Knest Manufacturers Mechanical Engg. Design Interview Questions and Answers

Q1. Automation related questions basic of PLC like AB and Siemens make plc,encoder,pannel min earthing voltage, scada,starter software
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Q2. Electrical maintenance related questions basics
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Q3. What Is MTTR and 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 component or system.

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

• MTTR is calculated as total downtime divided by the number of failures.

• MTBF is calculated as total uptime divided by the number of failures.

• For example, if a system has an MTTR of 2 hours and an MTBF of...read more
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Q4. Substation related questions basics
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Q5. What is data type,string in plc
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Data type string in PLC is used to store alphanumeric characters or text data.
• String data type is used to store text data in PLC programming.

• Strings can be used to store alphanumeric characters, words, sentences, etc.

• Example: STRING name := 'John Smith';
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Q1. 1) overhauling of maintenance. 2) what is the function of cooling tower.
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A cooling tower is a device used to remove heat from a building or industrial process.
• The function of a cooling tower is to cool down water or other fluids by extracting heat from them.

• Cooling towers are commonly used in HVAC systems, power plants, and industrial processes.

• They work by evaporating a small portion of the water, which removes heat and cools down the remaining water.

• The cooled water is then circulated bac...read more
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Q2. How to dismental of boiler feed pump
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To dismantle a boiler feed pump, follow these steps
• Isolate the pump from the power source and drain the water from the system

• Remove the coupling and motor from the pump

• Disconnect the suction and discharge piping from the pump

• Remove the bolts and nuts that hold the pump casing together

• Lift the casing off the pump and remove the impeller and shaft

• Inspect and clean all parts before reassembling or replacing
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Q1. Relevant to specific subject.
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Q2. What is your subject knowledge?
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I have a strong subject knowledge in my field of engineering.
• I have a deep understanding of the core concepts and principles of my field.

• I keep myself updated with the latest advancements and trends in my field.

• I have hands-on experience in implementing various engineering solutions.

• I have a good understanding of related fields such as mathematics, physics, and computer science.

• I have excellent problem-solving skills a...read more
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Q3. How much time you will stay ?
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Experience of experience to explain in detail.

Q1. Document & Annexure Acceptances.
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Q1. Negotiation round with candidate to take it low as usual HR do.
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Q1. What does it mean about engine stall & how it conduct??
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Engine stall refers to a sudden loss of power in an engine, often due to fuel or air supply issues.
• An engine stall occurs when the engine stops running unexpectedly.

• Common causes include fuel starvation, air intake issues, or electrical failures.

• For example, a car may stall if it runs out of fuel or if the fuel pump fails.

• Stalling can also happen in aircraft engines during takeoff or landing due to improper throttle ma...read more
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Q2. Hydraulic circuit.
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