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Oriental Carbon & Chemicals
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I applied via Recruitment Consultant and was interviewed in Dec 2021. There were 3 interview rounds.
Vector group of transformers is used to determine the phase difference and voltage ratio between primary and secondary windings.
Vector group helps in determining the correct connection of transformers in parallel.
It helps in identifying the phase angle difference between primary and secondary windings.
It helps in determining the voltage ratio between primary and secondary windings.
Vector group is important for power sy...
IR value is a measure of insulation resistance in transformers and motors.
IR value indicates the condition of insulation in transformers and motors.
It is measured in megaohms (MΩ) using a megger.
A high IR value indicates good insulation while a low value indicates poor insulation.
Regular testing of IR value is important to prevent breakdowns and ensure safety.
For example, a transformer with an IR value of less than 1 M...
Switchgear selection for a 75 kW motor depends on various factors such as voltage, current, starting method, and protection requirements.
Consider the voltage and current rating of the motor
Choose the appropriate starting method such as DOL, star-delta, soft starter, or VFD
Select the switchgear with suitable protection features such as overload, short circuit, and earth fault protection
Ensure compatibility with the exis...
Designing a 100 KVR capacitor for 415 volts.
Calculate the required capacitance using the formula C = I / (2 * pi * f * V)
Select a suitable type of capacitor based on the application and voltage rating
Ensure proper installation and maintenance to prevent failure or damage
Consider safety precautions when working with high voltage capacitors
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posted on 1 Mar 2025
I was interviewed in Sep 2024.
The machine capacity refers to the maximum amount of work or output that a machine can handle within a given time frame.
Machine capacity can be measured in terms of units produced per hour, pieces processed per minute, or any other relevant metric.
Factors that can affect machine capacity include machine speed, efficiency, maintenance, and downtime.
For example, a CNC machine may have a capacity of producing 100 units pe...
posted on 18 Oct 2024
I applied via Approached by Company and was interviewed before Oct 2023. There was 1 interview round.
Carbon black is a fine black powder used as a pigment and reinforcing agent in rubber and plastic products.
Carbon black is produced by incomplete combustion of heavy petroleum products.
It is used in tires, ink, paint, and various other products for its coloring and reinforcing properties.
The process involves burning hydrocarbons in a limited air supply to produce carbon black particles.
The particles are then collected ...
posted on 28 Jul 2021
posted on 11 Feb 2023
I applied via Campus Placement and was interviewed before Feb 2022. There were 4 interview rounds.
General questions are comes in the test not difficult type
VFD is a variable frequency drive used to control the speed of an electric motor. Softstarter is a device used to reduce the starting current of a motor. Synchronization is the process of matching the speed and phase of two or more motors.
VFD is used to save energy and reduce wear and tear on motors by controlling the speed of the motor.
Softstarter is used to reduce the starting current of a motor, which can help preve...
I want to join PCBL because of its strong reputation in the industry and its commitment to innovation and growth.
PCBL has a strong reputation in the industry, which would provide me with valuable experience and opportunities for growth.
I am impressed by PCBL's commitment to innovation and its focus on staying ahead of industry trends.
PCBL's company culture aligns with my values and I believe I would thrive in such an e...
posted on 4 Oct 2023
I applied via Referral and was interviewed before Oct 2022. There were 2 interview rounds.
To change an oil pump, you need to drain the oil, remove the old pump, install the new pump, and refill with fresh oil.
Drain the oil from the engine
Remove the old oil pump
Install the new oil pump
Refill the engine with fresh oil
posted on 17 Oct 2023
I applied via Campus Placement and was interviewed before Sep 2022. There were 4 interview rounds.
About Work Culture and how is wfh affecting people
Duration of the aptitude test was around 30 mins
GMAW stands for Gas Metal Arc Welding, a welding process that uses a continuous solid wire electrode and shielding gas to create a weld.
Uses a continuous solid wire electrode
Requires a shielding gas to protect the weld from atmospheric contamination
Commonly used in industries like automotive, construction, and manufacturing
MIG stands for Metal Inert Gas welding, while MAG stands for Metal Active Gas welding. The main difference lies in the type of shielding gas used.
MIG welding uses inert gases like argon or helium to shield the weld pool from atmospheric contamination, while MAG welding uses active gases like carbon dioxide or a mixture of gases.
MIG welding is typically used for non-ferrous metals like aluminum, while MAG welding is mor...
WPS Procee is a welding procedure specification that outlines the details of a specific welding process.
WPS Procee includes information such as welding materials, welding parameters, preheat and post-weld heat treatment requirements.
It is essential for ensuring consistency and quality in welding operations.
WPS Procee is often required in industries such as construction, manufacturing, and oil & gas.
Example: A WPS Proce...
PQR Process is a procedure used in welding to qualify the welding procedure specification.
PQR stands for Procedure Qualification Record.
It involves testing and documenting the variables used during the welding process.
The purpose is to ensure that the welding procedure will produce the desired quality of welds.
PQR Process is essential for ensuring the integrity and strength of welded joints.
Examples of variables tested...
Experienced Senior Engineer with a strong background in software development and project management.
Over 10 years of experience in software engineering
Proficient in multiple programming languages such as Java, Python, and C++
Led successful projects from conception to completion, resulting in increased efficiency and cost savings
Strong problem-solving skills and ability to work well in a team environment
Seeking new challenges and opportunities for growth.
Looking for a new environment to learn and develop new skills.
Interested in working on different projects to broaden my experience.
Seeking a company with better career advancement opportunities.
Want to explore new technologies and methodologies in the industry.
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