Neelachal Ispat Nigam Junior Engineer Trainee Interview Questions and Answers

Q1. Tranformar testing
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Q2. HT.LTBreaker testing and maintenance
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Q3. HT LT motar testing and maintenance
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Q4. CT testing and maintenance
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Q5. PT testing and maintenance
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Q1. What is the unit of resistance?
Ans. 
The unit of resistance is ohm (Ω).
• The unit of resistance is measured in ohms (Ω).

• Resistance is denoted by the symbol 'R' in equations.

• One ohm is equal to one volt per ampere (1 Ω = 1 V/A).
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Q2. What is the meaning of current?
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Current is the flow of electric charge in a circuit.
• Current is the rate of flow of electric charge in a circuit.

• It is measured in Amperes (A).

• Current flows from positive to negative terminal in a circuit.

• There are two types of current - AC (Alternating Current) and DC (Direct Current).
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Q3. What is magnet?
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A magnet is an object that produces a magnetic field and attracts certain materials like iron.
• A magnet has two poles - north and south.

• Opposite poles attract each other while like poles repel.

• Magnets can be natural (lodestone) or man-made (permanent magnets).
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Q4. What is the working principle of transformer?
Ans. 
Transformer works on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
• Transformers have two coils of wire, known as primary and secondary coils.

• When an alternating current flows through the primary coil, it creates a changing magnetic field.

• This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.

• The ratio of the number of ...read more
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Q5. Value of Indian frequency?
Ans. 
The value of Indian frequency is 50 Hz.
• The standard frequency used in India for electrical power distribution is 50 Hz.

• This frequency is used for both residential and industrial purposes.

• It is important for ensuring compatibility of electrical equipment and appliances.

• In contrast, countries like the United States use a frequency of 60 Hz.
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Q6. What is the unit of current?
Ans. 
The unit of current is Ampere (A).
• The unit of current is Ampere (A)

• It is named after the French physicist Andre-Marie Ampere

• Current is the flow of electric charge in a circuit
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Q7. What is the meaning magnetic field?
Ans. 
A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
• A magnetic field is produced by moving electric charges or magnetic materials.

• It exerts a force on other moving charges and magnetic materials within its vicinity.

• The strength and direction of a magnetic field can be represented by magnetic field lines.

• Examples include the Earth's magnetic field
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Q8. Law's of resistance?
Ans. 
The laws of resistance describe how the resistance of a material is affected by factors such as length, cross-sectional area, and temperature.
• Resistance is directly proportional to the length of the material - longer materials have higher resistance.

• Resistance is inversely proportional to the cross-sectional area of the material - larger cross-sectional areas have lower resistance.

• Resistance increases with temperature ...read more
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Q9. Relationship between current, voltage and resistance?
Ans. 
The relationship between current, voltage, and resistance is described by Ohm's Law.
• Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor.

• Mathematically, Ohm's Law is expressed as I = V/R, where I is the current in Amperes, V is the voltage in Volts, and R is the resistance in Ohms.

• This relati...read more
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Q1. Technical and non technical
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Q2. Personal detail
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Q3. All technical electrical
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Q4. All technical equipment and machine
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Written test on general knowledge

Q1. It was on education, general knowledge and on stores and purchase functions.
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Q1. There was no round 3 interview
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Q1. Say something about press filter
Ans. 
Press filter is a device used for separating solids from liquids.
• It works by applying pressure to the mixture to force the liquid through a filter media while retaining the solids.

• It is commonly used in industries such as chemical, pharmaceutical, and food processing.

• Examples of press filters include belt filter press, plate and frame filter press, and rotary vacuum-drum filter.

• Press filters are efficient and cost-effe...read more
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Q2. How to maintain pressure in press filter
Ans. 
To maintain pressure in press filter, ensure proper sealing, check for leaks, and adjust feed rate and pressure settings.
• Check for proper sealing of the filter plates and gaskets

• Inspect for any leaks in the system and repair them promptly

• Adjust the feed rate and pressure settings as per the manufacturer's recommendations

• Regularly clean and maintain the filter to prevent clogging and pressure drop

• Monitor the pressure ga...read more
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Q3. What is the model of hydraulic cylinder in press filter
Ans. 
The model of hydraulic cylinder in press filter depends on the specific press filter being used.
• The model of hydraulic cylinder can vary depending on the size and capacity of the press filter.

• Some common models of hydraulic cylinders used in press filters include tie rod cylinders and welded cylinders.

• The specific model of hydraulic cylinder used in a press filter can be determined by consulting the manufacturer's spec...read more
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Q4. Which type bearing use in bogie wheel
Ans. 
Roller bearings are commonly used in bogie wheels.
• Roller bearings are preferred over plain bearings due to their ability to handle heavy loads and reduce friction.

• Tapered roller bearings are commonly used in locomotive bogie wheels.

• Cylindrical roller bearings are also used in some bogie wheels.

• The type of bearing used depends on the specific application and load requirements.
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Q1. Previous work experience
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Q2. How is gratuity calculated
Ans. 
Gratuity is calculated based on an employee's length of service and last drawn salary.
• Gratuity is a lump sum amount paid to an employee as a token of appreciation for their service.

• The calculation of gratuity depends on the number of years an employee has worked for an organization.

• In India, gratuity is calculated using the formula: (Last drawn salary × 15 × number of years of service) / 26.

• The number of years of servi...read more
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Q1. What is Atmosphere pressure?
Ans. 
Atmospheric pressure is the force per unit area exerted on a surface by the weight of the air above that surface.
• Atmospheric pressure decreases with increasing altitude

• Standard atmospheric pressure at sea level is around 1013.25 millibars or 29.92 inches of mercury

• Atmospheric pressure is measured using barometers
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Q2. How to weight adjustment Load cell controller.
Ans. 
Weight adjustment of a Load cell controller involves calibrating the controller to accurately measure weight.
• Calibrate the load cell controller using known weights to ensure accurate measurements.

• Adjust the zero balance to account for any offset in the readings.

• Perform span adjustment to set the maximum weight range the controller can measure.

• Verify the accuracy of the adjustments by testing with different weights.

• Repe...read more
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Q1. How to calibration AMLC on 15 plant.
Ans. 
Calibrating AMLC on 15 plant involves ensuring accurate measurements and adjustments for optimal performance.
• Ensure all 15 plants are properly set up and functioning correctly before calibration.

• Use calibration equipment such as sensors, meters, and software to adjust AMLC settings.

• Perform calibration tests on each plant individually to ensure accuracy and consistency.

• Document calibration results and make necessary adj...read more
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Q2. Why used to Qmap?
Ans. 
Qmap is used for quality mapping in software testing.
• Qmap helps in identifying areas of improvement in software quality.

• It provides a visual representation of quality metrics.

• Qmap can be used to track defects and their resolution.

• It helps in analyzing the effectiveness of testing strategies.
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