JBS Enterprises Interview Questions and Answers

Q1. Shut down prosess
Ans. 
Shutting down a process involves terminating a program or application running on a computer system.
• Use task manager or command line to end the process

• Ensure all unsaved work is saved before shutting down

• Consider any dependencies or impact on other processes
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Q2. Breaker and transform se aata hai
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Q3. Shut downprosess
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Q1. General Questions to be asked
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Q2. What is Previous role
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Q3. Transmission line and substations
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Manegement Topic of running our company

Q1. Why Current transformer secondary is open?
Ans. 
Current transformer secondary is open to prevent damage to the transformer and connected equipment.
• An open secondary circuit prevents excessive current flow and protects the transformer from damage.

• It allows for safe measurement and monitoring of current without risk of short circuits.

• An open secondary also prevents damage to connected equipment by isolating it from high currents.

• In case of a fault or overload, an open...read more
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Q2. What is different between CT and PT?
Ans. 
CT and PT are both electrical devices used in power systems, but they have different functions and applications.
• CT stands for Current Transformer, while PT stands for Potential Transformer.

• CTs are used to measure and transform high currents into manageable levels for instruments and protective relays.

• PTs are used to measure and transform high voltages into low voltages for instruments and protective relays.

• CTs are typi...read more
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Q3. Draw the single line diagram for HY to LT Panel diagram?
Ans. 
The single line diagram for HY to LT Panel diagram is a visual representation of the electrical connections and components in the system.
• The single line diagram shows the flow of electrical power from the HY (High Voltage) side to the LT (Low Tension) side.

• It includes the main components such as transformers, circuit breakers, switches, and control devices.

• The diagram also indicates the interconnections between differe...read more
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Q4. How many circuit Breakers used in Electrical system?
Ans. 
The number of circuit breakers used in an electrical system varies depending on the size and complexity of the system.
• The number of circuit breakers used in an electrical system depends on factors such as the size of the system, the number of circuits, and the specific requirements of the building or facility.

• Residential electrical systems typically have a main circuit breaker at the electrical panel, along with indivi...read more
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Q1. How to manage in power failure situation?
Ans. 
In a power failure situation, effective management involves ensuring safety, communication, and contingency planning.
• Ensure the safety of employees and customers by providing emergency lighting and clear evacuation procedures.

• Maintain open lines of communication with staff, customers, and relevant authorities to provide updates and coordinate actions.

• Implement contingency plans such as backup power sources, alternative...read more
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Q2. What's the B check in generator?
Ans. 
B check in a generator refers to a comprehensive inspection and maintenance procedure to ensure its proper functioning.
• B check involves a thorough examination of the generator's components, including the engine, fuel system, cooling system, electrical system, and control panel.

• It includes tasks such as checking for leaks, inspecting belts and hoses, testing the battery, cleaning or replacing filters, and verifying prop...read more
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Q1. Protection in transformer
Ans. 
Transformers require protection to prevent damage from faults, overloads, and external disturbances.
• Overcurrent protection: Detects excessive current flow, triggering circuit breakers.

• Differential protection: Compares input and output currents to identify faults.

• Temperature monitoring: Uses sensors to prevent overheating, ensuring safe operation.

• Bushing protection: Monitors insulation integrity to prevent failures.

• Grou...read more
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Q2. What you do in substation
Ans. 
In a substation, I manage operations, ensure safety, and maintain equipment for efficient power distribution.
• Monitor and control electrical equipment to ensure optimal performance.

• Conduct regular inspections and maintenance of transformers and circuit breakers.

• Implement safety protocols to protect personnel and equipment.

• Coordinate with utility companies for power distribution and outages.

• Respond to emergencies and tro...read more
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Q3. Different type of cb
Ans. 
Circuit breakers (CB) protect electrical circuits from overloads and faults, ensuring safety and reliability.
• Miniature Circuit Breaker (MCB): Automatically switches off during overloads, e.g., in residential wiring.

• Molded Case Circuit Breaker (MCCB): Used for medium voltage applications, e.g., industrial machinery.

• Earth Leakage Circuit Breaker (ELCB): Protects against earth faults, e.g., in wet areas like bathrooms.

• Res...read more
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