Meghalaya Cements Instrument Engineer Interview Questions and Answers

Q1. Electrical safety
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Q2. Packer weight variation
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Q3. Sap knowledge pr and po process.
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Q4. VFD analysis and troubleshooting
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Q5. Basic knowledge of simens plc
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Q1. Types of sensor used in plant
Ans. 
Various types of sensors are used in plants for monitoring and control purposes.
• Temperature sensors (thermocouples, RTDs, thermistors)

• Pressure sensors (piezoelectric, capacitive, strain gauge)

• Level sensors (ultrasonic, radar, capacitance)

• Flow sensors (magnetic, vortex, ultrasonic)

• Gas sensors (infrared, electrochemical, catalytic)

• Humidity sensors (capacitive, resistive, thermal)

• pH sensors (glass, ISFET, differential)

• Con...read more
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Q1. Tell me something about your self
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Q2. Working principle of mass flow meter
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Mass flow meter measures the mass flow rate of a fluid in a pipe or duct.
• Works on the principle of Coriolis effect or thermal dispersion

• Fluid flows through a vibrating tube or a heated element

• Measures the change in frequency or temperature to determine mass flow rate

• Used in industries like chemical, food and beverage, and oil and gas

• Examples include Coriolis mass flow meter and thermal mass flow meter
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Q3. Troubleshooting of load cell
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Load cell troubleshooting involves checking wiring, calibration, and environmental factors.
• Check wiring connections for any loose or damaged wires

• Verify calibration using a known weight or standard calibration weight

• Ensure the load cell is not exposed to extreme temperatures or vibrations

• Inspect the load cell for any physical damage or wear

• Check the amplifier or signal conditioner for any issues

• Consider environmental f...read more
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Q4. Types and make Of PLCs
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PLCs are programmable logic controllers used in automation. Types include modular, compact, and rack-mounted PLCs.
• Modular PLCs are flexible and can be customized to fit specific needs.

• Compact PLCs are smaller and more cost-effective, but have limited I/O options.

• Rack-mounted PLCs are designed for larger systems and have high I/O capacity.

• Some popular PLC brands include Siemens, Allen-Bradley, and Mitsubishi.

• PLCs can al...read more
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A discussion with conduct HR department from Chennai they had been asked to me number of questions about to surveying work. and other mine working related.

Q1. Why do you want to be surveyor while you're having mining engineering degree and dgms 2nd class certificate.
Ans. I passion to do work this and having internet for this work.
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Q2. What's your goal , what do you want to become In your life.
Ans. I want do work in mining engineering field, where I get good platform to be built success full career.
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Q3. What do you thik right now,
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Q1. Advantages of Schottky Diode.
Ans. 
Schottky diodes have low forward voltage drop, fast switching speed, and low reverse recovery time.
• Low forward voltage drop reduces power loss and improves efficiency.

• Fast switching speed makes them suitable for high-frequency applications.

• Low reverse recovery time reduces switching losses and improves efficiency.

• Schottky diodes are commonly used in power supplies, voltage clamping circuits, and RF applications.
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Q2. Description of Lenz's Law.
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Lenz's Law states that the direction of an induced current in a conductor is always such that it opposes the change in magnetic field that produced it.
• When a magnet is moved towards a coil, a current is induced in the coil in such a direction that it opposes the motion of the magnet.

• When a magnet is moved away from a coil, a current is induced in the coil in such a direction that it opposes the change in magnetic field...read more
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Basic Apptitude and Logical Reasoning Questions

Q1. Share something about your Family.
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Q2. Any Leadership activity carried out during graduation.
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Q1. Basic questions on Control System
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Q2. Basic Questions on Machines
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Q3. Working of PLC and Programming
Ans. 
PLC is a programmable device used to control industrial processes. Programming involves creating logic using ladder diagrams or code.
• PLC stands for Programmable Logic Controller

• It is used to control and automate industrial processes

• Programming involves creating logic using ladder diagrams or code

• PLC programming languages include ladder logic, function block diagrams, and structured text

• PLCs are used in various industri...read more
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