As you prepare for your interview, you may be considering which questions the employer is going to ask you. While there’s no way to know for sure what topics will be covered, there are several popular interview questions you can expect to be asked.

Every interviewer is different and each one’s questions may vary. By preparing answers for these common interview questions, you can develop compelling talking points to make a great impression during your next job interview.
Here’s how to answer the 15 most common interview questions:
1. Tell me about yourself.

Your interviewers will likely start out with a question about you and your background to get to know you. Start by giving them an overview about your current position or activities then provide the most important and relevant highlights from your background that make you the most qualified for the role. If you’d like, it is generally acceptable to include some light personal details about things like your pets, hobbies or family. Doing so can help you be more memorable and personable to the interviewer.

Example: “Currently, I serve as the assistant to three of the company’s five executive team members including the CEO. During my time at the organisation, I have been recognised for my time management skills, writing abilities and commitment to excellence.

From my 12 years of experience as an executive assistant, I’ve developed the ability to anticipate roadblocks and create effective alternative plans. My greatest value to any executive is my ability to work independently, freeing up their time to focus on the needs of the business.
It’s clear that you’re looking for someone who understands the nuances of managing a CEO’s busy day and can proactively tackle issues. As someone with a sharp eye for detail and a drive to organise, I thrive on making sure every day has a clear plan and every plan is clearly communicated.”

2. What makes you unique?

Employers often ask this question to identify why you might be more qualified than other candidates they’re interviewing. To answer, focus on why hiring you would benefit the employer. As you don’t know the other applicants, it can be challenging to think about your answer in relation to theirs. Addressing why your background makes you a good fit will let employers know why your traits and qualifications make you well prepared.

Example: “What makes me unique is my experience of four years in retail. Because I’ve had first-hand experience fielding shoppers’ questions, feedback and complaints, I know what customers want. I know what it takes to create a positive consumer experience through marketing.”

3. Why do you want to work here?

Interviewers often ask this question as a way to determine whether or not you took time to research the company and to learn why you see yourself as a good fit. The best way to prepare for this question is to do your homework and learn about the products, services, mission, history and culture of this workplace. In your answer, mention the aspects of the company that appeal to you and align with your career goals. Explain why you’re looking for these things in an employer.

Example: “The company’s mission to help college graduates pay off their student loan debt speaks to me. I’ve been in that situation and I’d love the opportunity to work with a company that’s making a difference. Finding a company with a positive work environment and values that align with my own has remained a priority throughout my job search and this company ranks at the top of the list.”

4. What interests you about this role?

Like the previous question, hiring managers often include this question to make sure you understand the role and to give you the opportunity to highlight your relevant skills. In addition to thoroughly reading the job description, it can be helpful to compare the role requirements against your skills and experience. Choose a few things you particularly enjoy or excel at and focus on those in your answer.

Example: “I’ve been passionate about user experience design for most of my professional career. I was excited to see this company uses Adobe products because I’m well versed in the entire suite. Also, I’m a huge advocate for applying agile workflows to design. I think it’s the most effective way to tackle large projects. I was able to successfully build and launch an agile process in my previous role as UX manager and we saw considerable improvements in project speed.”

5. What motivates you?

Employers ask this question to gauge your level of self-awareness and ensure your sources of motivation align with the role. To answer, be as specific as possible, provide real-life examples and tie your answer back to the job role.

Example: “Making a true difference in the lives of my patients and their families motivates me to strive for excellence in everything I do. I look forward to seeing my patients’ reaction when we get a positive outcome that will change their lives forever. That’s why I became a nurse and why I’m pursuing a position in pediatrics.”

6. What are you passionate about?

Much like the previous question about motivation, employers might ask what you are passionate about to better understand what drives you and what you care most deeply about. This can help them understand whether you are a good fit for the role and if it fits into your larger goals. To answer, select something you are genuinely passionate about, explain why you’re passionate about it, give examples of how you’ve pursued this passion and relate it back to the job.

