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10+ Eptisa Interview Questions and Answers

Updated 13 Aug 2024

Q1. Why is micrometre scree gauge is used instead of varnier caliper

Ans.

Micrometer screw gauge is used for higher precision measurements than vernier caliper.

  • Micrometer screw gauge has a higher accuracy of measurement than vernier caliper.

  • Micrometer screw gauge has a smaller least count than vernier caliper.

  • Micrometer screw gauge is used for measuring thickness, diameter, and depth of objects with high precision.

  • Vernier caliper is used for measuring length, width, and height of objects with moderate precision.

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Q2. What is the difference between blower and compressor

Ans.

Blower is used to move air or gas while compressor is used to compress air or gas.

  • Blower is used to create a high flow of air or gas at low pressure.

  • Compressor is used to compress air or gas to a higher pressure.

  • Blowers are used in HVAC systems, while compressors are used in refrigeration systems.

  • Blowers are used in industrial applications to move large volumes of air or gas.

  • Compressors are used in pneumatic tools like jackhammers and impact wrenches.

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Q3. What is the least count of varnier caliper

Ans.

The least count of vernier caliper is the smallest measurement that can be read on the scale.

  • The least count is determined by the number of divisions on the vernier scale and the main scale.

  • It is usually 0.1 mm or 0.02 mm for metric vernier calipers and 0.001 inch for imperial vernier calipers.

  • To determine the least count, subtract the value of one main scale division from the value of one vernier scale division.

  • For example, if one main scale division is 1 mm and one vernier ...read more

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Q4. What are the various types of pumps

Ans.

Various types of pumps include centrifugal, positive displacement, axial flow, and jet pumps.

  • Centrifugal pumps use a rotating impeller to create a flow of fluid.

  • Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the discharge port.

  • Axial flow pumps move fluid parallel to the pump shaft.

  • Jet pumps use a combination of pressure and suction to move fluid.

  • Other types of pumps include gear pumps, peristaltic pumps, and diaphragm pumps.

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Q5. Types of mechanical joints and processes

Ans.

Mechanical joints are used to connect two or more mechanical parts together. There are various types of joints and processes.

  • Welding joints - fusion welding, resistance welding, friction welding

  • Brazing joints - torch brazing, furnace brazing, induction brazing

  • Soldering joints - soft soldering, hard soldering

  • Mechanical joints - bolted joints, riveted joints, snap-fit joints

  • Adhesive joints - structural adhesive, pressure-sensitive adhesive

  • Interference fit joints - press fit, sh...read more

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Q6. What is partial pressure

Ans.

Partial pressure is the pressure exerted by a single gas in a mixture of gases.

  • Partial pressure is proportional to the mole fraction of the gas in the mixture.

  • It is calculated by multiplying the total pressure of the mixture by the mole fraction of the gas.

  • Each gas in a mixture contributes to the total pressure independently.

  • Dalton's law of partial pressures states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each gas.

  • Partial pressu...read more

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Q7. What is Ideal gas law

Ans.

Ideal gas law is a fundamental law of physics that describes the behavior of gases under varying conditions.

  • It relates the pressure, volume, temperature, and number of particles of a gas.

  • The law is expressed as PV = nRT, where P is pressure, V is volume, n is the number of particles, R is the gas constant, and T is temperature.

  • The law assumes that the gas particles are in constant random motion and that there are no intermolecular forces between them.

  • The law is used in variou...read more

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Q8. Flow measuring device. Unit of pressure, force,

Ans.

The unit of pressure is Pascal (Pa) and the unit of force is Newton (N).

  • Flow measuring devices include orifice plates, venturi tubes, and flow nozzles.

  • Pressure is measured in units of force per unit area.

  • Force is a vector quantity that can be measured using a force gauge or load cell.

  • In fluid mechanics, pressure is often used to calculate flow rate.

  • Examples of flow measuring devices include rotameters, magnetic flow meters, and ultrasonic flow meters.

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Q9. whats is Annual return, section

Ans.

Annual return is a document that companies must file annually with the government, providing information about their financial activities.

  • Annual return is a mandatory document filed by companies with the government.

  • It includes information about the company's financial activities, such as balance sheet, profit and loss statement, and shareholder details.

  • The purpose of the annual return is to provide transparency and accountability to stakeholders.

  • Failure to file the annual ret...read more

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Q10. what is rpt, sections

Ans.

RPT stands for Report, which is a document containing information or data. Sections refer to different parts or divisions within a report.

  • RPT is short for Report, which is a detailed document presenting information or data.

  • Sections in a report refer to different parts or divisions that organize the content.

  • Examples of sections in a report could include introduction, methodology, results, and conclusion.

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Q11. Previous organization process parameter

Ans.

The previous organization had well-defined process parameters for production.

  • The process parameters were established to ensure consistent quality and efficiency.

  • Examples of process parameters include temperature, pressure, speed, and time.

  • These parameters were monitored and controlled throughout the production process.

  • Regular audits and inspections were conducted to ensure compliance with the parameters.

  • Any deviations from the set parameters were investigated and corrective a...read more

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