Tokai Imperial Rubber India Interview Questions, Process, and Tips for Experienced

Q1. What do you know about Extruder?
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An extruder is a machine that processes materials, typically plastics or food, by forcing them through a shaped die.
• Extruders are commonly used in the plastic manufacturing industry to create products like pipes, sheets, and films.

• In food processing, extruders can produce snacks, cereals, and pet food by cooking and shaping ingredients.

• The process involves heating and mixing materials, which are then forced through a d...read more
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Q2. What is thermocouple and its working and types of thermocouple?
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A thermocouple is a temperature sensor made of two dissimilar metals joined at one end, generating voltage based on temperature differences.
• Consists of two different metal wires (e.g., copper and constantan).

• Works on the Seebeck effect: voltage generated is proportional to temperature difference.

• Common types include Type K (Chromel-Alumel), Type J (Iron-Constantan), and Type T (Copper-Constantan).

• Used in various applic...read more
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What is Foaming defects and reason for occurence.

Q1. What is Foaming process ?
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Foaming process is a manufacturing technique used to create foam-like structures by introducing gas bubbles into a liquid or solid material.
• Foaming process involves the creation of gas bubbles in a material.

• The gas bubbles can be introduced through mechanical agitation, chemical reactions, or the use of foaming agents.

• Foaming can be done with various materials such as plastics, metals, ceramics, and even food products.

• ...read more
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Q2. What is Foaming defects
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Foaming defects are issues that occur during production when excessive air or gas is trapped in a material, resulting in bubbles or voids.
• Foaming defects can occur in various manufacturing processes, such as injection molding, casting, or foam production.

• These defects can lead to reduced product quality, decreased mechanical strength, and compromised functionality.

• Common causes of foaming defects include improper mater...read more
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Q2. What is Plc programming
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PLC programming is the process of creating software programs that control industrial automation systems using programmable logic controllers.
• PLC programming involves writing code to control the behavior of machines and equipment in industrial settings.

• Programmable logic controllers are specialized computers that can be programmed to perform specific tasks.

• PLC programming is used in a wide range of industries, including...read more
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Q3. What is the RTD and thermocouple
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RTD stands for Resistance Temperature Detector and Thermocouple is a temperature sensor made of two different metals.
• RTD measures temperature by detecting changes in electrical resistance of a metal wire as temperature changes.

• Thermocouple generates a voltage proportional to the temperature difference between its two junctions.

• RTD is more accurate and stable than thermocouple.

• Thermocouple is cheaper and can measure a w...read more
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Q4. What is the no and nc
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NO and NC are abbreviations used in electrical circuits to describe the state of a switch or relay.
• NO stands for Normally Open, which means the switch or relay is open (off) in its normal state.

• NC stands for Normally Closed, which means the switch or relay is closed (on) in its normal state.

• NO and NC are commonly used in control circuits to indicate the position of a switch or the state of a relay.

• For example, in a lig...read more
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Q5. What is the working of drive
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A drive is an electronic device that controls the speed and torque of an electric motor.
• Drives are used to regulate the speed and torque of electric motors.

• They work by adjusting the frequency and voltage of the power supplied to the motor.

• There are different types of drives, such as AC drives, DC drives, and servo drives.

• Drives are commonly used in industrial applications, such as manufacturing and automation.

• Examples...read more
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Q6. What is the transformer
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A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
• Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

• They consist of two coils of wire, known as the primary and secondary coils, which are wrapped around a magnetic core.

• When an AC voltage is applied to the primary coil, it creates a magne...read more
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Q1. Knowledge of production
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Q1. Basic question your current company
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