Example: “As an experienced, service-oriented professional with more than a decade of experience working in boutique salons, I thrive on creating a welcoming environment for all clients and providing the highest quality skincare services. My specialised training, along with my interpersonal skills, has helped me become adept at developing long-term, trusted relationships that help to build a loyal client base. These relationships are the reason I’m excited to go to work every day.”

7. Why are you leaving your current job?

There are many reasons for leaving a job. Prepare a thoughtful answer that will give your interviewer confidence that you’re being deliberate about this job change. Instead of focusing on the negative aspects of your current or previous role, focus on the future and what you hope to gain in your next position.

Example: “I’m looking for an opportunity that gives me the ability to build closer, long-term relationships with clients. In my current role, the sales cycle is so short that I don’t spend as much time building a rapport with my customers as I’d like. Relationship-building is one of the reasons I chose a career in sales and I look forward to working with a company in which that’s a top priority.”

8. What are your greatest strengths?

This question gives you an opportunity to talk about your technical and soft skills. To answer, share qualities and personal attributes and then relate them back to the role for which you’re interviewing.

Example: “I’m a natural problem solver. I find it rewarding to dig deep and uncover solutions to challenges. It’s like solving a puzzle. It’s something I’ve always excelled at and something I enjoy. Much of product development is about finding innovative solutions to challenging issues, which is what drew me to this career path in the first place.”

9. What are your greatest weaknesses?

It can feel awkward to discuss your weaknesses in an environment where you’re expected to focus on your accomplishments. However, when answered correctly, sharing your weaknesses can show that you are self-aware and want to continuously get better at your job—traits that are extremely attractive to many employers. Remember to start with the weakness and then discuss the measures you’ve taken to improve. This way, you’re finishing your answer on a positive note.

Example: “I sometimes have trouble saying ‘no’ and end up overwhelmed by my workload. Earlier in my career, I would take on so many projects that I’d work evenings and weekends. It was stressful. I realised this was counterproductive so I started using workload management tools and setting better expectations for myself and my teammates.”

10. What are your goals for the future?

Often, hiring managers ask about your future goals to determine whether or not you’re looking to stay with the company in the long term. Additionally, this question is used to gauge your ambition, expectations for your career and your ability to plan ahead. The best way to handle this question is to determine your current career trajectory and how this role plays into helping you reach your ultimate goals.

Example: “I would like to continue developing my marketing expertise as well as my leadership skills over the next several years. One of the reasons I’m interested in working for a fast-growing start-up company is that I’ll have the ability to wear many hats and collaborate with many different departments. I believe this experience will serve me well in achieving my ultimate goal of leading a marketing department someday.”

11. Where do you see yourself in five years?

Understanding how you imagine your life in the future can help employers understand whether the trajectory of the role and company fits in with your personal development goals. To answer, provide general ideas about the skills you want to develop, the types of roles you would like to be in and the things you would like to have accomplished.

Example: “In five years, I’d like to be an industry expert in my field with the ability to train and mentor students and entry-level designers. I would also like to gain specialised knowledge in user experience to be a well-rounded contributor working with design and marketing teams on large scale projects that make a difference in the company and to the global community.”

12. Can you tell me about a difficult work situation and how you overcame it?

This question is often used to assess how well you perform under pressure as well as your problem-solving abilities. Keep in mind stories are more memorable than facts and figures so strive to ‘show’ instead of ‘tell’. This is also an excellent opportunity to show your human side and how you’re willing to go the extra mile without being asked.

Example: “It was the first day of my boss’s two-week vacation and our agency’s highest-paying client threatened to leave because he didn’t feel he was getting the personalised service he was promised. I spent my lunch hour on the phone with him talking through his concerns. We even brainstormed ideas for his next campaign. He was so grateful for the personal attention that he signed another six-month contract before my boss even returned from her trip.”

13. What is your salary range expectation?

Interviewers ask this question to make sure your expectations are in line with the amount they’ve budgeted for the role. If you give a salary range exceedingly lower or higher than the market value of the position, it gives the impression that you don’t know your worth. Research the typical compensation range for the role on Job Portals like indeed and request for the higher side of your range. Be sure to let the hiring manager know if you’re flexible with your rate.

