Deccan Fine Chemicals Interview Questions, Process, and Tips

Questions regarding chemical engineering subjects

Q1. Technical interview regarding every topic which come to their mind. Tests the knowledge very much.
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Q1. Explained regarding policies and duties clearly. Some general questions regarding candidate's acceptance and relocation.
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Q1. Mechanical seal
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Q2. Glasslined equipments
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Q3. IMS documents, 5s, PMS
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Q1. Basic about pump and valves
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Q2. Mainly about distillation
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Q1. What is the hydroquinone structure
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Hydroquinone is a chemical compound with the formula C6H4(OH)2, commonly used in skincare products for its skin-lightening properties.
• Chemical formula: C6H4(OH)2

• Consists of two hydroxyl groups attached to a benzene ring

• Used in skincare products to lighten dark spots and hyperpigmentation
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Q2. Waht is the sendmeya reaction
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Q1. What is the seandmeya reaction
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The Seandmeya reaction is a chemical reaction used in organic chemistry to synthesize aldehydes from alkynes.
• The Seandmeya reaction involves the hydroboration-oxidation of an alkyne to form an enol intermediate, which tautomerizes to the aldehyde.

• The reaction is often used in the synthesis of complex molecules and natural products.

• An example of the Seandmeya reaction is the conversion of 1-octyne to octanal using BH3 a...read more
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Q1. When will you get married
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Q2. When get the job
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Current affairs topics are generally given in GD.

Q1. Detailed technical interview is taken with emphasis on heat transfer and mass transfer
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Q1. Typical HR question is asked on future goals and your expectation from company
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Q1. Critical speed of ball mill
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Critical speed of ball mill is the speed at which the centrifugal forces equal gravitational forces at the mill shell's inside surface.
• Critical speed is calculated by the formula: Nc = 1/(2*pi*sqrt(D/g)) where Nc is the critical speed, D is the diameter of the mill in meters, and g is the acceleration due to gravity (9.81 m/s^2).

• At critical speed, the grinding media in the mill starts rotating with the mill shell and n...read more
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Q2. Distillation column design principles
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Distillation column design principles involve understanding the separation process, heat transfer, and fluid dynamics.
• Understanding the separation process is crucial for designing an efficient distillation column.

• Consider the heat transfer requirements to ensure proper temperature control within the column.

• Fluid dynamics play a key role in determining the flow patterns and efficiency of the distillation process.
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Q3. Heat exchanger area calculation
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Q4. Square and rectangular pitch
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Q5. Bernouli's law and friction factor
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