Lumax Industries Maintenance Engineer Interview Questions and Answers

Q1. What is mechanism in Hydraulic press
Ans. 
The mechanism in a hydraulic press is the system of components that allows for the transmission of force through a fluid to generate a large amount of pressure.
• Hydraulic press uses a hydraulic cylinder to generate force.

• The force is transmitted through a fluid, typically oil or water.

• The mechanism includes valves, pumps, and pistons to control the flow of the fluid and generate pressure.

• The pressure created by the mech...read more
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Q2. What is the method of forging
Ans. 
Forging is a manufacturing process involving the shaping of metal using localized compressive forces.
• Heating the metal to a high temperature to make it more malleable

• Applying compressive forces to shape the metal into the desired form

• Cooling the forged metal to strengthen it

• Types of forging include open-die forging, closed-die forging, and seamless rolled ring forging
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Q1. 1.type and diffrance of encoders 2.MTBF&MTTR 3.Communication protocol plc
Ans. 
Encoders can be incremental or absolute, MTBF is Mean Time Between Failures, MTTR is Mean Time To Repair, common communication protocols for PLCs include Modbus and Profibus.
• Encoders can be incremental (provide relative position) or absolute (provide exact position)

• MTBF is the average time between failures of a system or component

• MTTR is the average time it takes to repair a failed system or component

• Common communicati...read more
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Q2. 4.Servo drive 5.vfd drive
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Plc programming test

Q1. Fresher student for every field
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Q1. Fresher student for every field
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Q1. A few knowledge of ac and DC machine
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They took a aptitude test . In that test they give the questions of math, gk, gi, english, and the tread test.

Q1. Then in 2nd round they took a psycho test . Quite good .
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Q2. Introduction part was must for sure . Then what r the types of Electrical machine , circuit breaker, various laws of Electrical Engineering, did some calculation, then starters .
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Q1. About department basic
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Q1. About previous CTC
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Q1. How to check backlash
Ans. 
Backlash can be checked by measuring the amount of free movement between two mating components.
• Use a dial indicator to measure the amount of movement between the two components

• Rotate one component while holding the other stationary to check for any play

• Compare the measured value to the manufacturer's specifications

• Adjust the components if necessary to reduce the amount of backlash
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Q2. With the help of dial
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Q1. About education ,qualifications, background
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Q1. About Carrier journey , self growth .
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Q1. What is mean by PM, breakdown maintenance, productive maintenance?
Ans. 
PM stands for Preventive Maintenance, Breakdown Maintenance is fixing equipment after it fails, Productive Maintenance is improving equipment to increase productivity.
• Preventive Maintenance (PM) involves regularly scheduled maintenance to prevent equipment failure.

• Breakdown Maintenance involves fixing equipment after it has failed.

• Productive Maintenance involves improving equipment to increase productivity and reduce d...read more
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Q2. What is mean by mttr, mtbf?
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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 equipment or system.

• MTBF is the average time between two consecutive failures of a system or equipment.

• MTTR and MTBF are important metrics used in maintenance engineering to measure the reliability and maintainability of equipment.

• MTTR and MTBF can be used to identify areas for improvemen...read more
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Q1. What was your previous job salary?
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Q2. What are the your salary expectations?
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