Example: “My salary expectation is between INR XX,XXX and INR XX,XXX, which is the average salary for a candidate with my level of experience in this city. However, I am flexible.”

14. Why should we hire you?

While this question may seem like an intimidation tactic, interviewers generally bring this up to offer you another opportunity to explain why you’re the best candidate. Your answer should address the skills and experience you offer and why you’re a good culture fit.

Example: “I have a passion for application development that’s grown stronger over the course of my five-year career. The company’s mission aligns with my personal values and from my limited time in the office, I can already tell this is the sort of positive culture in which I would thrive. I want to work for a company that has the potential to reshape the industry and I believe you’re doing just that.”

15. Do you have any questions?

This might be one of the most important questions asked during the interview process because it allows you to explore any subject that hasn’t been addressed and shows the interviewer you’re excited about the role. By this point, you’ll likely have already covered most of the basics about the position and the company so take time to ask the interviewer questions about their own experiences with the company and gain tips on how you can succeed if hired.

Example: “What do you love about working for this company? What would success look like in this role? What are some of the challenges people typically face in this position?”

Much like preparing for a test in school, the best way to succeed in your interview is to study and practice. Do research on the company and the job and practice your talking points until you feel confident about your answers. The more you prepare, the more likely you are to leave a lasting impression and outperform fellow candidates.




Joule's Law states, "The change of internal energy of a perfect gas is directly proportional to the change of temperature." Mathematically,
where
m = Mass of the gas, and
c = A constant of proportionality, known as specific heat.
Note: From the Joule's law, we see that whenever a gas expands, without doing any external work and without taking in or giving out heat, its internal energy as well as temperature does not change.





In fact, during school, we have all studied maths every year, some times even cursing the complex calculations and procedures wondering what they have to do with our lives. Come, read on to explore the mathematics in real life!


Algebra
  • Computer Science
  • Cryptology (and the Protection of financial accounts with encrypted codes)
  • Scheduling tasks on processors in a heterogeneous multiprocessor computing network
  • Alteration of pattern pieces for precise seam alignment
  • Study of crystal symmetry in Chemistry (Group Theory)
Differential Equations (Ordinary and Partial) and Fourier Analysis
  • Most of Physics and Engineering (esp. Electrical and Mechanical)
  • Sound waves in air; linearized supersonic airflow
  • Crystal growth
  • Cryocooler modeling
  • Casting of materials
  • Materials science
  • Electromagnetics analysis for detection by radar
  • Material constitutive modeling and equation of state
  • Underwater acoustic signal processing
  • Predict the evolution of crystals growing in an industrial crystallizer
  • Reentry simulations for the Space Shuttle
  • Rocket launch trajectory analysis
  • Trajectory prescribed path control and optimal control problems
  • Motion of a space vehicle
  • Aircraft landing field length
  • Design and analysis of control systems for aircraft
  • Underwater acoustic signal processing
  • Nonlinear dynamics
  • Large scale shock wave physics code development
  • Material constitutive modeling and equation of state
  • Molecular and cellular mechanisms of toxicity
  • Transport and disposition of chemicals through the body
  • Modeling of airflow over airplane bodies
  • Photographic development (Eastman Kodak)
  • Waves in composite media
  • Immuno-assay chemistry for developing new blood tests
  • Radio interferometry
  • Free mesons in nuclear physics
  • Seismic wave propagation in the earth (earthquakes)
  • Heat transfer
  • Airflow over airplane bodies (aerodynamics)
Differential and Computational Geometry
  • Computer aided design of mechanical parts and assemblies
  • Terrain modeling
  • Molecular beam epotaxy modeling (computational geometry)
  • Color balance in a photographic system
  • Optics for design of a reflector
  • Cryptology
  • Airflow patterns in the respiratory tract
Probability and Statistics
  • Calculation of insurance risks and price of insurance
  • Analysis of statistical data taken by a census
  • Reliability and uncertainty of large scale physical simulations
  • Speech recognition
  • Signal processing
  • Computer network design
  • Tracking and searching for submarines
  • Estimation of ocean currents (geostatistics)
  • Paint stripping using lasers
  • Onset and progression of cancer and pre-malignant cells
  • Determining launch schedules to establish and maintain prescribed satellite constellations (also uses Monte Carlo methods)
  • Radar track initiation
  • Aircraft survivability and effectiveness
  • Color sample acceptance tolerance correlation and prediction
  • Determination of sample sizes for color acceptability evaluation (uses advanced statistical methods)
  • Underwater acoustic signal processing
  • Reliability analysis of complex systems
  • Radio interferometry
Numerical Analysis
  • Estimation of ocean currents
  • Modeling combustion flow in a coal power plant
  • Airflow patterns in the respiratory tract (and diff. eqs.)
  • Regional uptake of inhaled materials by respiratory tract
  • Transport and disposition of chemicals through the body (and ODEs + PDEs)
  • Molecular and cellular mechanisms of toxicity (and ODEs + PDEs)
  • Reentry simulations for the Space Shuttle
  • Trajectory prescribed path control and optimal control problems
  • Shuttle/tank separation
  • Scientific programming
  • Modeling of airflow over airplane bodies
  • Electromagnetics analysis for detection by radar
  • Design and analysis of control systems for aircraft
  • Electromagnetics
  • Large scale shock wave physics code development
  • Curve fitting of tabular data
Operations Research and Optimization
  • Network formulation of cut order planning problem
  • Shade sorting of colored samples to an acceptable tolerance by hierarchical clustering
  • Inventory control for factory parts
  • Search for and tracking of submarines
  • Motion of a space vehicle
  • Aircraft survivability and effectiveness
  • Interplanetary mission analysis
  • Radio interferometry
  • Scheduling tasks on processors in a heterogeneous multiprocessor computing network
  • Microwave measurements analysis
  • Coordinate measuring machine (optimization error modeling)
  • Optics for design of a reflector
  • Materials science
  • Reliability and uncertainty of large scale physical simulations




