Inventys Research Interview Questions and Answers

General aptitude question and reasoning

Q1. Introduction of yourself and experience and projects
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Q1. Questions related to your respective field
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Q1. What is ph of water
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The pH of pure water at 25°C is 7, indicating neutrality on the pH scale, which ranges from 0 to 14.
• pH scale ranges from 0 (acidic) to 14 (basic), with 7 being neutral.

• Pure water has a pH of 7 at 25°C, but can vary with temperature.

• Acidic solutions have pH < 7 (e.g., lemon juice ~ 2), while basic solutions have pH > 7 (e.g., baking soda ~ 9).

• Water can act as both an acid and a base, demonstrating amphoteric prope...read more
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Q2. What is carrier gas in gc
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A carrier gas in gas chromatography transports sample vapors through the column for separation and analysis.
• Common carrier gases include helium, nitrogen, and hydrogen.

• Helium is preferred for its inertness and efficiency in separating compounds.

• Nitrogen is cost-effective but may lead to longer analysis times.

• Hydrogen offers high efficiency but requires careful handling due to flammability.
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Q1. About your self and present company
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Q2. Salary required and in hand
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Q1. Your introduction, family background, educational status, verbal skill etc.
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Q1. Knowledge about instruments, new technologies, instrument calibration, quality documentation, instrument safety installation, knowledge about DCS, controlling logics, knowledge about PLC, HMI etc.
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Q1. What is Distillation
Ans. 
Distillation is a process of separating components of a mixture based on their boiling points.
• It involves heating the mixture to vaporize the component with the lowest boiling point.

• The vapor is then condensed and collected as a separate liquid.

• This process is commonly used in the production of alcoholic beverages, petroleum refining, and purification of water.

• Fractional distillation is a variation of distillation that...read more
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Q2. Convert from kg to gm
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To convert from kg to gm, multiply the value by 1000.
• Multiply the value in kg by 1000 to get the value in gm.

• 1 kg = 1000 gm

• Example: 2 kg = 2000 gm
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Q3. Convert from Meter to centimeter
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To convert from meter to centimeter, multiply the value by 100.
• Multiply the value in meters by 100 to get the value in centimeters.

• 1 meter = 100 centimeters

• Example: 2 meters = 200 centimeters
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Q4. What is pump ? Types of pump, how it works
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A pump is a mechanical device used to move fluids from one place to another. There are various types of pumps.
• Types of pumps include centrifugal pumps, positive displacement pumps, and axial flow pumps.

• Centrifugal pumps work by converting rotational energy from a motor into kinetic energy in the fluid being pumped.

• Positive displacement pumps work by trapping a fixed amount of fluid and then forcing it into the discharg...read more
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Q5. Types of reactors uses
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Reactors are vessels used for chemical reactions. Types include batch, continuous, CSTR, PFR, and fluidized bed.
• Batch reactors are used for small-scale production and testing.

• Continuous reactors are used for large-scale production.

• CSTR (continuous stirred tank reactor) is commonly used in the chemical industry.

• PFR (plug flow reactor) is used for reactions with a high heat of reaction.

• Fluidized bed reactors are used for...read more
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