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posted on 14 Feb 2023
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 2 interview rounds.
This interview question is about VAV, HVAC, AHU, refrigeration cycle, and types of chillers.
VAV stands for Variable Air Volume, HVAC stands for Heating, Ventilation, and Air Conditioning, and AHU stands for Air Handling Unit.
The refrigeration cycle is a process that removes heat from a low-temperature area and transfers it to a high-temperature area.
Types of chillers include air-cooled chillers, water-cooled chillers,
There are several types of compressors used in refrigeration and air conditioning systems.
Reciprocating compressors use pistons to compress refrigerant gas.
Rotary compressors use rotating blades or vanes to compress refrigerant gas.
Scroll compressors use two spiral-shaped scrolls to compress refrigerant gas.
Centrifugal compressors use a high-speed impeller to compress refrigerant gas.
Screw compressors use two interlock...
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I was interviewed in Apr 2017.
My favourite sportsperson is Serena Williams.
Serena Williams is a professional tennis player
She has won numerous Grand Slam titles
She is known for her powerful serve and aggressive playing style
Crude oil is separated from water through a process called oil-water separation.
Oil-water separation is achieved by using various techniques such as gravity separation, centrifugation, and filtration.
Gravity separation involves allowing the mixture of crude oil and water to settle, with the oil rising to the top due to its lower density.
Centrifugation utilizes the centrifugal force to separate the oil and water by spin...
I was interviewed in Apr 2017.
In case of an emergency in production plant, I would follow the emergency protocol and take necessary actions to ensure safety.
Immediately alert the emergency response team and follow the established emergency protocol
Evacuate the affected area and ensure all employees are accounted for
Assess the situation and take necessary actions to contain the emergency
Communicate with management and stakeholders to keep them infor...
Hazards in the plant and their control
Chemical hazards: Proper storage and handling of hazardous chemicals
Electrical hazards: Regular inspection and maintenance of electrical equipment
Mechanical hazards: Implementation of safety guards and procedures
Fire hazards: Installation of fire detection and suppression systems
Ergonomic hazards: Providing ergonomic workstations and equipment
Noise hazards: Use of hearing protectio
Permits required for production engineering
Building permits for construction and modification of production facilities
Environmental permits for compliance with regulations on emissions and waste management
Operating permits for the operation of specific equipment or processes
Safety permits for ensuring workplace safety and adherence to safety standards
Export permits for exporting products to other countries
Import permit...
I applied via Approached by Company and was interviewed before Jul 2023. There were 2 interview rounds.
ONGC (Oil and Natural Gas Corporation) is a multinational oil and gas company headquartered in India.
ONGC is one of the largest oil and gas exploration and production companies in India.
It is a public sector undertaking (PSU) under the Ministry of Petroleum and Natural Gas.
ONGC has operations both in India and abroad, including countries like Russia, Vietnam, and Brazil.
The company is involved in exploration, productio...
posted on 3 May 2022
I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.
Various types of valves are used in chemical industries for different purposes.
Gate valves are commonly used in chemical industries for on/off control of flow.
Globe valves are used for regulating flow and controlling pressure.
Ball valves are suitable for high-pressure applications and provide tight shut-off.
Butterfly valves are used for throttling and controlling flow.
Diaphragm valves are used for handling corrosive an...
posted on 26 May 2018
posted on 8 Jun 2017
I was interviewed before Jun 2016.
posted on 8 Dec 2021
I applied via Recruitment Consultant and was interviewed before Dec 2020. There were 3 interview rounds.
A compressor with two stages of reciprocating motion.
Two-stage reciprocating compressors have two cylinders that compress the air twice.
The first stage compresses the air and sends it to the second stage for further compression.
This type of compressor is commonly used in industrial applications such as refrigeration and air conditioning.
The two-stage design allows for higher efficiency and greater pressure output compa
I applied via Naukri.com and was interviewed in Nov 2019. There were 3 interview rounds.
RS 485 is a multi-point communication standard while RS 232 is a point-to-point communication standard.
RS 485 supports up to 32 devices on a single bus while RS 232 only supports two devices.
RS 485 uses differential signaling for noise immunity while RS 232 uses single-ended signaling.
RS 485 can transmit data over longer distances than RS 232.
RS 485 is commonly used in industrial automation and control systems while RS
Protocol is a set of rules and guidelines that govern the communication between devices or systems.
Protocols ensure that devices or systems can communicate with each other effectively and efficiently.
They define the format, timing, sequencing, and error checking of messages exchanged between devices or systems.
Examples of protocols include TCP/IP, HTTP, FTP, and SMTP.
Protocols can be implemented in hardware, software, ...
PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
PLC is used in industrial automation to control machinery and processes.
It is programmed using ladder logic or other programming languages.
PLC can be used in various applications such as manufacturing, transportation, and energy.
Examples of PLC brands include Siemens, Allen-Bradley, and Mitsubishi.
P...
There are several types of PLCs, including modular, compact, rack-mounted, and software-based PLCs.
Modular PLCs are designed to be expandable and customizable.
Compact PLCs are smaller and more cost-effective than modular PLCs.
Rack-mounted PLCs are designed to be mounted in a standard equipment rack.
Software-based PLCs run on a computer and use specialized software to emulate a physical PLC.
Other types of PLCs include s...
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