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The Sanskaar Valley School Interview Questions and Answers

Updated 5 Feb 2024

Q1. What are the subjects in 4th Sem of BTech in your branch.

Ans.

The subjects in the 4th semester of BTech vary depending on the branch.

  • Some common subjects in the 4th semester of BTech include Data Structures, Digital Electronics, Signals and Systems, and Electromagnetic Theory.

  • For example, in the Computer Science branch, subjects like Database Management Systems and Operating Systems may be included.

  • In the Mechanical Engineering branch, subjects like Fluid Mechanics and Thermodynamics may be part of the 4th semester curriculum.

  • The specif...read more

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Q2. What is CRO and it works? What is voltmeter, ammeter, potentiometer, rectifier and does it works with an example.

Ans.

CRO stands for Cathode Ray Oscilloscope. It is an electronic device used to visualize and analyze electrical signals.

  • CRO is used to display waveforms and measure voltage, frequency, and time intervals.

  • It works by generating an electron beam that is deflected by the input signal and displayed on a screen.

  • CROs are commonly used in electronics, telecommunications, and engineering fields.

  • Example: A CRO can be used to analyze the waveform of an audio signal to check for distortion...read more

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Q3. Tell me something about NALCO and what is the procedure to produce alluminium

Ans.

NALCO is a leading aluminium producer. The procedure to produce aluminium involves several steps.

  • NALCO is short for National Aluminium Company Limited.

  • It is a public sector enterprise in India.

  • NALCO is involved in the mining, refining, and smelting of bauxite to produce aluminium.

  • The procedure to produce aluminium includes mining bauxite, refining it into alumina, and then smelting alumina to obtain aluminium metal.

  • Bauxite is first mined from open-pit mines and then transport...read more

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Q4. Why is the frame of bicycle hollow

Ans.

The frame of a bicycle is hollow to reduce weight and increase maneuverability.

  • Hollow frame reduces weight and makes it easier to handle

  • Allows for better shock absorption

  • Enables internal cable routing for a cleaner look

  • Examples of materials used for hollow frames include aluminum, carbon fiber, and titanium

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Q5. How to extract aluminium from bauxite

Ans.

Aluminium is extracted from bauxite through the Bayer process which involves crushing, digestion, precipitation, and calcination.

  • Bauxite is first crushed into small pieces

  • The crushed bauxite is then mixed with a hot caustic soda solution in a digester vessel

  • The resulting slurry is filtered to remove impurities

  • The filtered solution is then cooled and aluminium hydroxide is precipitated

  • The precipitated aluminium hydroxide is then heated to produce alumina

  • Finally, the alumina is...read more

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Q6. What are the inputs for blast furnace

Ans.

Inputs for blast furnace include iron ore, coke, limestone, and hot air.

  • Iron ore is the primary input and is usually in the form of hematite or magnetite

  • Coke is a fuel used to heat the furnace and is made from coal

  • Limestone is added to remove impurities and create slag

  • Hot air is blown into the furnace to increase the temperature

  • Other inputs may include scrap metal, fluxes, and additives

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