A rocket is an object that is propelled by the ejection of expanding gases that have been generated from propellants, and that does not depend upon external sources. The engine contains its own propellant and obtains forward motion by reactive propulsion. Propulsion is obtained by the ignition of the propellant, whereby the energy of explosion offers an opposite thrust that causes acceleration. Oxygen available in the atmosphere functions as the oxidizer for the fuel. Gases at an extremely high temperature are produced by combustion of solid, liquid, or gaseous fuel in a combustion chamber. These gases pass through a nozzle, and thermal energy is converted into kinetic energy, causing acceleration.

Parts of a Rocket
A rocket is comprised of the following parts:
·         Rocket engines and nozzle
·         Propellant
·         Propellant tank
·         Directional stabilization and navigational devices
·         Structure to hold the parts
·         Wings
·         Rocket tube or shell that covers and streamlines the rocket




Theory of Operation of Rockets
Propellants in the categories of gas, solid, liquid or a mixture of solid and liquid are used in rocket engines. A chemical reaction occurs in the combustion chamber between the fuel and oxidizer. The hot gases accelerate out from the rear of the rocket, causing thrust in the combustion chamber and producing propulsion on the principles of Newton’s Third Law. When the propellant is exhausted rearwards at a high speed, the rocket is propelled forward due to rocket thrust.

Rocket Propellants
The rate of flow of propellants is varied during a flight to control the thrust and speed of the vehicle and to minimize aerodynamic losses. Rocket propellants are of the following types:

Solid Propellant: Oxidiser is included in the fuel. It is simple and safe to manage the fuel. However, the combustion cannot be blocked after ignition of fuel.
Liquid Propellant: Liquid fuel and liquid oxidizer are utilized. During pre-launch, liquid fuel burns gradually until release of the oxidizer, producing sudden fast burning and adequate force for lifting. Regulation of fuel and oxygen supplies can control the rockets.
Hybrid Propulsion: Solid fuel and liquid oxidizer are employed. The solid fuel, when combined with liquid oxidizer, burns quickly. Thrust of the rocket can be varied by controlling the supply of oxygen.

Nuclear Propulsion: Nuclear energy is utilized for superheating of hydrogen gas, when it leaves the rocket at an extremely highspeed. However, safety factors must be considered thoroughly while using nuclear energy.

