Sunday, April 2, 2023

Common mechanical engineering questions with answers asked in interview!!!!!

 

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  1. What is your understanding of the first and second laws of thermodynamics?

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another. The second law of thermodynamics states that the entropy of an isolated system will tend to increase over time, and that this tendency towards disorder is irreversible.

  1. How would you design a gearbox to transmit a certain amount of power?

To design a gearbox, you need to calculate the torque and speed requirements of the system, and then choose gears that are capable of transmitting the required power. You will also need to consider factors such as efficiency, noise, and wear.

  1. Can you explain the difference between ductile and brittle materials?

Ductile materials are those that can be deformed without fracturing, while brittle materials fracture easily when subjected to stress. Metals like steel are typically ductile, while ceramics and some polymers are brittle.

  1. What is the difference between stress and strain?

Stress is a measure of the force per unit area applied to a material, while strain is a measure of the deformation that occurs as a result of that stress. Stress is typically measured in units of force per unit area (such as psi or Pa), while strain is a dimensionless quantity.

  1. Can you describe how you would perform a finite element analysis (FEA) of a structure?

To perform FEA of a structure, you need to first create a computer model of the structure, including all relevant geometric and material properties. You then apply loads and constraints to the model, and use FEA software to calculate the resulting stresses and strains.

  1. How would you approach designing a suspension system for a vehicle?

To design a suspension system, you need to consider factors such as ride comfort, handling, and stability. You will need to choose appropriate springs, shock absorbers, and other components based on the vehicle's weight, speed, and intended use.

  1. What is the difference between mass and weight?

Mass is a measure of the amount of matter in an object, while weight is a measure of the force exerted on an object by gravity. Mass is typically measured in units of kilograms or pounds, while weight is measured in units of newtons or pounds-force.

  1. Can you explain the different types of gears and their applications?

There are many different types of gears, including spur gears, helical gears, bevel gears, and worm gears. Each type has its own advantages and disadvantages, and is suited to different applications based on factors such as speed, torque, and noise.

  1. What is the difference between heat and temperature?

Heat is a form of energy that is transferred between objects as a result of a temperature difference. Temperature is a measure of the average kinetic energy of the molecules in an object, and is typically measured in units of degrees Celsius or Fahrenheit.

  1. Can you describe how you would calculate the stress in a given material?

To calculate the stress in a material, you need to divide the force applied to the material by the area over which the force is applied. Stress is typically measured in units of force per unit area (such as psi or Pa).

  1. How do you ensure safety in the design and operation of mechanical systems?

To ensure safety, you need to consider factors such as material strength, load capacity, and environmental conditions. You should also follow established design and operating standards, and conduct thorough testing and inspection of all components.

  1. What is the difference between a compression and tension spring?

A compression spring is a spring that is designed to be compressed, while a tension spring is designed to be stretched. Compression springs are typically used to store energy, while tension springs are used to apply force.

You can read B.Tech Guide Book & Campus Placement Guide Book by the author to support the blog 

 

Friday, March 31, 2023

Asking thoughtful questions during a job interview!!!!!

 

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Asking thoughtful questions during a job interview can help you learn more about the position and the company, demonstrate your interest and enthusiasm, and make a good impression on the interviewer. Here are some questions you may consider asking:

  1. Can you describe the day-to-day responsibilities of this position?

  2. What are the most important skills or qualities for someone in this position to have?

  3. How would you describe the company culture?

  4. What opportunities are there for growth and advancement within the company?

  5. Can you tell me about any recent projects the team has worked on?

  6. How does this position fit into the overall goals and strategy of the company?

  7. Can you tell me about the training and support that's provided to new hires?

  8. What do you enjoy most about working at this company?

  9. How is success in this position measured?

  10. What challenges or opportunities do you see for the company in the coming years?

Remember, the questions you ask should be tailored to the position and company you're interviewing for, and demonstrate your interest and enthusiasm for the role. Additionally, it's important to listen carefully to the interviewer's responses and ask follow-up questions to show that you're engaged and interested in the conversation.

You can read B.Tech Guide Book & Campus Placement Guide Book by the author to support the blog

Answering behavioral questions!!!!

 

  

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Answering behavioral questions in an interview requires preparation and practice. Behavioral questions typically ask you to describe a specific situation, the actions you took, and the outcome of your actions. The best way to approach these questions is to use the STAR method:

  1. Situation: Start by describing the situation or task you were faced with.

  2. Task: Explain the task or goal you were trying to accomplish.

  3. Action: Describe the actions you took to address the situation or accomplish the task.

  4. Result: Finally, describe the outcome of your actions and how they impacted the situation or task.

Here are some additional tips to keep in mind when answering behavioral questions:

  • Be specific: Use specific examples from your past experiences to illustrate your answers.

