Willowood Chemicals Diploma Trainee Engineer Interview Questions and Answers

Q1. What is bumping clearance in Reciprocating compressor
Ans. 
Bumping clearance in a reciprocating compressor is the minimum distance between the piston and the cylinder head at the top dead center.
• Bumping clearance is crucial to prevent contact between the piston and the cylinder head during operation.

• It is necessary to allow for thermal expansion of the components and to avoid damage.

• Proper bumping clearance ensures efficient operation and prolongs the lifespan of the compresso...read more
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Q2. What is mechanical seal
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A mechanical seal is a device that helps prevent leakage between two moving or stationary parts in a machine.
• Used in pumps, compressors, and other rotating equipment

• Consists of two main parts: stationary seal face and rotating seal face

• Common types include cartridge seals, component seals, and split seals
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Q3. Why pressure vessels made in cylindrical shape or spherical shape
Ans. 
Pressure vessels are made in cylindrical or spherical shapes for structural integrity, ease of fabrication, and efficient use of material.
• Cylindrical shape provides uniform stress distribution and is easier to fabricate compared to other shapes.

• Spherical shape can withstand higher internal pressure due to uniform stress distribution in all directions.

• Cylindrical shape is commonly used for horizontal pressure vessels li...read more
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Q4. What is basic difference between ASME codes and API codes
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ASME codes are primarily used for pressure vessels and piping systems, while API codes are focused on the oil and gas industry.
• ASME codes are more general and cover a wide range of industries, while API codes are specific to the oil and gas industry.

• ASME codes are developed by the American Society of Mechanical Engineers, while API codes are developed by the American Petroleum Institute.

• ASME codes focus on design, cons...read more
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Q5. What are the micro alloys elements added to alloy steel
Ans. 
Micro alloy elements added to alloy steel improve strength, toughness, and hardenability.
• Common micro alloy elements include vanadium, niobium, titanium, and boron.

• These elements help refine the grain structure of the steel, resulting in improved mechanical properties.

• Micro alloying also allows for the use of lower carbon content, reducing the risk of cracking during heat treatment.
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Q1. Work experience
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Q2. Salary expectation
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Q1. Production process
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Q2. Production plan
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A production plan outlines the strategy for manufacturing goods efficiently and effectively.
• Define production goals: Set clear, measurable objectives for output and quality.

• Assess resources: Evaluate available materials, labor, and machinery to meet production needs.

• Create a timeline: Develop a schedule that aligns production activities with demand forecasts.

• Implement quality control: Establish procedures to ensure pro...read more
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Q1. They asked about technical knowledge and industrial training experience
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Q1. Explain the process of the product
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The product process involves designing, prototyping, testing, manufacturing, and quality control.
• The design phase involves creating a blueprint of the product.

• Prototyping involves creating a working model of the product.

• Testing involves evaluating the product's performance and identifying any issues.

• Manufacturing involves producing the product on a large scale.

• Quality control involves ensuring that the product meets th...read more
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Q2. Process parameters
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Q3. Basics of thermodynamics law
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Normal basic engineering questions

Q1. Technical questions
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Q2. Type of distillation and diffrance
Ans. 
Distillation is a process of separating components in a liquid mixture based on their boiling points. Types include simple, fractional, and steam distillation.
• Distillation is a separation process used to purify liquids by heating and cooling them to separate components based on their boiling points.

• Simple distillation is used for separating components with a large difference in boiling points, while fractional distilla...read more
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Q1. Question asking regarding pumps &reactor mech.seal
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Q1. Sallary discussion
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