Jai Balaji Group Safety Engineer Interview Questions and Answers

Q1. What is proxy? what is smps? what is encoder? Star delta working
Ans. 
Proxy is an intermediary server that acts as a gateway between clients and servers. SMPS is a power supply unit that converts AC to DC. Encoder is a device that converts motion into digital signals. Star delta is a method of starting three-phase motors.
• Proxy helps in hiding the identity of clients and servers.

• SMPS is commonly used in computers and other electronic devices.

• Encoders are used in robotics, automation, and ...read more
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What you prepared before starting the project.

Q1. Salary discussion.
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Q1. Job related question??
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Q2. Jobe role in previous company??
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Q1. Difference between pressure relief valve and pressure reducing valve.
Ans. 
Pressure relief valve releases excess pressure to prevent damage, while pressure reducing valve reduces pressure to a desired level.
• Pressure relief valve is used to protect equipment from overpressure by releasing excess pressure to the atmosphere.

• Pressure reducing valve is used to reduce the pressure of a fluid to a desired level in a system.

• Pressure relief valves are typically found in systems where pressure buildup ...read more
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Q2. Advantage of hyd piston pump over fixed displacement vane pump.
Ans. 
Hydraulic piston pumps offer higher efficiency, variable flow rates, and better control compared to fixed displacement vane pumps.
• Hydraulic piston pumps have higher efficiency due to their ability to vary flow rates based on demand, reducing energy consumption.

• Piston pumps provide better control over fluid flow and pressure, making them suitable for applications requiring precise operation.

• Piston pumps are more durable...read more
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Q1. What is your working area , about company
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Q1. Iron carbon diagram steel grades
Ans. 
Iron carbon diagram shows the relationship between carbon content and properties of steel.
• The diagram helps in understanding the microstructure of steel.

• It shows the different phases of steel at different carbon concentrations.

• Low carbon steel has less than 0.3% carbon, while high carbon steel has more than 0.6% carbon.

• Medium carbon steel has a carbon content between 0.3% and 0.6%.

• The diagram also helps in determining ...read more
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Q1. Normal interview not very tough casual questions about your profile
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Q1. Related to job profile.
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Q1. Can we use TIA Portal in S7-300 cpu?
Ans. 
No, TIA Portal is not compatible with S7-300 CPU.
• TIA Portal is designed for newer Siemens PLCs like S7-1200 and S7-1500, not S7-300.

• For S7-300 CPUs, Step 7 software should be used for programming.

• TIA Portal offers advanced features like integrated safety, motion control, and HMI design.

• S7-300 CPUs are older models with limited capabilities compared to newer PLCs.
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Q2. Difference between encoder and resolver?
Ans. 
Encoder provides digital output while resolver provides analog output.
• Encoder converts mechanical motion into digital signals, resolver converts mechanical motion into analog signals.

• Encoder is more accurate and provides higher resolution compared to resolver.

• Resolver is more robust and reliable in harsh environments due to lack of sensitive electronics.

• Examples: Encoder - optical encoder, magnetic encoder. Resolver -
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Q1. Salary negotiations...
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Q1. Basic questions like Current Salary Expected Salary, Why you want to leave.
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Q1. Basic Domain questions
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Q1. HOD's basic technical questions
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Q1. Salary Negotiation ,
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