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A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire (primary and secondary) wrapped around a core
Primary coil receives electrical energy and creates a magnetic field
Magnetic field induces a voltage in the secondary coil, transferring energy
Used to step up or step down voltage levels in power distribution syst
Parts of a transformer include core, windings, insulation, and terminals.
Core: Provides a path for magnetic flux
Windings: Primary and secondary coils for inducing voltage
Insulation: Prevents short circuits between windings
Terminals: Connect the transformer to external circuits
A conserved tank is a storage tank used to hold a specific quantity of liquid, typically for industrial or agricultural purposes.
Conserved tanks are commonly used in industries such as oil and gas, chemical processing, and water treatment.
These tanks are designed to safely store liquids and prevent leaks or spills.
Conserved tanks may have features such as double walls, leak detection systems, and corrosion-resistant ma...
Permit work procedure is a set of guidelines and steps that must be followed before starting any maintenance work on electrical systems.
Obtain necessary permits before starting any maintenance work
Identify potential hazards and implement safety measures
Communicate with relevant stakeholders about the work being done
Ensure all equipment is properly de-energized before starting work
Follow lockout/tagout procedures to pre
A toolbox meeting is a short daily safety meeting held at the beginning of a work shift to discuss potential hazards, safety procedures, and goals for the day.
Toolbox meetings are typically held at the start of each workday to ensure all workers are aware of safety protocols and goals.
Topics discussed in toolbox meetings may include recent incidents, near misses, safety reminders, and specific tasks for the day.
These m...
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I applied via Walk-in and was interviewed before Nov 2020. There was 1 interview round.
A circuit breaker is an electrical switch that automatically interrupts the flow of current when it exceeds a certain limit.
It is used to protect electrical circuits from damage caused by overloading or short circuits.
It works by detecting the excess current and tripping the switch to break the circuit.
It can be reset manually or automatically depending on the type of circuit breaker.
Examples include thermal circuit br...
A contactor is an electrical switch used for switching an electrical circuit on or off.
It is used to control electric motors, lighting, heating, and other electrical loads.
It consists of a coil, contacts, and an enclosure.
The coil generates a magnetic field that pulls the contacts together to close the circuit.
Examples include HVAC systems, elevators, and industrial machinery.
Contactor ratings are based on the amount o...
MCB stands for Miniature Circuit Breaker. It is an electrical switch that automatically shuts off the electrical circuit during an overload or short circuit.
MCB is a type of circuit breaker that is commonly used in residential and commercial buildings.
It is designed to protect electrical circuits from damage caused by overloading or short circuits.
MCBs are available in different current ratings and can be easily replac...
A motor is a device that converts electrical energy into mechanical energy to produce motion.
Motors are used in various applications such as electric vehicles, industrial machinery, and household appliances.
There are different types of motors such as DC motors, AC motors, stepper motors, and servo motors.
The basic principle of a motor is the interaction between a magnetic field and an electric current.
Examples of motor...
A current transformer is a device that measures the current flowing in a circuit by producing a proportional current in its secondary winding.
Consists of a primary winding and a secondary winding
Primary winding is connected in series with the circuit carrying the current to be measured
Secondary winding is connected to a measuring instrument or protective relay
Produces a current in the secondary winding that is proporti...
I applied via Campus Placement and was interviewed in Nov 2020. There were 3 interview rounds.
posted on 2 Sep 2017
A diesel generator works by converting diesel fuel into mechanical energy which is then converted into electrical energy.
Diesel fuel is injected into the combustion chamber where it ignites and creates high pressure gases that push the piston down, creating mechanical energy.
The mechanical energy is then converted into electrical energy through the use of an alternator.
The alternator uses a magnetic field and a conduct...
A diesel engine works by compressing air in the cylinder, which heats up and ignites the fuel injected into the cylinder.
Air is drawn into the cylinder and compressed by the piston
The compressed air heats up and ignites the fuel injected into the cylinder
The explosion pushes the piston down, which turns the crankshaft and powers the engine
Diesel engines are more efficient than gasoline engines because they compress the...
A train doesn't need a differential because its wheels are fixed to the same axle and rotate at the same speed.
Train wheels are fixed to the same axle
Wheels rotate at the same speed
Differential is used in vehicles with wheels that rotate at different speeds
Differential allows for smooth turning
Petrol engines have lower compression ratios compared to diesel engines.
Petrol engines have lower compression ratios to prevent knocking or detonation.
Diesel engines have higher compression ratios to ignite the fuel without spark plugs.
Higher compression ratios in diesel engines result in better fuel efficiency and torque.
Petrol engines require lower compression ratios to accommodate the lower octane rating of petrol f...
posted on 15 Jul 2017
I was interviewed before Jul 2016.
I applied via Campus Placement and was interviewed in Mar 2020. There were 5 interview rounds.
