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    Showing posts with label Interview. Show all posts
    Showing posts with label Interview. Show all posts

    Wednesday, April 1, 2020

    Important interview questions about mechanical engineering - Thermodynamics

    Normally any interviewer tries to check whether a candidate is suitable for the present job or not. Based on the type of job or job profile, the interview asks basic questions from different subjects. If the student has grasped the engineering syllabus or course from the basic concepts point of view, he/she must be able to answer the following questions. Read the following interview questions about the 'thermodynamics' subject. These questions might be helpful in the GATE examination too.

    Tuesday, March 24, 2020

    My NPCIL Interview Experience at Mumbai - Anushaktinagar

    My NPCIL  Interview Experience at Mumbai, Anushaktinagar

    I appeared for the NPCIL interview on 05-10-2010 at Anushaktinagar at Mumbai. As I did M.Tech, I was shortlisted directly based on the qualification of M. Tech in Industrial Process Equipment Design (IPED).

    The interview panel was consists of 6-7 people from industries only, No one was from any academic institution.

    Wednesday, March 11, 2020

    Frequently Asked Questions in Mechanical Engineering Jobs Interviews

    1. Difference between 'Thermodynamics and Heat Transfer'

    Tuesday, November 12, 2019

    Most frequently asked questions in any mechanical engineering interview

    Each and every interview starts with a question from the chairman of the interview. He normally asks the candidate to say a few words about family and educational background. Normally he asks, or start the interview by asking, 'Tell me about yourself'. Candidate should reply to this question by giving just a brief overview of name, educational background, family and family background.

    Mechanical Engineering interview normally contains following the normal layout of questions.

    Friday, January 4, 2019

    Why cooling capacity unit of domestic refrigerator and Air Conditioner (AC) is different?

    Have you ever wondered, Why capacity units of the domestic refrigerator and Air Conditioner (AC) are different though both are refrigeration system? What is the basic difference between them with respect to the cooling capacity?

    The capacity of the domestic refrigerator is normally rated in 'Litre'.

    Litre is actually a unit of volume and it is applicable to the domestic refrigerator while dealing with space/volume to be cooled. Thus, litre capacity actually indicates the volume or space to be cooled by the domestic refrigerator.

    On the other hand, the capacity of Air Conditioner (AC) is given by term 'Ton of refrigeration'.

    What is one Ton refrigeration?

    Sunday, January 29, 2017

    Tips for GPSC Interview for lecturer and assistant professor

    These are the tips which can be helpful to clear the GSPC personal interview for lecturer and assistant professor
    1. Have confidence in your answer while you are asked to speak about yourself. This is normally the very first question asked by the chairman of the interview "Tell me about yourself". Make answer ready in advance. Speak your full name, age, qualification with college and university, current job.
    2. Now when you are asked about your job, give positive aspects of the job.
    3. Why do you want to do a teaching job? Why not a current job? Do not say I am not enjoying the current job but say, "I love teaching and this changes the lives of people. I want to impact the lives of many by teaching jobs. This job is a respectful job"
    4. Always ready with two or three favorite subjects
    5. Prepare the DEMO lecture that will be most probably asked to deliver. 
    6. SAY "NO" IF YOU ARE NOT VERY SURE ABOUT QUESTION'S ANSWER. IF YOU GIVE the WRONG ANSWER THEY WILL TRAP YOU AND ULTIMATELY TIME AND YOUR REPUTATION WILL BE WASTED. Just say 'No' and pass the question. The new question might be familiar to you. This will have the impact of honesty on the interviewer. 
    7. DO NOT ARGUE. DO not hurt them by saying I AM right even though they are wrong. They just make sure about your character. 

    Friday, January 8, 2016

    NPCIL Technical Interview Questions for Mechanical Engineering

    This article gives technical interview questions which were asked during NPCIL interview.

    Sunday, February 22, 2015

    What will be the change in room temperature if door of refrigerator kept open?

    What will be the change in room temperature if the door of the refrigerator kept open? This question is often asked at a mechanical engineering job interview and also in engineering examination.

    Ans: NO, Rather, the temperature of the room will increase over time, not instantly.


