Rallis India Instrument Engineer Interview Questions and Answers for Experienced

Percentage, Average, Ratio and proportion

Q1. Plant based questions
Add your answer
Q2. Process related questions
Add your answer
Q3. Pump related questions
Add your answer
Q4. Valve and fluid mechanics
Add your answer
Q5. General parameters
Add your answer

Q1. Self introduction.
Add your answer
Q2. What is cavitation.
Ans. 
Cavitation is the formation and collapse of vapor bubbles in a liquid due to pressure changes.
• Occurs in pumps, propellers, and other fluid machinery

• Can cause damage to equipment and decrease efficiency

• Can be prevented by proper design and maintenance

• Examples include erosion of propeller blades and damage to pump impellers
Answered by AI
Add your answer
Q3. Stream esterification.
Add your answer
Q4. What is Threshold limit value
Ans. 
Threshold limit value is the maximum concentration of a substance that a worker can be exposed to without adverse effects.
• TLV is a term used in occupational health and safety

• It is the maximum level of exposure to a hazardous substance

• TLVs are set by organizations like ACGIH and OSHA

• Examples of TLVs include 8-hour time-weighted averages for chemicals like benzene and carbon monoxide
Answered by AI
Add your answer
Q5. What flash point.
Ans. 
Flash point is the lowest temperature at which a substance can vaporize to form an ignitable mixture in air.
• Flash point is important in determining the safety of handling and storing flammable substances.

• It is measured using various methods such as Pensky-Martens closed cup tester and Abel closed cup tester.

• For example, gasoline has a flash point of -45°C, while diesel has a flash point of 52°C.

• A substance with a low f...read more
Answered by AI
Add your answer
Q6. Co-Current and Co- Counter Flow
Add your answer
Q7. Bernoulli machanism
Add your answer

Q1. Related to process
Add your answer
Q2. Like process reaction safety questions
Add your answer
Q3. LEL UEL THRESHOLD VALUE
Add your answer
Q4. Related to reactors pumps
Add your answer
Q5. Related to dcs quation if you have experience in dcs
Add your answer
Q6. What is dcs and it’s functioning
Ans. 
DCS stands for Distributed Control System, which is a computerized control system used to control and monitor industrial processes.
• DCS is used in industries such as oil and gas, power generation, and manufacturing.

• It consists of multiple control units distributed throughout a plant or facility.

• DCS allows for centralized control and monitoring of various processes, making it easier to manage complex systems.

• It typically...read more
Answered by AI
View 2 more answers
Q7. Process parameters and related to its
Add your answer

Q1. About operations and manufacturing
Add your answer
Q2. Safety for chemical all process
Ans. 
Ensuring safety in chemical processes is crucial for preventing accidents and protecting workers.
• Implementing proper training programs for employees on handling chemicals safely

• Regularly inspecting equipment and ensuring it is properly maintained

• Providing appropriate personal protective equipment (PPE) for workers

• Following strict protocols for handling, storing, and disposing of chemicals

• Having emergency response plans
Answered by AI
View 3 more answers

Q1. Unit process, unit operation, safety,
View 1 more answer

Q1. Salary discussion,bbs.
Add your answer

Q1. About confined space entry
Add your answer
Q2. Equipment handling
Add your answer

Q1. Salary discussion
Add your answer

Q1. About vaccum system, ejector, pump, distillation column part structure and its parts etc.
Add your answer