Calderys India Refractories Maintenance Head Interview Questions and Answers

Q1. Why Motor winding failure
Ans. 
Motor winding failure can occur due to various reasons such as overheating, overloading, insulation breakdown, and moisture ingress.
• Overheating of the motor can cause the insulation to deteriorate and lead to winding failure.

• Overloading the motor beyond its capacity can cause excessive stress on the windings, leading to failure.

• Insulation breakdown due to age, wear and tear, or poor maintenance can result in short circ...read more
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Q2. Difference between vfd and servo
Ans. 
VFD controls the speed of an AC motor by varying the frequency of the electrical supply, while servo motors use feedback to control position, velocity, and torque.
• VFD stands for Variable Frequency Drive, used to control the speed of AC motors by varying the frequency of the electrical supply.

• Servo motors use feedback to control position, velocity, and torque, providing precise motion control.

• VFDs are commonly used in a...read more
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Q3. Roles and responsibilities
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Current affairs discussed in GD round

Q1. What is the Primary role of maintenance engineer?
Ans. 
The primary role of a maintenance engineer is to ensure the smooth operation of machinery and equipment by conducting regular inspections, repairs, and preventive maintenance.
• Conducting regular inspections to identify any potential issues or malfunctions

• Performing repairs and troubleshooting to fix any problems that arise

• Implementing preventive maintenance schedules to prevent breakdowns and prolong equipment lifespan

• C...read more
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Q2. How do you troubleshoot a recurring problem in equipment?
Ans. 
To troubleshoot a recurring problem in equipment, I would follow a systematic approach to identify the root cause and implement a permanent solution.
• Start by gathering information about the problem, including when it occurs and any patterns or common factors.

• Inspect the equipment thoroughly to identify any visible signs of damage or wear.

• Review maintenance records and previous repair attempts to see if there is a recur...read more
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Q3. What is TPM and Maintenance KPI'S?
Ans. 
TPM stands for Total Productive Maintenance and Maintenance KPI's are Key Performance Indicators used to measure maintenance performance.
• TPM is a proactive approach to maintenance that aims to maximize equipment effectiveness and minimize downtime.

• Maintenance KPI's are metrics used to track and evaluate the performance of maintenance activities, such as equipment uptime, mean time between failures, and maintenance cost...read more
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Q1. Tell us about yourself?
Ans. 
I am a dedicated Maintenance Engineer with a strong background in mechanical engineering and a passion for problem-solving.
• Experienced in troubleshooting and repairing mechanical systems

• Skilled in preventive maintenance to ensure optimal equipment performance

• Proficient in reading technical drawings and schematics

• Strong knowledge of safety protocols and regulations in maintenance work
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Q2. How do you collaborate with other team.
Ans. 
I collaborate with other team members by actively communicating, sharing knowledge, and working together to solve problems.
• Regularly communicate with team members to discuss ongoing projects and share updates

• Participate in team meetings to brainstorm solutions and assign tasks

• Work together with other engineers to troubleshoot and resolve maintenance issues

• Share knowledge and best practices with team members to improve ...read more
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Q1. All questions macnical and answers or eltercal
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Q2. All questions macnical and answers or eltercal
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Math, reasoning ,Quant, technical, behaviour

Situational Group discussion