  • Be concise: Stick to the point and avoid rambling or going off on tangents.

  • Be honest: Don't exaggerate your accomplishments or lie about your experiences.

  • Highlight your skills: Emphasize the skills and qualities you possess that make you a good fit for the job.

  • Practice: Review common behavioral questions and practice your responses with a friend or family member.

By following these tips and using the STAR method, you can provide thoughtful, comprehensive answers to behavioral questions and impress your interviewer.

 You can read B.Tech Guide Book & Campus Placement Guide Book by the author to support the blog

 

Preparing for a job interview!!!!

  

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Preparing for a job interview can be nerve-wracking, but with some planning and preparation, you can feel confident and ready to impress the interviewer. Here is a step-by-step script on how to prepare for a job interview:

Step 1: Research the Company and Position Before your interview, you should do your homework on the company and the position you are applying for. Visit the company's website, read their mission statement and values, and familiarize yourself with their products or services. Look for recent news or press releases to get a sense of what's happening at the company. Also, review the job description to ensure that you understand the responsibilities and requirements of the position.

Step 2: Practice Your Responses Practice answering common interview questions, such as "Tell me about yourself" and "What are your strengths and weaknesses?" Prepare responses that highlight your skills and experience that align with the job requirements. You can also practice answering behavioral questions, which ask you to provide specific examples of past experiences that demonstrate your skills and qualifications.

Step 3: Dress for Success Dress professionally for your interview, even if it's a virtual interview. Make sure your clothes are clean and pressed, and avoid wearing anything too casual or revealing. Your appearance should project confidence and professionalism.

Step 4: Gather Your Materials Bring copies of your resume, a list of references, and a pen and notepad to your interview. Make sure your resume is up to date and tailored to the job you are applying for. You can also prepare a portfolio of work samples or certifications that demonstrate your skills and experience.

Step 5: Plan Your Route If you are interviewing in person, plan your route to the interview location. Allow extra time for traffic or unexpected delays. If you are doing a virtual interview, test your internet connection and make sure your computer, webcam, and microphone are working properly.

Step 6: Follow Up After your interview, be sure to send a thank-you note to the interviewer. This is a great opportunity to reiterate your interest in the position and highlight any qualifications you may have forgotten to mention in the interview.

By following these steps, you can feel confident and prepared for your job interview. Good luck!

You can read B.Tech Guide Book & Campus Placement Guide Book by the author to support the blog

 

Saturday, February 11, 2023

Some Jobs' Dark Side


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Jobs are essential for one's social standing in a state like Assam. People define you by that. That is why many people voluntarily engage in various primary schools, colleges, offices without pay. Sometimes Governments provincialize them or sometimes not. It all depends on multiple factors local to the governmental level. Often we see people retiring with no pension or a few hundred rupees as pension as they may have been regularized a few years ahead of retirement. Once you are in such a state, no one cares about you. In our college days, we did not understand these things. Now that we have seen things and met people, we know that there is a dark side.
In our colleges, we had many such senior teachers (very competent) on either a contractual basis or a 3PF basis. Their state continued like that. Some got regularized . When they reached retirement age, they were without a pension and had to continue in some other private college. Many think that it is their zeal to teach. It may be, but it is just another day's struggle for many. Many people mask it by the cover of interest. I have seen many retired people (near and dear ones), and a few likes to go out and work unless and until they have a severe financial constraint. Therefore, one should be very careful about one's future. One should not be very optimistic about contractual and 3PF types of jobs. These types are suitable when you have other back up or you are doing it temporarily for the next big thing. One should move on at the first opportunity. Above all, if you are good at something, you should charge for that. 
 
If you have become alert due to this post try reading those books by the author to support the blog.
 

Sunday, January 29, 2023

Retiring early

 
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In our days, we did not know anything about retiring early. We have seen people retiring at 60. Earlier, it was 58. People work in an office comfortably for up to 60th years. But traditional jobs are only available to a small number. A select few get such a job. Most of the others have to contend with private jobs & contractual jobs at various government entities with less pay. People remain worried and unhappy. The private sector was different when we were in college. Some organizations paid high amounts, and students longed to get a job in those organizations. The time has changed, and those organizations' entry-level salaries have stagnated for years.
 