    To understand this, let us first understand the working of the domestic refrigerator. It contains four different equipment namely compressor, condenser, capillary tube and evaporator and it also has refrigerant or working fluid/medium which continuously circulating through all these four different equipment to enable heat transfer and thus cooling. The refrigerant while passing through different parts, changes phase and this enable cooling in a domestic refrigerator.

    Saturday, February 22, 2014

    Why compression ratio of petrol engine is kept low compared to diesel engine?

    What is the need of high compression ratio? 

    Today every machine is expected to give higher efficiency. When we talk about the petrol engine and diesel engine whose thermal efficiency is directly related to the 'compression ratio'. That means if we want to achieve higher thermal performance in terms of efficiency, we should provide a high compression ratio for both the engine.

    Friday, February 14, 2014

    Mechanical Engineering interview questions asked at Job interviews of big companies

    This is a compilation of few important interview questions which were asked at big and reputed companies' interviews. 

    What will happen if the diesel engine makes to run with petrol? (Hyundai)

    When petrol is added to a diesel engine, a diesel engine will start but will face difficulty in a smooth run as petrol (which having a low flash point of -43 C) experiences detonation before the actual compression takes place in a diesel engine. Petrol also deteriorates the lubricating system of diesel engines. Hence it is not advisable to run a diesel engine with petrol. Here one counter questions come, 

    What will happen if the petrol engine makes to run with diesel? 

    Wednesday, January 16, 2013

    Important interview questions about mechanical engineering - Thermodynamics (Part II)

    Why Specific heat at constant pressure is greater than Specific heat at constant volume?

    First of all, let us define Specific Heat at Constant Pressure (Cp) and Specific Heat at Constant Volume (Cv):

    Specific Heat at Constant Pressure (Cp): 

    Specific heat at constant pressure is defined as the amount of heat required to raise/increase the temperature of a gas/substance having unit mass by one (degree C) keeping the pressure constant. Unit: J/kgK

    Specific Heat at Constant Volume (Cv): 

    Specific heat at constant volume is defined as the amount of heat required to raise/increase the temperature of a gas/substance having unit mass by one (degree C) keeping the volume constant. Unit: J/kgK

    Now consider the following experimental setup having piston-cylinder arrangement containing gas heated by an external heat source. 

    Wednesday, July 14, 2010

    My Interview Experience In SVNIT as Lecturer

     It is rightly said by Chanakya, "One should learn from mistake or experience of others rather than waiting for it to happen to us". This article is all about my experience of lecturer post at NIT Surat (SVNIT, Surat).

    I have completed my M. Tech from the same institute with Industrial Process Equipment Design (IPED), an L&T sponsored the course. I still remember that day with heavy rainfall. The number of the candidates shortlisted were 28 but out of them, only twelve come to the venue for an interview.

    The Penal consist of five members including HOD - Mechanical Engineering Department, Director of SVNIT (Chairman of Interview) and the other three members was from IITs from the same dept.

    The interview started with a question from the chairman i.e. Director of the institute. He asked, "what are you doing nowadays and what is your future planning?"  Normally the first question of any interview is asked by the chairman of the interview panel (having faculties from IITs) and which normally asked in order to get the overall picture of the candidate including basic qualifications, family background and the response of candidate. As I mentioned about my job as a lecturer at L D College of Engineering, Ahmedabad, one of the panel member asked me, "Which subjects do you teach at First year level in Engineering? I answered the Element of Mechanical Engineering, Engineering Graphics and Thermodynamics. After getting an overall idea about subjects, the asked me the following questions one by one based on my previous questions answer.hat is EME?
    1. Why study EME (Elements of Mechanical Engineering)?
    2. What are the drives? types? what is the belt drive?
    3. How will you select a belt drive and why?
    4. What are the design criteria for the shaft?
    5. Define the 'Factor of safety' in the simple sentence.
    6. What is the meaning of 'Thermodynamic equilibrium'?
    7. Thermal, mechanical and chemical equilibrium
    8. Which properties do each thermodynamics laws define?
    9. What is the meaning of flow work and its importance?
    10. What is the difference between exergy and Anergy?
    11. At which condition Mohr's Circle becomes a point?
    It was a nice experience! I got selected then and worked at NIT-Surat from 2010 to 2013.