Ramco Industries Electrical Maintenance Supervisor Interview Questions and Answers for Experienced

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Technical round regarding ur subject

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Q1. What is Ohm's Law?
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Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Ohm's Law is represented by the formula V = IR, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• For example, if a circuit has ...read more
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Q2. What are Transformer protection?
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Transformer protection refers to the measures taken to ensure the safe operation of transformers and prevent damage.
• Overcurrent protection: Protects against excessive current flow.

• Overvoltage protection: Safeguards against high voltage levels.

• Overtemperature protection: Prevents overheating of the transformer.

• Differential protection: Detects internal faults by comparing input and output currents.

• Buchholz relay: Detects...read more
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Q3. Your computer knowledge?
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Proficient in computer hardware, software, and programming languages relevant to electrical engineering.
• Skilled in using CAD software for circuit design

• Familiar with programming languages like C, Python, and MATLAB for simulations

• Knowledge of microcontrollers and embedded systems programming

• Experience with PLC programming for automation systems
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Q4. What is motor protection?
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Motor protection is a system designed to prevent damage to motors from electrical faults or overloads.
• Motor protection devices include overload relays, thermal protectors, and circuit breakers.

• These devices monitor the current and temperature of the motor to prevent overheating and damage.

• Motor protection also involves proper grounding, insulation, and regular maintenance to ensure safe operation.

• Examples of motor prot...read more
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Q5. What is your hobbies?
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My hobbies include playing the guitar, hiking, and photography.
• Playing the guitar helps me relax and express my creativity.

• Hiking allows me to explore nature and stay active.

• Photography is a passion of mine, capturing moments and scenes in a unique way.
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Q1. Types of Gear box,what about conveyors?
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There are various types of gearboxes such as manual, automatic, CVT, DCT, etc. Conveyors can use gearboxes for power transmission.
• Types of gearboxes include manual, automatic, CVT, DCT, etc.

• Gearboxes are used for power transmission in conveyors.

• Conveyor gearboxes can be worm gearboxes, helical gearboxes, etc.
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Q2. Describe briefly about conveyors..
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Conveyors are mechanical devices used to transport materials from one location to another.
• Conveyors are used in various industries such as manufacturing, mining, and agriculture.

• They can be powered by electricity, gravity, or manually.

• Types of conveyors include belt, roller, screw, and chain conveyors.

• Conveyors can be customized to fit specific needs, such as incline or decline angles and speed.

• They are designed to inc...read more
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Q1. How does the Differential work.
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The differential is a device that allows the wheels on an axle to rotate at different speeds while still receiving power from the engine.
• Allows wheels on the same axle to rotate at different speeds

• Transfers power from the engine to the wheels

• Helps with cornering by allowing the outer wheel to rotate faster than the inner wheel

• Consists of gears that distribute power evenly to the wheels
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Q2. How to work Dumper Cooling system.
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The dumper cooling system is responsible for maintaining the optimal temperature of the dumper to prevent overheating.
• Regularly check the coolant levels and top up if necessary.

• Inspect the radiator for any leaks or damage.

• Clean the radiator fins to ensure proper airflow.

• Monitor the temperature gauge regularly while operating the dumper.

• If the dumper overheats, stop immediately and allow it to cool down before continuin
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Q3. How to work, work permit system during maintenance activities.
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Work permit system is a formal process to ensure safety during maintenance activities.
• Obtain necessary permits before starting any maintenance work.

• Identify potential hazards and implement necessary safety measures.

• Communicate with all involved parties about the work being done and safety precautions.

• Regularly review and update work permits as needed.

• Examples: hot work permit, confined space entry permit, electrical wo
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Q4. Which grade oil is used in Hydraulic system.
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The grade of oil used in a hydraulic system depends on the system's requirements and manufacturer recommendations.
• The grade of oil used in a hydraulic system is typically specified by the system manufacturer.

• Common grades of hydraulic oil include ISO VG 32, ISO VG 46, and ISO VG 68.

• The grade of oil chosen should meet the viscosity and performance requirements of the hydraulic system.

• Using the wrong grade of oil can lea...read more
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2 rounds of GD
Each one lasted from 5 - 10 min.

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Q2. What are your future goals.
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