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PLC stands for Programmable Logic Controller, a digital computer used for automation of electromechanical processes.
PLC is used to control machinery in industries by programming sequences of operations.
It is designed to withstand harsh industrial environments.
PLCs can be programmed using ladder logic, function block diagrams, or structured text.
They are commonly used in manufacturing, automotive, and food processing in...
A CNC machine is a computer-controlled machine tool used for cutting, shaping, and finishing metal, wood, or other materials.
CNC stands for Computer Numerical Control
CNC machines use coded instructions to control the movement of the cutting tool
Common types of CNC machines include milling machines, lathes, and routers
CNC machines are widely used in manufacturing industries for precision machining
A servo drive is an electronic amplifier used to power and control servo motors in automation systems.
Converts low-power control signals into high-power signals to drive the servo motor
Provides precise control over the speed, position, and torque of the motor
Used in robotics, CNC machines, conveyor systems, etc.
External encoder bypass parameter in CNC allows the machine to ignore the feedback from the external encoder and use internal feedback instead.
External encoder bypass parameter is used in CNC machines to switch between using external encoder feedback and internal feedback.
This parameter is typically used when the external encoder is malfunctioning or needs to be bypassed for testing purposes.
By setting the bypass param...
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posted on 30 Nov 2024
Maintenance robot , plc, hmi, spm, welding machine , vfd etc
Basic from our bachelor degree
I applied via Recruitment Consulltant and was interviewed in Mar 2023. There were 2 interview rounds.
Temperature rise of hydraulic oil in die casting machine is caused by friction, overloading, inadequate cooling, or contaminated oil.
Friction between moving parts can generate heat and increase oil temperature
Overloading the machine can cause excessive heat generation
Inadequate cooling system or malfunctioning cooling components can lead to temperature rise
Contaminated oil with debris or moisture can reduce lubrication
posted on 17 Apr 2023
I applied via Approached by Company and was interviewed in Jul 2022. There were 3 interview rounds.
A CNC machine can have 3, 4, or 5 axes depending on its configuration.
The X, Y, and Z axes are common in 3-axis machines.
4-axis machines add a rotary axis, usually the A-axis.
5-axis machines add a second rotary axis, usually the B-axis.
Some machines may have additional axes for specialized operations, such as milling machines with a tilting spindle head.
The number of axes determines the machine's capabilities and the c
Maintenance procedure involves regular inspection, cleaning, repair and replacement of equipment to ensure optimal performance and prevent breakdowns.
Create a maintenance schedule based on manufacturer recommendations and equipment usage
Perform regular inspections to identify potential issues before they become major problems
Clean and lubricate equipment as needed to prevent wear and tear
Repair or replace damaged or wo...
The question is incomplete or incorrect. There is no such term as 'back las'.
There is no known term or phrase as 'back las'.
It is possible that the interviewer made a mistake or was trying to ask a different question.
As a maintenance engineer, it is important to clarify any unclear or confusing questions to ensure accurate responses.
Types of maintenance include corrective, preventive, predictive, and proactive maintenance.
Corrective maintenance involves fixing a problem after it has occurred.
Preventive maintenance involves regularly scheduled maintenance to prevent problems from occurring.
Predictive maintenance involves using data and analytics to predict when maintenance is needed.
Proactive maintenance involves identifying and addressing potentia...
The number of points in a PM checklist varies depending on the equipment being checked.
PM checklists are specific to each piece of equipment.
The number of points in a PM checklist can range from a few to hundreds.
Points in a PM checklist can include tasks such as inspecting, cleaning, and lubricating equipment.
The purpose of a PM checklist is to ensure that equipment is properly maintained and to prevent breakdowns.
The...
Machines need regular preventive maintenance (PM) to ensure optimal performance and longevity.
Regular cleaning and lubrication
Inspection and replacement of worn parts
Calibration and adjustment of sensors and controls
Testing and monitoring of performance
Documentation of maintenance activities
Training of operators and maintenance staff
MTTR stands for Mean Time To Repair and MTBF stands for Mean Time Between Failures.
MTTR is the average time taken to repair a failed system or equipment.
MTBF is the average time between two consecutive failures of a system or equipment.
MTTR is used to measure the efficiency of maintenance and repair processes.
MTBF is used to measure the reliability of a system or equipment.
MTBF = (total operating time - total downtime)...
MTTR is the average time to repair a failed system while MTBF is the average time between failures.
MTTR measures the maintainability of a system while MTBF measures its reliability.
MTTR is calculated by dividing the total downtime by the number of failures while MTBF is calculated by dividing the total uptime by the number of failures.
MTTR is usually shorter than MTBF as it only measures the time to repair a failed sys...
Breakdown is an unexpected failure of equipment or machinery. KPI stands for Key Performance Indicator, a measurable value that indicates how well a company is achieving its goals.
Breakdown can cause production delays and loss of revenue
KPIs can be used to track maintenance performance and identify areas for improvement
Examples of KPIs for maintenance include equipment uptime, mean time between failures, and maintenanc
posted on 3 May 2021
I applied via Company Website and was interviewed in Apr 2021. There were 5 interview rounds.
posted on 21 Jun 2021
I applied via Job Portal and was interviewed in Dec 2020. There were 4 interview rounds.
A sensor is a device that detects and responds to physical input from the environment.
Sensors convert physical quantities into electrical signals.
They are used in various industries for monitoring and control purposes.
Examples of sensors include temperature sensors, pressure sensors, and motion sensors.
PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
PLC is a specialized computer designed to control industrial processes and machinery.
It uses a programmable memory to store instructions and execute them in a sequential manner.
PLCs are commonly used in manufacturing, power plants, and other industrial settings.
They can be programmed to monitor inpu...
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