Blue Star Electrical Maintenance Engineer Interview Questions and Answers

Q1. What is the process of Refrigerant
Ans. 
Refrigerant is a substance used in a heat pump or refrigeration cycle to transfer heat between the indoors and outdoors.
• Refrigerant absorbs heat from the indoor air and releases it outside

• It changes from a liquid to a gas and back again in the refrigeration cycle

• Common refrigerants include R-410A, R-134a, and R-22

• Refrigerants should be handled carefully due to their potential environmental impact
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Q2. What is plc and how to work
Ans. 
PLC stands for Programmable Logic Controller, used in industrial automation to control machinery and processes.
• PLC is a digital computer used to automate electromechanical processes.

• It uses a programmable memory to store instructions and execute specific functions.

• PLCs are commonly used in manufacturing plants, assembly lines, and other industrial settings.

• They can be programmed using ladder logic, function block diagr...read more
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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 usually measured in hours or days, while MTBF is also measured in hours or days.

• MTTR is an important metric for assessing maintenance efficiency, while MTBF is used to predict the reliability of...read more
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Q4. Defferent wetbeen MTTR and MTBF
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Q1. Round 1 of the program means the funding allocated under the program with moneys appropriated durin
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Q1. Chapter 1 of the class 2 maths syllabus is on 'What is Long and What is Roun
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Q1. - ROUND 3 END OF DAZE 2010; 2. • 42 questions •
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Q1. _ 1 1 Present Simple - Present Continuous 2 bys 5 watches 8 dries 3 cares 5 calls
Ans. 
The question is testing the candidate's knowledge of present simple and present continuous tenses.
• Present Simple is used for general truths, habits, and routines.

• Present Continuous is used for actions happening now or around the present moment.

• Examples: 'He cares for the equipment regularly.' (Present Simple) 'He is currently calling the supplier for spare parts.' (Present Continuous)
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Q1. About technical knowledge
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Q1. Personal interview
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Q1. Tell me about yourself something
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Q1. About plc programming
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Q1. I know about electrical Engineering knowledge subjects ways
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Q2. Measurements subject
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Q3. Machine subject
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Q4. Cuircit subject
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Q1. This my time so no experience
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This my first time so no idea

Group discussion i know about

Q1. Witch location and state
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Q2. Witch works and company
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Q3. Haridwar uttrakhand
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Q4. Maintenance engineer related
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Q1. SMT mounting and equipment maintenance related questions ask on interview
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