Moreover, the Government also revised the payment policy making Government sector attractive. Over the years, the Government sectors have been reducing the vacancies because the offices have always been overstaffed. Now, there are fewer requirements owing to digitization. This will continue. Moreover, factories are moving towards automation, needing fewer people in manufacturing. That is why private organizations are still holding back even though the Government is spending so much in the manufacturing sector. There is no earning and hence no consumption. So, where will they sell the products? 
 
Keeping this in mind, the students must prepare for the future. Apart from the conventional approach, the students should keep an open mind. The high-paying jobs require modern skills. You have to be proficient in them. Many people will say that private jobs do not give you security. The government sector provides employment security and comfort at the cost of long years of grinding at low pay.

On the other hand, you have new-age technology-based companies. You can draw high salaries and retire early. You can reach the final goal within a few years and then move on to do something else. People like us are already late. The path is set, but your world will be much more different. The conventional way of thinking might make you more unhappy. Therefore, one should be flexible to move in any direction.

 
If you like the post you can read or gift the author's books “B.Tech Guide Book" & "Campus Placement Guidebook" available worldwide in Amazon in Kindle format. These book will help you strategize your life. You will find many important things which are not discussed anywhere. Click in the link below.

 

 

B.Tech Guidebook (Click)


 Campus Placement Guidebook(click)

 

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16. A few observations regarding AI

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The Night


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Disclaimer from the author: If you are reading it, I want to say that I write short stories rarely unlike painting. So, my writing may not be up to the mark. Personally, I do not believe in ghosts & witchcraft. This story is just a fiction. All is made up except the locations. Nothing else. Read it with an open mind. Above all, this story is dedicated to Bibhutibhusan Bandupadhya, a renowned writer. Below, there are two books which are not fiction. If you are a student , you can read them. (MS)
 

 

Now, read the story: The Night 

Summer in Guwahati is excruciating. The heat from the concrete jungle renders it uninhabitable. That night, I waited for a shared cab near Basistha for quite some time. The bus to Jorhat left at 9 p.m. All of the cabs departing from Jalukbari were completely packed. I managed to hail a cab and board it. A kind-hearted fellow traveller took pity on me and made room for me to sit. We were at our destination in a matter of minutes. The time was 8.30 p.m. It was still early. I headed to the boarding point with a heavy mountain backpack on my back. It felt like a tonne of weight. When I got to the boarding point at the end of the flyover, I found a good spot to keep an eye on the buses. The buses came to a halt around this location. People would check for their bus and then get up after they were confident that the bus number on their tickets was correct.

The boarding station was teeming with temporary businesses. They sold the minimal necessities for a traveller: a pan, a cigarette, water bottles, and tea. Nobody comes here expecting to have a good dining experience. You see worried-looking boarders with a lot of luggage. Then there were the hawkers and ticket sellers who roamed the streets in search of clients and boarders. Ticket sellers would rush to every new face that appeared at the point, as if they were long-lost cousins. Buses continued to arrive, and the police officer in command of the area signalled them to go. The buses were unconcerned.

With each passing minute, standing with a bag became more difficult. Even though the bus operator said the bus would arrive at 8.30 p.m., I didn't believe them. It was necessary to add 30 minutes. But one has to wonder, what if they were correct? It was a game of faith. Anyway, I was perspiring tremendously. It was a scorching day, around 30 degrees Celsius. The humidity level was also rather high. The bus came at 9.05 p.m., and I breathed a sigh of relief when I saw it. I slumped on the solitary seat number 16. The seat appeared to be comfy. The ticket checker arrived to confirm, and everything was OK. When I tried to open the window, it adjusted to my preferences. There was nothing to do but stare outside. A pair of hawkers entered, carrying water bottles and fruits. After much haggling, some passengers purchased some fruits. I went to get a bottle of water. That was the end of it. 

It took another 30 minutes for the bus to proceed. It then came to a halt near an oil depot. It was on the Meghalaya side. The bus then travelled slowly via Jorabat's serpentine route. Except for a few flickering lights seeping out from the cabin, the lights were off and there was full darkness. After a time, everyone turned off their phones and went to sleep. There was nothing to see outside the window. I finally fell asleep after some struggle. 