Lower limit and upper limit are the minimum and maximum values within a given range or set of values.
Lower limit refers to the minimum value that can be reached or considered.
Upper limit refers to the maximum value that can be reached or considered.
These limits define the boundaries or constraints of a particular system or measurement.
For example, in temperature measurement, the lower limit could be -40 degrees Celsius...
posted on 30 Jul 2021
I applied via Campus Placement and was interviewed before Jul 2020. There were 3 interview rounds.
posted on 10 Sep 2020
I applied via Campus Placement and was interviewed in Mar 2020. There was 1 interview round.
I am a mechanical engineer with expertise in designing and analyzing mechanical systems.
I have a Bachelor's degree in Mechanical Engineering from XYZ University.
I have worked as a mechanical engineer for 5 years at ABC Company, where I designed and optimized mechanical components for various projects.
I am proficient in CAD software such as AutoCAD and SolidWorks, and have experience in conducting simulations and stress...
Petrol engines use spark ignition while diesel engines use compression ignition.
Petrol engines use spark plugs to ignite the fuel-air mixture, while diesel engines rely on compression to ignite the fuel.
Petrol engines have a higher power-to-weight ratio compared to diesel engines.
Diesel engines are more fuel-efficient than petrol engines.
Petrol engines are typically used in cars, motorcycles, and small vehicles, while ...
Vernier calipers and micrometers are precision measuring tools used in mechanical engineering.
Vernier calipers are used to measure dimensions with high accuracy, typically up to 0.02 mm.
Micrometers are used for even more precise measurements, typically up to 0.001 mm.
Both tools are commonly used in mechanical engineering for dimensional inspection and quality control.
Vernier calipers have a sliding scale and a main sca...
I chose mechanical engineering because of my fascination with steam power and its applications.
I have always been intrigued by the power and versatility of steam as a source of energy.
Steam technology has a long history and has played a crucial role in the development of various industries.
I find the principles of thermodynamics and fluid mechanics involved in steam systems to be intellectually stimulating.
Working with...
Excel is a spreadsheet software used for organizing, analyzing and manipulating data.
Excel allows users to create tables, charts, and graphs to represent data visually.
It can perform complex calculations and analysis on large sets of data.
Excel can be used for budgeting, financial analysis, project management, and more.
It also has features for data validation, sorting, filtering, and conditional formatting.
Excel can im...
Motivating workers is crucial for productivity and job satisfaction.
Recognize and appreciate their efforts
Provide opportunities for growth and development
Create a positive work environment
Set clear goals and expectations
Offer incentives and rewards
Encourage teamwork and collaboration
I applied via Naukri.com and was interviewed in Feb 2021. There was 1 interview round.
Electric motor production started in the late 19th century and has since evolved with advancements in technology.
Electric motor production began in the late 19th century.
The first practical electric motor was developed by Thomas Davenport in 1834.
Advancements in technology have led to the development of more efficient and powerful electric motors.
Electric motor production has grown significantly with the rise of electr
I applied via Campus Placement and was interviewed before Feb 2021. There were 4 interview rounds.
Aptitude test based on mechanical engineering subject in diploma.
GD was conducted on Private and Government sector job profile and culture.
In 5 years, I see myself as a senior mechanical engineer leading a team of engineers in developing innovative solutions.
Leading a team of engineers
Developing innovative solutions
Taking on more responsibilities
Continuing professional development
Contributing to the growth of the company
My family background is diverse and has influenced my passion for mechanical engineering.
My father is a mechanical engineer and has been a great inspiration for me.
My mother is a teacher and has always encouraged me to pursue my interests in science and technology.
I have an older brother who is also a mechanical engineer and we often discuss and share ideas about our work.
My grandparents were involved in the automotive...
I have a strong technical background, excellent problem-solving skills, and a passion for innovation.
Extensive knowledge and experience in mechanical engineering principles and practices
Proven track record of successfully completing complex projects on time and within budget
Strong analytical and problem-solving skills, with the ability to identify and resolve issues efficiently
Excellent communication and teamwork abili...
My strengths include problem-solving, attention to detail, and strong technical skills. My weaknesses include a tendency to overthink and a lack of experience in certain areas.
Strength: Problem-solving - I have a strong ability to analyze complex problems and come up with effective solutions.
Strength: Attention to detail - I pay close attention to the small details in my work to ensure accuracy and quality.
Strength: Te...
I am a mechanical engineer with expertise in designing and analyzing mechanical systems.
I have a Bachelor's degree in Mechanical Engineering from XYZ University.
I have 5 years of experience working as a mechanical engineer at ABC Company.
I am proficient in CAD software such as AutoCAD and SolidWorks.
I have successfully designed and implemented several mechanical systems, including a robotic arm for industrial automatio...
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