Ptc Industries Assistant Manager Maintenance Interview Questions and Answers

Q1. Total hydraulic Cylinders in CCM machine
Ans. 
The total number of hydraulic cylinders in a CCM machine varies depending on the specific model and design.
• The number of hydraulic cylinders in a CCM machine can range from 4 to 12 or more, depending on the size and complexity of the machine.

• Each hydraulic cylinder in a CCM machine serves a specific function, such as controlling the movement of the mold or applying pressure to the molten metal.

• The hydraulic cylinders i...read more
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Q2. EOT crane Main Hoist brake setting
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Q3. Reason of Crane wheel wear
Ans. 
Crane wheel wear is caused by factors such as overloading, misalignment, lack of lubrication, and poor maintenance.
• Overloading the crane beyond its capacity can cause excessive wear on the wheels.

• Misalignment of the crane wheels can lead to uneven wear and premature failure.

• Lack of proper lubrication can increase friction and wear on the wheels.

• Poor maintenance practices, such as not regularly inspecting and replacing
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Q4. Limits used in EOT crane
Ans. 
Limits used in EOT crane include overload limit, travel limit, and height limit.
• Overload limit prevents the crane from lifting loads beyond its capacity

• Travel limit restricts the crane's movement within a specified range

• Height limit ensures the crane does not exceed the maximum height for safe operation
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Q1. What is Hydrolic system
Ans. 
Hydraulic system is a technology that uses fluids to transmit power and energy.
• Hydraulic systems use a liquid, usually oil, to transmit power and energy.

• They work by applying force at one point and transmitting it to another point using an incompressible fluid.

• Hydraulic systems are commonly used in heavy machinery, such as excavators and cranes.

• They are also used in braking systems in cars and airplanes.

• Hydraulic syste...read more
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Q2. How to reduce Downtime.
Ans. 
Reducing downtime can be achieved through proper maintenance planning, regular equipment inspections, and quick response to issues.
• Implement a preventive maintenance program to identify and address potential issues before they cause downtime.

• Conduct regular equipment inspections to identify and address any issues early on.

• Train employees on proper equipment use and maintenance to prevent breakdowns caused by human erro...read more
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Q1. Regarding Transformers,HT motors,Automation ,PLC logics & SAP
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Q2. Also recruiters look your personality
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Q3. Communication skills
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Q4. Experience descriptions
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Q1. What is the use of lubricant in roling mill
Ans. 
Lubricant in rolling mills reduces friction between metal surfaces, prevents wear and tear, and improves efficiency.
• Lubricant reduces friction between metal surfaces in rolling mills

• Prevents wear and tear on machinery

• Improves efficiency by reducing energy consumption

• Helps in cooling the metal during the rolling process

• Examples: oil-based lubricants, grease, graphite-based lubricants
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Q2. What are the major cause of roll broken
Ans. 
The major causes of roll breakage in maintenance engineering include material defects, improper setup, excessive tension, and foreign objects.
• Material defects such as weak spots or impurities can weaken the roll and lead to breakage.

• Improper setup or alignment of the roll can cause uneven stress distribution and eventual breakage.

• Excessive tension on the roll can exceed its load-bearing capacity and cause it to break.

• F...read more
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Q3. What is cause of rolling mill bearing broken
Ans. 
The main causes of rolling mill bearing breakage are lack of lubrication, contamination, overloading, and misalignment.
• Lack of lubrication can lead to increased friction and heat generation, causing the bearing to fail prematurely.

• Contamination from dirt, debris, or water can accelerate wear and tear on the bearing surfaces.

• Overloading the bearing beyond its capacity can cause excessive stress and lead to failure.

• Misal...read more
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Q4. Compressor overhead cause
Ans. 
Compressor overhead cause can be due to various factors such as high discharge pressure, low suction pressure, dirty filters, or worn out components.
• High discharge pressure can lead to overheating of the compressor.

• Low suction pressure can cause the compressor to work harder and overheat.

• Dirty filters can restrict airflow and cause the compressor to overheat.

• Worn out components such as valves or seals can lead to ineff
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Q5. How to measure wire rope condition
Ans. 
Wire rope condition can be measured by visual inspection, non-destructive testing, and load testing.
• Visual inspection for signs of wear, corrosion, broken wires, and distortion

• Non-destructive testing methods like magnetic particle inspection, ultrasonic testing, and dye penetrant testing

• Load testing to assess the strength and integrity of the wire rope under working conditions
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Q6. Lubricant chemicals property
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Common aptitude test

Q1. Electrical technical questions
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Q1. Personal details
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Q1. By Carefully seeing your Resume " What is your family Background?"
Ans. Sir, I am only son of my father. we are 3 member in family and one uncle.
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Q2. What are manufacturing process for producing a component?
Ans. 
The manufacturing process for producing a component involves several steps.
• Designing the component

• Material selection

• Machining or forming the raw material

• Assembly of the component

• Quality control and inspection
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Q3. 1. Casting 2.Machining 3.Forming 4.Deep Drawing etc....
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Q1. Regrading yourself and regrading curr ctc and exp. Ctc
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Q1. What is 7qc tool and Regrading mttr, mtbf, and some question releted to types of breakdown types of failure and how can reduce mttr.
Ans. 
7QC tools are quality control tools used to identify and solve quality-related issues. MTTR stands for Mean Time To Repair, MTBF stands for Mean Time Between Failures.
• 7QC tools include Pareto analysis, cause-and-effect diagram, scatter diagram, etc.

• MTTR is the average time taken to repair a failed component or system.

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

• Types of breakdowns can include mech...read more
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Q1. Mechanical Rolling Mill Related question.
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Q1. Question related to quality
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