Rakhoh Industries Engineer Trainee Interview Questions and Answers

Quantitative reasoning

Q1. About yourself and past experiences.
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Q2. Managerial round
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Q3. About company information
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Q4. About yourself and extracurricular activities
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Q5. See yourself in the next 5 yrs
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My better performence.

My work perfomence was poor

Q1. What matterialls usess in semiconduter.
Ans. 
Semiconductors use materials like silicon, germanium, gallium arsenide, and silicon carbide.
• Common materials used in semiconductors are silicon, germanium, gallium arsenide, and silicon carbide.

• These materials have unique electrical properties that make them suitable for use in electronic devices.

• Silicon is the most widely used semiconductor material due to its abundance and versatility.

• Gallium arsenide is often used i...read more
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Q2. What kinds of semiconducter.
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Semiconductors are materials that have electrical conductivity between that of a conductor and an insulator.
• Semiconductors are used in electronic devices like transistors, diodes, and integrated circuits.

• Common semiconductor materials include silicon, germanium, and gallium arsenide.

• Semiconductors can be doped to change their electrical properties, such as adding impurities to increase conductivity.
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Q3. Working of power genaretion.
Ans. 
Power generation involves converting mechanical energy into electrical energy through various methods such as steam turbines, hydroelectric dams, and wind turbines.
• Power generation involves the conversion of mechanical energy into electrical energy.

• Common methods of power generation include steam turbines, hydroelectric dams, and wind turbines.

• Steam turbines use steam to drive a generator, converting thermal energy int...read more
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Q4. What energy genaret a solar pannel.
Ans. 
Solar panels generate energy from sunlight by converting sunlight into electricity through photovoltaic cells.
• Solar panels use photovoltaic cells to convert sunlight into electricity

• The photovoltaic cells are made of semiconductor materials like silicon

• When sunlight hits the cells, it creates an electric current

• This electric current is then converted into usable electricity for powering homes or devices
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Q5. What is battery.
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A battery is a device that stores chemical energy and converts it into electrical energy to power electronic devices.
• Batteries come in various sizes and types, such as alkaline, lithium-ion, and lead-acid.

• They are commonly used in electronic devices like smartphones, laptops, and cars.

• Batteries consist of one or more cells that contain electrolytes and electrodes.

• When a battery is connected to a circuit, chemical react...read more
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Distribution of power.

Q1. What is solar pannel.
Ans. 
Solar panels are devices that convert sunlight into electricity by using photovoltaic cells.
• Solar panels are made up of photovoltaic cells that capture sunlight and convert it into electricity.

• They are commonly used to generate renewable energy for residential, commercial, and industrial purposes.

• Solar panels are mounted on rooftops or in open fields to maximize exposure to sunlight.

• They are environmentally friendly an...read more
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Q2. Kinds of solar pannel.
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There are mainly three types of solar panels: monocrystalline, polycrystalline, and thin-film.
• Monocrystalline solar panels are made from single-crystal silicon and are known for their high efficiency.

• Polycrystalline solar panels are made from multiple silicon crystals and are more affordable but slightly less efficient than monocrystalline panels.

• Thin-film solar panels are made by depositing a thin layer of photovoltai...read more
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Coding test on JavaScript

Got an assignment to create a e-learning platform

Q1. What is JavaScript
Ans. 
JavaScript is a programming language commonly used for creating interactive websites.
• JavaScript is a high-level, interpreted programming language.

• It is used to make web pages interactive and dynamic.

• JavaScript can be used for client-side and server-side development.

• Examples: Adding interactivity to buttons, form validation, creating animations.
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Q1. What is your stength
Ans. 
My strength lies in my ability to quickly learn new technologies and adapt to changing environments.
• Quick learner

• Adaptable to change

• Strong problem-solving skills

• Excellent communication skills

• Team player
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Q1. About everything mentioned in the resume.
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Q2. College projects
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Q1. Behavioural questions - family, city I belong to, goals.
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Q1. Some core Java questions
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Q1. Simple intro about yourself
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Asking products of cogoport and past experiences

Q1. Previous job related questions . About Company Products of company
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Q2. Basic knowledge of major subject
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Basic aptitude in Engineering

Q1. What is distillation types of distillation
Ans. 
Distillation is a process used to separate mixtures based on differences in boiling points.
• Distillation is a widely used technique in chemical engineering.

• There are two main types of distillation: batch distillation and continuous distillation.

• Batch distillation involves separating a mixture into its components in a series of steps.

• Continuous distillation involves continuously feeding a mixture into a distillation colu...read more
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Q2. Chemical formula of acetone
Ans. 
Acetone's chemical formula is C3H6O.
• Acetone is a colorless, volatile liquid with a sweet smell.

• It is commonly used as a solvent and in nail polish remover.

• Its chemical formula is C3H6O, which means it has three carbon atoms, six hydrogen atoms, and one oxygen atom.

• Acetone is also produced naturally in the human body as a byproduct of metabolism.
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Q3. Azeotropic distillation
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