Jindal Steel and Power Plant Operator Interview Questions and Answers

Work and time, reasoning,essay

Q1. What is your name and age
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Q2. Tell me something about yourself
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Q1. What methods can be used to determine the RPM of a motor?
Ans. 
Various methods exist to measure motor RPM, including tachometers, frequency counters, and optical sensors.
• Tachometer: A device that directly measures the rotational speed of the motor shaft.

• Frequency Counter: Measures the frequency of the motor's output signal, which can be converted to RPM.

• Optical Sensor: Uses light beams to detect the rotation of a marked disk attached to the motor.

• Stroboscope: A flashing light that...read more
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Q2. What are the safety device system of a conveyor line?
Ans. 
Safety devices in conveyor systems prevent accidents and ensure smooth operation, protecting both workers and equipment.
• Emergency Stop Buttons: Allow immediate shutdown of the conveyor in case of an emergency.

• Safety Guards: Physical barriers that prevent access to moving parts, reducing the risk of injury.

• Photoelectric Sensors: Detect objects or personnel in the conveyor's path, stopping operation if necessary.

• Overload...read more
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Q3. What is negative charge of Esp system electrode?
Ans. 
The negative charge of an ESP system electrode helps in attracting and collecting particulate matter from flue gases.
• Electrostatic Precipitators (ESPs) use negatively charged electrodes to ionize particles in the gas stream.

• The negative charge creates an electric field that attracts positively charged particles, aiding in their collection.

• For example, in power plants, ESPs remove ash and other pollutants from exhaust g...read more
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Q4. What is colour of healthy and unhealthy silica gel?
Ans. 
Healthy silica gel is typically blue or orange, while unhealthy silica gel turns pink or green, indicating moisture absorption.
• Healthy silica gel is often blue or orange, indicating it is dry.

• Unhealthy silica gel turns pink or green when it absorbs moisture.

• Blue silica gel contains cobalt chloride, which changes color when wet.

• Orange silica gel is a safer alternative that changes from orange to green when saturated.
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Q1. Working of reverse forward with drive .
Ans. 
Reverse forward with drive is a control method used in electrical systems to change the direction of rotation of a motor.
• Reverse forward with drive is achieved by using a motor controller that can switch the polarity of the motor's power supply to change its direction of rotation.

• This method is commonly used in applications where the motor needs to be able to run in both forward and reverse directions, such as in conve...read more
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Q2. Power and control wiring of EOT crane.
Ans. 
Power and control wiring of EOT crane involves connecting electrical components to ensure proper functioning.
• Power wiring includes connecting the main power supply to the crane motor and other electrical components.

• Control wiring involves connecting control devices such as push buttons, limit switches, and relays to control the movement of the crane.

• Proper labeling and color-coding of wires is essential for easy troubl...read more
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Q1. What is interested for you in this company.
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Q1. Any other option to electrical se
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Q2. Transformers, conveyor breakers and maintenance, feeder breakers and maintenance charges LOTO
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Q1. What is Transformer ?
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of primary and secondary coils

• Changes voltage levels (step-up or step-down)

• Used in power distribution systems

• Examples: power transformers, distribution transformers
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Q2. ACB and VCB ?
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Q3. What is CRO ?
Ans. 
CRO stands for Cathode Ray Oscilloscope, a device used to display and analyze the waveform of electrical signals.
• CRO is commonly used by electricians and engineers to troubleshoot electrical circuits.

• It displays voltage waveforms in real-time, allowing users to identify issues such as voltage spikes or distortions.

• CROs are essential tools for testing and measuring electronic equipment.

• Example: A CRO can be used to anal...read more
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Q4. What is motor ?
Ans. 
A motor is a device that converts electrical energy into mechanical energy to produce motion.
• Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.

• There are different types of motors including AC motors, DC motors, and servo motors.

• Motors consist of a rotor and a stator, with the rotor rotating when electrical current is applied.

• Examples of motors include elec...read more
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Q1. Basic electrical, wiring diagram, motor ,generator, alternator, basic electronic,
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Q2. Basic electrical, wiring diagram ,motor ,generator,alternator ,power generation
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Q1. Basic electrical ,wiring diagram ,motor ,generator, alternator,lighting
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Q2. Basic electrical ,transformer, motor ,generator, alternator, basic electronic
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Motor mantain ,conveyor belt safety device like bss, zss, installation

Q1. Tell me about yourself
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Q2. Tell me about your quallification
Ans. 
I am a certified electrician with a diploma in Electrical Engineering and 5 years of hands-on experience.
• Certified electrician

• Diploma in Electrical Engineering

• 5 years of hands-on experience
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