APOLLO POWER SYSTEMS Interview Questions, Process, and Tips

Q1. What is an Uninterruptible Power Supply (UPS), and what are its functions?
Ans. 
A UPS is a device that provides emergency power to a load when the input power source fails.
• UPS ensures continuous power supply during power outages or fluctuations.

• It protects sensitive electronic equipment from damage due to sudden power loss.

• UPS can be used in data centers, hospitals, and critical infrastructure to prevent data loss or downtime.

• Types of UPS include offline, line-interactive, and online double-conver
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Q2. What is a transformer and how does it work?
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil is connected to a power source, creating a magnetic field when current flows through it

• Magnetic field induces a voltage in the secondary coil, transferring energy to the load connected to it

• Transformer can st...read more
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Q3. Explain about safety PPE and uses
Ans. 
Safety PPE stands for Personal Protective Equipment and includes items like helmets, gloves, goggles, and masks to protect workers from hazards.
• PPE is essential for protecting workers from various hazards in the workplace.

• Examples of PPE include helmets, gloves, goggles, masks, earplugs, and safety shoes.

• PPE should be selected based on the specific hazards present in the work environment.

• Proper training on how to use a...read more
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Q1. What is your previous experience, and what is your current role?
Ans. 
I have 5 years of experience as a Shift Engineer in a manufacturing plant.
• Previous experience includes troubleshooting and maintenance of industrial equipment.

• Current role involves overseeing shift operations, coordinating with maintenance team, and ensuring production targets are met.

• Experience in implementing preventive maintenance schedules to minimize downtime.

• Proficient in reading technical drawings and schematics...read more
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Q2. What is your current salary, and what are your salary expectations?
Ans. 
I am currently earning $70,000 annually. I am looking for a salary in the range of $80,000 to $90,000 for this position.
• Current salary is $70,000 annually

• Salary expectations are in the range of $80,000 to $90,000

• Open to negotiation based on benefits and responsibilities
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Q2. What is single phase and 3 phase
Ans. 
Single phase has one alternating current waveform, while 3 phase has three alternating current waveforms.
• Single phase has two wires, while 3 phase has three or four wires

• Single phase is used for small household appliances, while 3 phase is used for heavy machinery

• Single phase has a lower power output compared to 3 phase

• Examples of single phase appliances include fans, refrigerators, and air conditioners, while examples...read more
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Q3. What is socket points
Ans. 
Socket points are electrical outlets where plugs can be inserted to connect to a power source.
• Socket points are also known as electrical receptacles or power outlets.

• They are typically found on walls and provide a safe and convenient way to access electricity.

• Different countries may have different types of socket points, such as the Type A, B, C, D, E, F, G, H, I, J, K, L, M, and N.

• Examples of devices that can be plugg...read more
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Q4. What is eart value and phase netrual value.
Ans. 
Earth value refers to the potential difference between the earth and a point in an electrical circuit. Phase neutral value refers to the potential difference between the phase and neutral wires in a circuit.
• Earth value is also known as ground potential rise (GPR) and is important in ensuring safety in electrical systems.

• Phase neutral value is important in determining the voltage of a circuit and ensuring proper functio...read more
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