Advanced Rocket Propulsion Concepts
·         Fusion Rocket Propulsion: Plasma at a high temperature from a fusion reactor is utilized as exhaust from the rocket. This technology is under active research.
·         Antimatter Catalyzed Nuclear Pulsed Propulsion: An extremely interesting and expensive proposal, still being researched. Nuclear pulse propulsion is a technique of propulsion that utilizes nuclear explosions to produce thrust. The capacity of the engine depends upon the size of the nuclear bombs necessary to produce thrust. Making these bombs in small ranges is difficult, and a heavy spacecraft structure is required for larger bombs. Antimatter catalyzed nuclear pulse propulsion is a form of a nuclear pulse propulsion that involves utilization of antimatter as a catalyst in nuclear reactions. By injecting slight antimatter into fuel, fission of the fuel is obtained. Use of antimatter spacecraft are planned to reduce fuel costs significantly.

Forces Acting on a Rocket
During flight, the following major forces act on the rocket:
·         Thrust of the engine
·         Lift
·         Aerodynamic drag that decides the minimum strength of the vehicle to prevent buckling



The fourth generation of mobile connectivity started to make waves in the late 2000s. 4G made mobile internet speeds up to 500 times faster than 3G and allowed support for HD TV on mobile, high–quality video calls, and fast mobile browsing. The development of 4G was a massive feat for mobile technology, especially for the evolution of smartphones and tablets.
4G is now common throughout the world, but things are about to change again. The Internet of Things is now a real possibility and 4G will not be able to manage the huge number of connections that will be on the network. It is expected that there will be more than  20bn connected devices by 2020, all of which will require a connection with great capacity. This is where 5G comes into force.
5G has started to create a hype recently when we saw the first trials of the capabilities of the network taking place. What is more, some of the capabilities of 5G were demonstrated during the 2018 Winter Games in PyeongChang, making the games the most exciting to date for both fans and participants.
So, what makes 5G so different from 4G?
Simply said, 5G is widely believed to be smarter, faster and more efficient than 4G. It promises mobile data speeds that far outstrip the fastest home broadband network currently available to consumers. With speeds of up to 100 gigabits per second, 5G is set to be as much as 100 times faster than 4G.
Low latency is a key differentiator between 4G and 5G. Latency is the time that passes from the moment information is sent from a device until it can be used by the receiver. Reduced latency means that you’d be able to use your mobile device connection as a replacement for your cable modem and Wi-Fi. Additionally, you’d be able to download and upload files quickly and easily, without having to worry about the network or phone suddenly crashing. You’d also be able to watch a 4K video almost straight away without having to experience any buffering time.
5G will be able to fix bandwidth issues. Currently, there are so many different devices connected to 3G and 4G networks, that they don’t have the infrastructure to cope effectively. 5G will be able to handle current devices and emerging technologies such as driverless cars and connected home products.
But it must remember that these scenarios are all still theoretical, and it will take a lot of investment by governments and mobile network operators to make them work. The security aspect of 5G also still needs to be figured out. With a greater number of users and improved services, 5G opens the door to a new level of threat. Governments and mobile operators must ensure they have the correct level of security in place before 5G can be rolled out.

Computers and its uses grew rapidly and widely through out the world. They are used to deal with many tasks due to their various potential. It helps to resolve problems human life encounters in daily life. Therefore, they have more influence on our life. The impact of computer usage on our life obviously identified as Savings of Money, Time and Effort. To understand the depth of computer intervention in human life, have a look at developments happened in the areas of Communication, Education, Utility facilities and Health care.
Within the last 3 decades, computer has been recognized as the most life changing and successful invention solving problems in human life. Today, where business caters, there you find applying computer usage. Look at educational sector, health, transportation, or communication sector, we can see the influence and application of computer. It's difficult to survive a business without adopting computer usage either directly or indirectly in this modern world.
The subject "Computer and Human Life" has become one of the most interesting subject in schools and colleges. Thus, in many essays and group discussions, particularly in schools and colleges, students are often asked to write "How have computers changed our life?" or "Influence of Computers in Human Life".
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