Deccan Fine Chemicals Interview Questions and Answers

Mechanical seals are devices that help prevent leakage between two surfaces in relative motion.

• Mechanical seals are commonly used in pumps, compressors, and other rotating equipment to prevent leakage of fluids.

• They consist of two main parts - a stationary element and a rotating element, which are held together by tension to create a seal.

• The seal faces are typically made of materials like carbon, ceramic, or tungsten ...read more

The cost of bearing parts can vary depending on the type, size, and quality of the bearing.

• Bearing parts can range from a few dollars to hundreds of dollars, depending on the specific requirements.

• Factors such as material, size, precision, and brand can all impact the cost of bearing parts.

• For example, a standard ball bearing for a small appliance may cost around $5, while a high-precision ceramic bearing for a special...read more

Predictive maintenance involves using data and analytics to predict when equipment failure may occur, allowing for timely maintenance to prevent breakdowns.

• Uses data and analytics to predict when equipment failure may occur

• Helps in scheduling maintenance activities before breakdowns occur

• Reduces downtime and increases equipment reliability

• Examples include vibration analysis, oil analysis, and thermography

ISO 28721-1.2019 is a code used for establishing a framework for implementing reliability-centered maintenance (RCM) in engineering.

• ISO 28721-1.2019 provides guidelines for developing maintenance strategies based on reliability-centered maintenance principles.

• It helps in identifying the most effective maintenance tasks to ensure equipment reliability and safety.

• The code outlines the process of analyzing potential failu...read more

PRA (Probabilistic Risk Assessment) evaluates risks in processes to enhance safety and reliability.

• Identify hazards: Determine potential hazards in the process, such as chemical spills or equipment failures.

• Analyze scenarios: Use techniques like Fault Tree Analysis (FTA) or Event Tree Analysis (ETA) to assess failure scenarios.

• Quantify risks: Calculate the likelihood and consequences of identified scenarios to prioriti...read more

Glass lined reactor shaft run out refers to the misalignment or wobbling of the reactor shaft, affecting performance and safety.

• Run out can lead to uneven wear on the glass lining, increasing the risk of damage.

• Regular maintenance checks can help identify shaft run out early.

• Using precision alignment tools can minimize run out during installation.

• Example: A reactor with a 0.5 mm run out may cause significant operationa...read more

The spark test value for glass lined reactors ensures electrical safety and integrity of the lining.

• The spark test typically involves applying a high voltage (e.g., 5000V) to check for insulation failure.

• A successful test indicates that the glass lining is intact and can prevent contamination.

• If the test fails, it may indicate cracks or defects in the glass lining, requiring repair or replacement.

• Regular spark testing ...read more

Number of theoretical plates can be calculated using the plate theory or the distillation column design equation.

• The plate theory method involves using the equilibrium data for the components being separated and the operating conditions of the column.

• The distillation column design equation method involves using the height equivalent to a theoretical plate (HETP) and the total number of plates in the column.

• Example: For...read more

My favorite subject is Chemical Engineering, as it combines principles of chemistry, physics, and mathematics to solve real-world problems.

• Chemical Engineering involves designing processes for large-scale production, such as creating pharmaceuticals.

• It requires a strong understanding of thermodynamics, which is crucial for energy efficiency in processes.

• I enjoy the challenge of optimizing processes to reduce waste and ...read more

Practical and theoretical knowledge are interconnected, enhancing understanding and application in engineering processes.

• Theoretical knowledge provides the foundational principles, such as thermodynamics in process engineering.

• Practical knowledge involves hands-on experience, like operating machinery or conducting experiments.

• Both types of knowledge are essential for problem-solving; for example, applying theoretical c...read more

I am here to leverage my skills in process optimization and contribute to innovative engineering solutions.

• I have a strong background in chemical engineering, which equips me to analyze and improve processes effectively.

• In my previous role, I successfully reduced production costs by 15% through process optimization.

• I am passionate about sustainability and have implemented eco-friendly practices in past projects.

• I thriv...read more