.
The capacity of the belt conveyor is 2400TPH.
The capacity of the belt conveyor refers to the maximum amount of material that can be transported in a given time period.
TPH stands for 'tonnes per hour', which is a unit of measurement for the conveyor's capacity.
The capacity of the conveyor can be affected by factors such as the speed of the belt, the width of the belt, and the type of material being transported.
For example, a conveyor with a wider belt may have a higher capacit...read more
Q8. Why use nitrogen gas in suspension cylender.
Nitrogen gas is used in suspension cylinder to prevent foaming and cavitation.
Nitrogen gas is used as a cushion to prevent the formation of air bubbles in the hydraulic fluid.
It also prevents cavitation, which can cause damage to the cylinder and reduce its efficiency.
Nitrogen gas is non-reactive and does not corrode the cylinder, making it a suitable choice for suspension systems.
Examples of suspension systems that use nitrogen gas include shock absorbers in cars and hydraul...read more
Q9. What is the procedure of Disciplinary Action?
Disciplinary action is a process of addressing and correcting employee behavior or performance issues.
Investigate the issue and gather evidence
Inform the employee of the issue and provide them with an opportunity to respond
Hold a disciplinary meeting with the employee to discuss the issue and potential consequences
Decide on an appropriate disciplinary action, such as a verbal warning, written warning, suspension, or termination
Document the disciplinary action taken and commun...read more
Q10. Skelton system of 100 ton dumper
The Skelton system is a mechanism used in 100 ton dumpers for efficient unloading of materials.
The Skelton system uses a hydraulic cylinder to lift the dumper bed and dump the materials.
It is designed to handle heavy loads and withstand harsh working conditions.
The system is controlled by an operator using a control panel.
Regular maintenance is required to ensure the system operates smoothly and safely.
Q11. Difference between kVA and KVAR
kVA is the total power in a circuit, while KVAR is the reactive power in a circuit.
kVA is the apparent power in a circuit, which is the combination of real power (kW) and reactive power (KVAR).
KVAR is the reactive power in a circuit, which is the power that oscillates between the load and the source without being consumed.
kVA is used to size the electrical equipment, while KVAR is used to correct the power factor of the circuit.
For example, a motor may have a power rating of ...read more
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