300+ Graduate Engineer Interview Questions and Answers

Suspension geometries include double wishbone, MacPherson strut, and multi-link, each experiencing different forces like compression, rebound, and lateral forces.

• Double wishbone suspension has two control arms that allow for independent control of camber and toe angles.

• MacPherson strut suspension uses a single control arm and a strut to support the wheel and handle vertical forces.

• Multi-link suspension uses multiple control arms to provide better handling and comfort by contr...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. A motor is a machine that converts electrical energy into mechanical energy. Motor slip is the difference between the synchronous speed and the actual speed of the motor. Synchronous speed (Ns) is the speed at which the rotating magnetic field of the motor is in synchronism with the frequency of the power supply.

• Transformer: electrical device ...read more

Level sensor, flow sensor, and temperature sensor are devices used to measure different physical parameters in various industries.

• Level sensor measures the level of a substance in a container or tank, such as liquid level sensors in water tanks.

• Flow sensor measures the flow rate of a fluid, like a flow meter in a pipeline.

• Temperature sensor measures the temperature of a system or environment, for example, a thermocouple in a furnace.

I gained knowledge about the pipe manufacturing sector through education, internships, and industry research.

• Completed coursework in materials science and manufacturing processes during my engineering degree.

• Interned at a pipe manufacturing company where I learned about production techniques and quality control.

• Attended industry conferences and workshops to stay updated on the latest technologies and trends.

• Conducted research on different types of pipes, such as PVC and steel...read more

The weight of a sheet made of iron can be calculated by multiplying the volume of the sheet by the density of iron.

• Calculate the volume of the sheet by multiplying its length, width, and thickness.

• Determine the density of iron, which is typically around 7.87 g/cm^3.

• Multiply the volume of the sheet by the density of iron to get the weight in grams or kilograms.

I plan to pursue a Master's abroad to enhance my skills and gain international exposure in my engineering field.

• I aim to specialize in renewable energy systems, which are crucial for sustainable development.

• Studying abroad will provide me with access to advanced research facilities and expert faculty.

• I want to experience diverse cultures and collaborate with international peers on engineering projects.

• For example, universities in Europe offer cutting-edge programs in my area ...read more

Yes, I have experience working with new technologies like blockchain and llms.

• Developed smart contracts on blockchain for secure transactions

• Implemented llms (Learning Management Systems) for online education platforms

• Stayed updated on latest advancements in blockchain and llms technology

Factorial of a number is calculated by multiplying all positive integers up to that number.

• Use a loop to multiply all positive integers up to the given number.

• Handle edge cases like 0 and negative numbers separately.

• Example: For input 5, factorial = 5*4*3*2*1 = 120.

Data visualization tools help to represent data in a graphical or pictorial format for better understanding.

• Some popular data visualization tools are Tableau, Power BI, QlikView, D3.js, and Google Charts.

• These tools can be used to create charts, graphs, maps, and other visual representations of data.

• To use these tools, one needs to import data into the software and select the appropriate visualization type.

• Then, customize the visualization by adding labels, colors, and other ...read more

Map, filter, and reduce are functional programming tools in Python for processing iterables efficiently.

• map(function, iterable): Applies a function to all items in an iterable. Example: map(lambda x: x**2, [1, 2, 3]) results in [1, 4, 9].

• filter(function, iterable): Filters items in an iterable based on a function that returns True or False. Example: filter(lambda x: x > 2, [1, 2, 3, 4]) results in [3, 4].

• reduce(function, iterable): Applies a rolling computation to sequential ...read more

Stress-strain graph of stainless steel typically shows a linear elastic region followed by a yield point and then strain hardening.

• Stainless steel initially deforms elastically until reaching the yield point

• After the yield point, plastic deformation occurs with strain hardening

• The graph may show a slight decrease in stress before reaching ultimate tensile strength

• Fracture occurs after the ultimate tensile strength is reached

The risk of the balloon popping outweighs the reward of tapping it for money.

• The risk of losing everything by the balloon popping is too high

• The potential reward of getting money for each tap is not worth the risk

• It is a game of chance where the odds are not in your favor

Frequency is the number of cycles per second in a periodic waveform.

• Frequency is measured in Hertz (Hz).

• It determines the pitch of a sound wave.

• Higher frequency means higher pitch and vice versa.

• Frequency is used in various fields like electronics, physics, and communication.

• Example: The frequency of a radio station is 98.5 MHz.

Key concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability for objects to be treated as instances of their parent class or their own class.

• Abstraction: Hiding complex implementation details and showing only the necessary features to the outside world.

TIG welding uses a non-consumable tungsten electrode to create the weld, while MIG welding uses a consumable wire electrode.

• TIG welding requires more skill and precision compared to MIG welding.

