Note : In general, be upbeat and positive. Never be negative. Rehearse your answers and time them. Never talk for more than 2 minutes straight.
Don′t try to memorize answers word for word. Use the answers shown here as a guide only, and don′t be afraid to include your own thoughts and words. To help you remember key concepts, jot down and review a few key words for each answer. Rehearse your answers frequently, and they will come to you naturally in interviews.
Question (1) : Tell me about yourself ?
TRAPS: Beware; about 80% of all interviews begin with this “innocent” question. Many candidates, unprepared for the question, skewer themselves by rambling, recapping their life story, delving into ancient work history or personal matters.
BEST ANSWER: Start with the present and tell why you are well qualified for the position. Remember that the key to all successful interviewing is to match your qualifications to what the interviewer is looking for. In other words you must sell what the buyer is buying. This is the single most important strategy in job hunting.
So, before you answer this or any question it′s imperative that you try to uncover your interviewer′s greatest need, want, problem or goal.
To do so, make you take these two steps:
1. Do all the homework you can before the interview to uncover this person′s wants and needs (not the generalized needs of the industry or company)
2. As early as you can in the interview, ask for a more complete description of what the position entails. You might say: “I have a number of accomplishments I′d like to tell you about, but I want to make the best use of our time together and talk directly to your needs. To help me do, that, could you tell me more about the most important priorities of this position? All I know is what I (heard from the recruiter, read in the classified ad, etc.)”
So, before you answer this or any question it′s imperative that you try to uncover your interviewer′s greatest need, want, problem or goal.
To do so, make you take these two steps:
1. Do all the homework you can before the interview to uncover this person′s wants and needs (not the generalized needs of the industry or company)
2. As early as you can in the interview, ask for a more complete description of what the position entails. You might say: “I have a number of accomplishments I′d like to tell you about, but I want to make the best use of our time together and talk directly to your needs. To help me do, that, could you tell me more about the most important priorities of this position? All I know is what I (heard from the recruiter, read in the classified ad, etc.)”
Question (2) : What is your favourite subject & why ?
Answer :- It would be easy just to name a favourite subject and leave it at that. But the interviewer is trying to understand why you like what you like. When answering a question like this, give reasons or examples for your selection. Don′t state the obvious. If you are asked why CAD is your favourite subject, give more than "Because I like it" or "Because I′m good at it."
Question (3) : Interviewer will ask basic questions from your favourite subject?
Answer :- When you answer what is your favourite subject, Interviewer definitely ask basic questions from that subject to check your interest & whether you truly answered or not. So be prepared with basic concepts & questions of favourite subject.
Question (4) : Where & What you have learned from your industrial trainings?
Answer :- To answer this question, Starting from where & in which department you get your industrial trainings, Work flow of that department, working process, advantages, disadvantages, information about product, Various types of problems. You can add your experience what you have from training.
Question (5) : Questions regarding your minor & major projects?
Answer :- When answering this question it is important to take into consideration the principles of the project, reason of selecting that project, Methodology, Results and Applications, advantages, disadvantages & future scope. Be prepared with conclusion of the topic.
Answer :- Statistics show about 47% of people that interview for a job have little or no knowledge of the company they are interviewing with. You can’t afford to be part of this statistic. Follow these three easy research tips before your next job interview:
1) Visit the company website; look in the “about us” section and “careers” sections.
2) Visit the company’s LinkedIn page (note, you must have a LinkedIn account — its free to sign up) to view information about the company.
3) Google a keyword search phrase like “press releases” followed by the company name; you’ll find the most recent news stories shared by the company Remember, just because you have done your “homework”, it does not mean you need to share ALL of it during the interview! Reciting every fact you’ve learned is almost as much of a turn off as not knowing anything at all!
At a minimum, you should include the following in your answer:
1. What type of product or service the company sells.
2. How long the company has been in business.
3. What the company culture is like OR what the company mission statement is, and how the culture and/or mission relate to your values or personality.
2) Visit the company’s LinkedIn page (note, you must have a LinkedIn account — its free to sign up) to view information about the company.
3) Google a keyword search phrase like “press releases” followed by the company name; you’ll find the most recent news stories shared by the company Remember, just because you have done your “homework”, it does not mean you need to share ALL of it during the interview! Reciting every fact you’ve learned is almost as much of a turn off as not knowing anything at all!
At a minimum, you should include the following in your answer:
1. What type of product or service the company sells.
2. How long the company has been in business.
3. What the company culture is like OR what the company mission statement is, and how the culture and/or mission relate to your values or personality.
Question (7) : Why you want to join our company ?
Answer :- It is one of the reputed and fast growing company in the _____ Industry,It has a so many branches in India as well as throughout the world. This Company was founded in ______(year), The CEO of the Company is______(Name),This Company having the Project in Banking Sector, Govt Sector and So on.The growth rate of this company is_____(%)in the ______(year). These all i heared about this company.
TRAPS: Believe it or not, this is a killer question because so many candidates are unprepared for it. If you stammer or ad lib you’ve blown it.