It was Jakhalabandha when I awoke. The bus pulled over near a hotel. The property appeared to be new. The stores were offering various snacks, biscuits, and sweets, a common sight in Jakhalabandha. Passengers stop here on their way home for a meal and refreshments. I dashed to the restroom to freshen up. It was now time to have something. The servers carried several thalis and served immediately. To keep things light, I grabbed a roti thali. The headache that had been bothering me for some time had gone away after the late meal. The bus came to a halt for 45 minutes and began honking. The last passengers rushed in, terrified of missing the bus. I looked at my wristwatch, which read 12.45 a.m. Jorhat may take another couple of hours to arrive. I would reach as early as 3 p.m. because the bus was heading for Tinsukia. For a while, the many thoughts kept me awake. I had no idea when I dozed asleep back then.

It was Dergaon when I awoke. Some people were getting off. On my watch, it was 2.25 a.m. I made the decision not to sleep. Jorhat was nearby. We arrived at Baruah Chari Ali around 3 a.m. There was quite a hubbub. Passengers from Jorhat were attempting to flee with their luggage. I sat for a little longer to clear off. The autowallahs were swarming around the bus entrance, looking for passengers. By the time I got off, the autos had begun to go. Now I understood why they were hurrying like crazy. When I looked around, all I saw were closed stores with flickering lights. The chari ali appeared to be devoid of human life in all directions.

After some time, I grudgingly began heading towards J.B. College. The D.C. office was gloomy next to J.B. College. I kept walking gently. On both sides of the road, there were rows of eucalyptus trees. Some roadway lights were obscured by overgrown tree branches. Taking a left at Devi Charan Chari Ali, I could see the circuit house's massive floodlights. I turned to face the sentry post. Someone was stationed at the post. His head protruded from the main desk, although it was hidden. He may be perched on a low stool. I continued walking. My shoulder was beginning to ache at this point. Then I came to the by-lane that led to Jayabhawan Primary School. The entrance gate of the school was dimly lit by a hundred power light. Beyond that, it was pitch black.

Suddenly, an incident occurred to me. A good-hearted chowkidar used to work there back then. Students adored him, but he became insane and returned to his rural home, never to return. Some claimed he roamed at night at Rajmao pukhuri, directly across the street from the school. He might have been possessed by an evil spirit. The Ahom monarchs dug the pond a long time ago. Even during the day, the location appeared forlorn, with all the trees surrounding it dating back centuries. Another incidence caused me to permanently avoid that road. We knew someone who lived close.  He liked to go for a stroll in the evening. He disappeared one day and never returned. The next day, the police notified his family that his body had been discovered floating in the pond in the morning. The corpse was discovered by villagers early in the morning and reported to the neighbouring police station.

With all of my thoughts, I arrived to the Dass & Co chari ali. Taking the right turn, I could see the ASEB office as I passed Dass & Co retail store. For many years, it was the highest structure in town. It has lost its original allure and majesty. Streetlights were spaced far apart beyond this point. I double-checked the watch. It was half past three o'clock in the morning. My entire body was bathed in perspiration, and the air was motionless. I could see the silhouette of the ancient simalu tree from a distance. The tree was old, with roots dangling from the upper branches. It appeared to be there for ages. A derelict government home has been standing on the side of the tree for years. The darkness added to the sense of a ghostly place. I could hear my footsteps and the faint howling of jackals from afar. A few dogs were sleeping in the vicinity of Hazarika's grocery shop. The dogs all raised their heads in unison as they looked at me. My body was hit by a chilly stream. One of them began to growl. Could they come after me? Should I run or not? There had been reports of the dog attacking individuals late at night. Fortunately, they did not break their coil and continued to stare at me as I moved carefully passed them. That was a huge relief. One of my buddies had told me that this place was haunted. People were frequently bothered by a ghostly lady in a white saree. At the thought of it, I grew anxious and paced my feet . I couldn't move much faster and tripped a couple times. The bag appeared to be much heavier. My imagination began to run wild; what if the ghost had already leaped over my shoulder? The notion made me break out in cold sweat on my brow. My mouth had dried up. Then I noticed a light coming from the Bongalpukhuri direction. A speedy car whizzed by in the blink of an eye. The car was most likely attempting to catch a bus. The folks gave me a strange look. It boosted my confidence, and I broke into a run to go to Jorhat College. I turned around, huffing furiously. There was blackness as if something was staring at me. I went on for a few more minutes. My adrenaline rush gradually subsided. The sun had begun to rise by the time I arrived at Bongalpukhuri. It was early in the morning. People came out for morning walks with a cane stick. Some were familiar.Then,  it was a smooth walk from here.

Health is wealth for students

   (Photo source:pexels.com)   Nowadays, when I look around, most of the students are either obese or have some kind of health issues. ...