• TIG welding produces higher quality welds with less spatter and distortion.

• MIG welding is faster and more versatile for thicker materials and outdoor applications.

• TIG welding is commonly used for thin materials and critical applications like aerospace.

• MIG welding is easier to learn and...read more

Cloud computing is the delivery of computing services over the internet, allowing users to access and store data on remote servers.

• Cloud computing allows users to access data and applications from any device with an internet connection.

• The basic deployment models of cloud computing are public, private, hybrid, and community clouds.

• Public clouds are owned and operated by third-party cloud service providers, offering resources like storage and virtual machines to the public.

• Pri...read more

Unit process involves a series of operations to achieve a specific goal, while unit operation is a single step in a process.

• Unit process involves multiple unit operations to achieve a specific goal.

• Unit operation is a single step in a process that involves physical or chemical changes.

• Examples of unit processes include distillation, filtration, and crystallization.

• Examples of unit operations include mixing, drying, and evaporation.

The generation voltage in India varies depending on the location and power plant.

• The voltage ranges from 110V to 440V depending on the location.

• The power plants generate electricity at different voltages.

• The national grid operates at a voltage of 400kV and 765kV.

• India has a mix of AC and DC power transmission systems.

High voltage is used for transmission to reduce power loss and increase efficiency.

• High voltage reduces the current required for a given amount of power, which reduces power loss due to resistance in the transmission lines.

• Lower current also means smaller conductors can be used, reducing material and installation costs.

• High voltage transmission is more efficient over long distances, reducing the need for additional power generation.

• Examples of high voltage transmission system...read more

Yes, I have prior experience in PHP scripting and can perform CRUD operations.

• To create a record, use INSERT INTO statement

• To read a record, use SELECT statement

• To update a record, use UPDATE statement

• To delete a record, use DELETE statement

• Example: INSERT INTO users (name, email) VALUES ('John Doe', 'johndoe@example.com')

• Example: SELECT * FROM users WHERE id = 1

• Example: UPDATE users SET name = 'Jane Doe' WHERE id = 1

• Example: DELETE FROM users WHERE id = 1

Constructor initializes an object, destructor cleans up resources. Polymorphism allows objects to be treated as instances of their parent class. Static function belongs to the class, not instances. Volatile keyword indicates a variable may be changed unexpectedly.

• Constructor initializes an object when it is created. Example: 'Car c = new Car();'

• Destructor cleans up resources when an object is destroyed. Example: 'delete ptr;'

• Polymorphism allows a child class to be treated as ...read more

2G, 3G, 4G, and 5G are different generations of mobile network technology.

• 2G refers to second-generation mobile networks that primarily provided voice and text messaging services.

• 3G introduced faster data transfer speeds, enabling internet browsing, video calling, and multimedia services.

• 4G further improved data speeds, offering high-quality video streaming, online gaming, and advanced mobile applications.

• 5G is the fifth generation of mobile network technology, designed to pr...read more

Replace few letters before @ in email id with star and print the email id.

• Identify the position of @ in the email address

• Replace few letters before @ with *

• Print the modified email id

Electrosteel is a leading manufacturer of ductile iron pipes and fittings for water and wastewater transportation.

• Electrosteel was established in 1955 in India.

• The company specializes in manufacturing ductile iron pipes and fittings for water and wastewater transportation.

• Electrosteel has a strong presence in the infrastructure sector and has supplied its products for various projects in India and abroad.

• The company is known for its high-quality products and innovative soluti...read more

Hydraulic systems use liquid to transmit power while pneumatic systems use gas.

• Hydraulic systems are typically used for heavy-duty applications such as construction equipment and aircraft landing gear.

• Pneumatic systems are often used in lighter applications such as air brakes on trucks and buses.

• Hydraulic systems are generally more powerful and can operate at higher pressures than pneumatic systems.

• Pneumatic systems are typically less expensive and easier to maintain than hyd...read more

Yes, I have trained a convolutional neural network from scratch to classify images of different dog breeds.

• Researched and collected a dataset of images of various dog breeds

• Preprocessed the images by resizing and normalizing them

• Designed a convolutional neural network architecture using TensorFlow

• Trained the model using the dataset and adjusted hyperparameters for better performance

• Evaluated the model's performance using metrics like accuracy and loss

• Fine-tuned the model to i...read more

Various motor types include AC, DC, stepper, and servo motors, each serving unique applications in engineering and automation.

• AC Motors: Operate on alternating current; examples include induction and synchronous motors.

• DC Motors: Run on direct current; types include brushed and brushless motors.

• Stepper Motors: Move in discrete steps, ideal for precise control; commonly used in 3D printers.

• Servo Motors: Provide precise control of angular position; used in robotics and automati...read more