BEST ANSWER: By now you can see how critical it is to apply the overall strategy of uncovering the employer’s needs before you answer questions. If you know the employer’s greatest needs and desires, this question will give you a big leg up over other candidates because you will give him better reasons for hiring you than anyone else is likely to…reasons tied directly to his needs.
Whether your interviewer asks you this question explicitly or not, this is the most important question of your interview because he must answer this question favorably in is own mind before you will be hired. So help him out! Walk through each of the position’s requirements as you understand them, and follow each with a reason why you meet that requirement so well.
Whether your interviewer asks you this question explicitly or not, this is the most important question of your interview because he must answer this question favorably in is own mind before you will be hired. So help him out! Walk through each of the position’s requirements as you understand them, and follow each with a reason why you meet that requirement so well.
Question (9) : What is Carnot engine?
Answer : It was being designed by Carnot and let me tell you that Carnot engine is an imaginary engine which follows the Carnot cycle and provides 100% efficiency.
Answer : It was being designed by Carnot and let me tell you that Carnot engine is an imaginary engine which follows the Carnot cycle and provides 100% efficiency.
Question (10) : What is the difference between P11 and P12 Pipes?
Answer : P11 the chromium molybdenum composition that is 1% of chromium and 1/4% of molybdenum, P12 the chromium molybdenum composition that is 1% of chromium and 2% of molybdenum.
Answer : P11 the chromium molybdenum composition that is 1% of chromium and 1/4% of molybdenum, P12 the chromium molybdenum composition that is 1% of chromium and 2% of molybdenum.
Question (11) : State Laws of conservation of energy?
Answer : According to the laws of conservation of energy, “energy can neither be created nor be destroyed. It can only be transformed from one form to another.”
Answer : According to the laws of conservation of energy, “energy can neither be created nor be destroyed. It can only be transformed from one form to another.”
Question (12) : Is the boiler a closed system?
Answer : Yes definitely the boiler is a closed system.
Answer : Yes definitely the boiler is a closed system.
Question (13) : What is the importance of the Thermodynamics in the field of Mechanical Engineering?
Answer :- All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers.
Answer :- All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers.
Question (14) : Which formula forms a link between the Thermodynamics and Electro chemistry?
Answer : Gibbs Helmholtz formula is the formula which forms the link between the thermodynamics and electromagnetism.
ΔHs/R = [∂ lnp /∂ (1/T)]x
where: x – mole fraction of CO2 in the liquid phase
p – CO2 partial pressure (kPa)
T – temperature (K)
R – universal gas constant
α – mole ratio in the liquid phase (mole CO2 per mole of amine)
Answer : Gibbs Helmholtz formula is the formula which forms the link between the thermodynamics and electromagnetism.
ΔHs/R = [∂ lnp /∂ (1/T)]x
where: x – mole fraction of CO2 in the liquid phase
p – CO2 partial pressure (kPa)
T – temperature (K)
R – universal gas constant
α – mole ratio in the liquid phase (mole CO2 per mole of amine)
Question (15) : Which is the hardest compound known?
Answer : Diamond.
Answer : Diamond.
Question (16) : Which has more efficiency: Diesel engine or Petrol engines?
Answer : Off course Diesel engine has the better efficiency out of two.
Answer : Off course Diesel engine has the better efficiency out of two.
Question (17) : How many Laws of Thermodynamics are there?
Answer : There are four laws of the thermodynamics.
Zeroth law of thermodynamics: If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other. This law helps define the notion of temperature.
Answer : There are four laws of the thermodynamics.
Zeroth law of thermodynamics: If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other. This law helps define the notion of temperature.
First law of thermodynamics: Because energy is conserved, the internal energy of a system changes as heat flows in or out of it. Equivalently, machines that violate the first law (perpetual motion machines) are impossible. Heat is the flow of thermal energy from one object to another.
Second law of thermodynamics: The entropy of any isolated system cannot decrease. Such systems spontaneously evolve towards thermodynamic equilibrium — the state of maximum entropy of the system. Equivalently, machines that violate the second law (perpetual motion machines) are impossible.
Third law of thermodynamics: The entropy of any pure substance in thermodynamic equilibrium approaches zero as the temperature approaches zero. The entropy of a system at absolute zero is typically zero, and in all cases is determined only by the number of different ground states it has.
Question (19) : What is the difference between Critical Speed and Whirling Speed?
Answer :- In Solid mechanics, in the field of rotor dynamics, the critical speed is the theoretical angular velocity which excites the natural frequency of a rotating object, such as a shaft, propeller or gear. As the speed of rotation approaches the objects natural frequency, the object begins to resonate which dramatically increases system vibration. The resulting resonance occurs regardless of orientation.Whirling Speed is due to the unbalanced forces acting on a rotating shaft.
Question (20) : What is Hess Law?
Answer : According to the Hess law the energy transfer is simply independent of the path being followed. If the reactant and the product of the whole process are the same then same amount of energy will be dissipated or absorbed.
Question (20) : What is Hess Law?
