Lohum Cleantech Interview Questions and Answers

Q1. How many ph mainten nickel crystal
Ans. 
The question is unclear and seems to be asking about the number of pH maintenance nickel crystals.
• It is unclear what 'ph mainten nickel crystal' refers to

• It is possible the interviewer made a mistake in phrasing the question

• Ask for clarification or provide an educated guess based on context
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Q2. How many ph mainten raw material dissolve in water and leaching time
Ans. 
pH maintenance raw materials dissolve in water and leaching time depend on the specific material and conditions.
• The number of pH maintenance raw materials that dissolve in water varies depending on the specific materials being used.

• Leaching time can also vary based on factors such as temperature, pH level, and agitation.

• Examples of pH maintenance raw materials include limestone, dolomite, and hydrated lime.
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Q3. How many mainten nickel gpl
Ans. 
The question is unclear and seems to be asking for the number of maintenance nickel GPL, which is not a standard term.
• It is unclear what 'mainten nickel GPL' refers to

• Ask for clarification or more context from the interviewer

• Provide examples of similar terms or concepts you are familiar with
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Q4. How many mainten nickel %
Ans. 
The question is unclear and seems to be asking for a percentage of maintenance nickel.
• Ask for clarification on what 'mainten nickel %' refers to

• Provide examples of different interpretations of the question

• Offer to discuss the topic further to gain a better understanding
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Q5. How many mainten solid % nickel
Ans. 
The question is unclear and lacks context. It seems to be asking about the percentage of nickel in a maintenance solid, but more information is needed for a precise answer.
• Request clarification on the type of maintenance solid being referred to (e.g. metal alloy, coating, etc.)

• Ask for the specific context in which the nickel percentage is relevant (e.g. for corrosion resistance, strength, etc.)

• Provide examples of diffe...read more
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Q1. How many years of experience
Ans. 
I have over five years of experience in the technician field, specializing in equipment maintenance and troubleshooting.
• Worked for three years at XYZ Company, focusing on electronic repairs.

• Completed over 200 successful maintenance tasks, improving equipment efficiency.

• Trained new technicians on best practices and safety protocols.
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Q2. In which department you doing work
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I am currently working in the IT department, focusing on technical support and system maintenance to ensure smooth operations.
• Responsible for troubleshooting hardware and software issues.

• Manage network connectivity and ensure data security.

• Provide training and support to staff on new technologies.

• Collaborate with other departments to implement IT solutions.
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Q1. Question about technical knowledge
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Q2. Question about your work experience
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Q1. Pump & batch processing
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Q2. Mass balance and conversion
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Very different types question in paper

Q1. What is Solvent extraction
Ans. 
Solvent extraction is a method used to separate compounds based on their solubility in different solvents.
• Solvent extraction involves mixing a sample with a solvent that can selectively dissolve the desired compound.

• The mixture is then separated into layers, with the compound of interest being extracted into the solvent layer.

• Common examples include extracting caffeine from coffee beans using water or extracting essent...read more
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Q2. What is distillation
Ans. 
Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, while the components with higher boiling points will remain in the liquid phase.

• Common examples of distilla...read more
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Q1. What is evaporation
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Evaporation is the process by which a liquid turns into a gas due to heat energy.
• Evaporation occurs when molecules at the surface of a liquid gain enough energy to escape into the air.

• It is a cooling process as it removes heat from the liquid.

• Examples include water evaporating from a puddle on a hot day or sweat evaporating from our skin.

• Evaporation is an important part of the water cycle.
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Q2. What is heat transfer
Ans. 
Heat transfer is the process of energy moving from a warmer object to a cooler object.
• Heat transfer can occur through conduction, convection, or radiation.

• Conduction is the transfer of heat through direct contact between objects, like a metal spoon heating up in a hot drink.

• Convection is the transfer of heat through the movement of fluids, like boiling water in a pot.

• Radiation is the transfer of heat through electromag...read more
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Q1. Different between solvent extraction and distillation
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Solvent extraction involves using a solvent to separate compounds, while distillation involves separating compounds based on their boiling points.
• Solvent extraction uses a solvent to dissolve the desired compound, which is then separated from the solvent. Distillation involves heating a mixture to separate compounds based on their boiling points.

• Solvent extraction is often used in the extraction of essential oils from ...read more
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Q2. Different between Vaporization and evaporation
Ans. 
Vaporization is the process of turning a liquid into a gas through heat, while evaporation is the process of a liquid turning into a gas at a temperature below its boiling point.
• Vaporization requires heat to change a liquid into a gas, while evaporation can occur at room temperature.

• Vaporization is a rapid process, such as boiling water to create steam, while evaporation is a slower process, like a puddle drying up.

• Vap...read more
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