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NMDC Limited Junior Engineer Interview Questions, Process, and Tips
NMDC Limited Junior Engineer Interview Experiences
1 interview found
Shyamal Barman
Selected
I applied via Recruitment Consulltant and was interviewed in Jul 2024. There were 2 interview rounds.
(2 Questions)
- 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
- 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...
(2 Questions)
- 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...
- 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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Anonymous
(4 Questions)
- Q1. Question regarding motor, generator, Alternator and transformer.
- Q2. What are causes of hot bearings?
- Ans.
Causes of hot bearings include lack of lubrication, overloading, misalignment, and contamination.
Lack of lubrication: Insufficient or degraded lubricant can cause increased friction and heat.
Overloading: Excessive load on the bearing can lead to overheating.
Misalignment: Improper alignment of the bearing can cause it to operate under stress and generate heat.
Contamination: Foreign particles or debris in the bearing can
- Q3. What causes are responsible for over-heating of Commutator in a DC motor?
- Ans.
Over-heating of Commutator in a DC motor can be caused by factors like excessive current, poor ventilation, dirty environment, and worn-out brushes.
Excessive current flowing through the motor can cause the commutator to overheat.
Poor ventilation around the motor can lead to inadequate cooling, resulting in overheating.
A dirty environment can cause dust and debris to accumulate on the commutator, hindering heat dissipat...
- Q4. What will happen if a shunt motor is directly connected to the supply line?
- Ans.
The shunt motor will run at dangerously high speeds and may get damaged.
The motor will run at its no-load speed, which is much higher than its rated speed.
This can lead to overheating and mechanical stress on the motor components.
The motor may get damaged or fail prematurely if directly connected to the supply line.
(1 Question)
- Q1. Question related to motor, generator Alternator and transformer
Interview Preparation Tips
Selected
I applied via Walk-in and was interviewed in Aug 2022. There were 2 interview rounds.
(4 Questions)
- Q1. Types of compressor Working of compressor
- Ans.
Compressors are devices that increase the pressure of a gas or vapor.
Types of compressors include reciprocating, rotary screw, centrifugal, and axial flow compressors.
Reciprocating compressors use pistons to compress gas, while rotary screw compressors use screws.
Centrifugal compressors use a rotating impeller to increase gas velocity, while axial flow compressors use blades to compress gas.
Compressors work by reducing...
- Q2. Pump working functions Winder engine part name
- Ans.
Pump working functions involve moving fluids from one place to another. Winder engine part name varies depending on the type of engine.
Pump working functions include suction, discharge, and pressure generation.
Winder engine part names can include crankshaft, camshaft, piston, and connecting rod.
Examples of pumps include centrifugal pumps, positive displacement pumps, and jet pumps.
- Q3. How to start compressor On/off switch
- Ans.
To start a compressor, turn on the on/off switch and wait for the compressor to build up pressure.
Locate the on/off switch on the compressor.
Turn the switch to the 'on' position.
Wait for the compressor to build up pressure before using it.
If the compressor has a pressure gauge, wait for it to reach the desired pressure level before using it.
If the compressor has a safety valve, make sure it is not open before starting
- Q4. Electric supply Transformer
Interview Preparation Tips
- Working principal
Technical strong about your department some basic question learn them
Selected
I applied via Company Website and was interviewed in Jul 2022. There were 3 interview rounds.
(2 Questions)
- Q1. What is 5S,TPM,7 Qc tools ?
- Ans.
5S, TPM, and 7 QC tools are methodologies used in manufacturing to improve efficiency and quality.
5S is a workplace organization method that involves sorting, simplifying, sweeping, standardizing, and sustaining.
TPM stands for Total Productive Maintenance and is a system for maintaining and improving equipment and processes.
7 QC tools are a set of problem-solving tools used to identify and solve quality-related issues....
- Q2. Knowledge of Battery Assembly
(2 Questions)
- Q1. Whats your current salary ?
- Q2. How much you expect from here ?
Interview Preparation Tips
- Battery Domain
I applied via Company Website and was interviewed in Apr 2022. There was 1 interview round.
(4 Questions)
- 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...
- 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...
- 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...
- 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.
Interview Preparation Tips
Selected
I applied via Walk-in and was interviewed in Nov 2023. There was 1 interview round.
(3 Questions)
- Q1. Density of slurry
- Ans.
Density of slurry is the mass of the slurry per unit volume.
Density of slurry is typically measured in kg/m^3 or lb/ft^3.
It is calculated by dividing the mass of the slurry by its volume.
The density of slurry can vary depending on the concentration of solids in the liquid.
For example, a slurry with a high concentration of solids will have a higher density.
- Q2. SPL meaning and SEL meaning
- Ans.
SPL stands for Sound Pressure Level and SEL stands for Sound Exposure Level.
SPL is a measure of sound intensity relative to a reference level.
SEL is a measure of sound exposure over a period of time, typically in decibels.
Both SPL and SEL are commonly used in the field of acoustics and noise control.
- Q3. Whit is red area
- Ans.
The red area typically refers to a section or region that is highlighted or marked in the color red.
Red area can indicate danger or warning.
In engineering, red areas on diagrams or blueprints may signify areas of high risk or critical components.
Examples: red area on a map indicating a fire hazard zone, red area on a circuit diagram highlighting a high voltage section.
Interview Preparation Tips
- Heat Transfer
Selected
I applied via Company Website and was interviewed in Dec 2023. There was 1 interview round.
(1 Question)
- Q1. Material science and Internal combustion engine Manufacturing processe
Selected
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Building construction
- Q2. Road construction
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed in Apr 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Thermodynamics related questions Types of engine,boilers type and rac
- Q2. Types of engine with thier origin country
- Ans.
Various types of engines and their origin countries
Internal Combustion Engine - Germany
Steam Engine - United Kingdom
Jet Engine - United States
Electric Engine - Various countries
Rocket Engine - Various countries
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Nov 2022. There were 4 interview rounds.
(1 Question)
- Q1. Related our Work experience
(1 Question)
- Q1. Related our Qualification
Related our behaviour and future plan or policy
Interview Preparation Tips
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NMDC Limited Junior Engineer Interview Process
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NMDC Limited Junior Engineer Reviews and Ratings
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Rating in categories
|
Executive
147
salaries
|  ₹7 L/yr - ₹13.5 L/yr |
|
Executive Engineer
45
salaries
| ₹6 L/yr - ₹11.2 L/yr |
|
Senior Manager
40
salaries
| ₹13 L/yr - ₹40 L/yr |
|
Manager
37
salaries
| ₹9.4 L/yr - ₹30 L/yr |
|
Deputy Manager
32
salaries
| ₹8 L/yr - ₹24 L/yr |
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