Answer : According to the Hess law the energy transfer is simply independent of the path being followed. If the reactant and the product of the whole process are the same then same amount of energy will be dissipated or absorbed.
Question (21) : Explain Second Law of Thermodynamics?
Answer :- The entropy of the universe increases over time and moves towards a maximum value.
Answer :- The entropy of the universe increases over time and moves towards a maximum value.
Question (21) : Compare Brayton Cycle and Otto Cycle?
Answer :- The heat addition and rejection processes in Otto cycle are of constant volume, whereas in Brayton cycle, they are of constant pressure.
-Otto cycle is the ideal cycle for spark ignition engines.
-Brayton cycle is the ideal cycle for gas power turbines.
Answer :- The heat addition and rejection processes in Otto cycle are of constant volume, whereas in Brayton cycle, they are of constant pressure.
-Otto cycle is the ideal cycle for spark ignition engines.
-Brayton cycle is the ideal cycle for gas power turbines.
Question (22) : What is the purpose of Scrapper Ring?
Answer :- Scrap the excess lube oil from the cylinder walls. there by preventing oil from entering combustion zone.
Answer :- Scrap the excess lube oil from the cylinder walls. there by preventing oil from entering combustion zone.
Question (23) : What is DTSI Technology?
Answer :- DTSI stands for Digital Twin Spark Plug Ignition. The vehicles with DTSI Technology use 2 spark plugs which are controlled by digital circuit. It results in efficient combustion of air fuel mixture.
• Digital - Since the spark generation will be initiated by a microchip.
• Twin - Since two spark plugs will be used.
• Spark ignition - Since the ignition will be done via a spark.
Answer :- DTSI stands for Digital Twin Spark Plug Ignition. The vehicles with DTSI Technology use 2 spark plugs which are controlled by digital circuit. It results in efficient combustion of air fuel mixture.
• Digital - Since the spark generation will be initiated by a microchip.
• Twin - Since two spark plugs will be used.
• Spark ignition - Since the ignition will be done via a spark.
Question (24) : How to Find, Ductile-Brittle Transition Temperature in Metals?
Answer :- The point at which the fracture energy passes below a pre-determined point for a standard Impact tests. DBTT is important since, once a material is cooled below the DBTT, it has a much greater tendency to shatter on impact instead of bending or deforming.
Answer :- The point at which the fracture energy passes below a pre-determined point for a standard Impact tests. DBTT is important since, once a material is cooled below the DBTT, it has a much greater tendency to shatter on impact instead of bending or deforming.
Question (25) : What is the importance of Thermodynamics?
Answer :- All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers.
Answer :- All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers.
Question (26) : How a Diesel Engine Works as Generator?
Answer :- Diesel engine is a prime mover, for a generator, pump,and for vehicles etc. generator is connected to engine by shaft. mostly in thermal power plat ,there is an engine is used to drive generator to generate power.
Question (27) : State difference between AnitiFriction Bearing and Journal Bearing?
Answer :- Generally, journal bearings have higher friction force, consume higher energy and release more heat, but they have larger contact surface, so normally used in low speed high load applications. In anti friction bearings friction is less. One object just rolls over each other.
Answer :- Diesel engine is a prime mover, for a generator, pump,and for vehicles etc. generator is connected to engine by shaft. mostly in thermal power plat ,there is an engine is used to drive generator to generate power.
Question (27) : State difference between AnitiFriction Bearing and Journal Bearing?
Answer :- Generally, journal bearings have higher friction force, consume higher energy and release more heat, but they have larger contact surface, so normally used in low speed high load applications. In anti friction bearings friction is less. One object just rolls over each other.
Question (28) : What is the difference between Technology and Engineering?
Answer :- Engineering is application of science. Technology shows various methods of Engineering. A bridge can be made by using beams to bear the load,by an arc or by hanging in a cable; all shows different technology but comes under civil engineering and science applied is laws of force/load distribution.
Answer :- Engineering is application of science. Technology shows various methods of Engineering. A bridge can be made by using beams to bear the load,by an arc or by hanging in a cable; all shows different technology but comes under civil engineering and science applied is laws of force/load distribution.
Question (29) : What are the Advantages and Disadvantages of using LPG in Car?
Answer :- Advantages
Answer :- Advantages
1. Complete combustion
2. Fuel saving
3. Homogenous combustion
Disadvantages
1. As complete combustion is occurring ,more heat liberated,not advised for long journey, engine will be over heated
2. Installation is difficult
3. Reduce engine life efficiency
2. Fuel saving
3. Homogenous combustion
Disadvantages
1. As complete combustion is occurring ,more heat liberated,not advised for long journey, engine will be over heated
2. Installation is difficult
3. Reduce engine life efficiency
Question (30) : What is the difference between Speed and Economic Speed?
Answer :- The rated speed tells us about the maximum speed which can be achieved by a vehicle or some other machine but the economical speed means the speed limit at which the machine works efficiently with least consumption of fuel.eg-in normal bikes(not racing),the max.speed limit shown on speedometer is upto 120 kmph but companies always advice their customers to drive such bikes at around 60 kmph to have maximum mileage.
