Dear Students,

Here is notes for Chapter 4 Heat Transfer and Heat Exchanger

Study 📚✏Well

Click Here Heat Transfer Chapter 4 Notes

Thank You!!! 

Fundamentals of Thermodynamics Notes

Thermal Engineering

K scheme MSBTE Second Year Diploma

Dear Students,
Here is notes for Chapter 1 Fundamentals of Thermodynamics
Study 📚✏Well

 
Fundamentals of Thermodynamics Click Here

Thank You!!! 

 

चॅट जीपीटी - तुमचा जादुई मित्र 

सध्याचे तरुण व तंत्रज्ञान क्षेत्रातील लोकांच्या चर्चेचा विषय असणारी गोष्ट म्हणजे चॅट जीपीटी. चौथ्या औद्योगिक क्रांतीमध्ये प्रत्येक मशीन सोबत इंटरनेट जोडले गेले व मशीन स्मार्ट होत गेली तसेच कृत्रिम बुद्धिमत्ता या गोष्टीला प्रचंड महत्त्व प्राप्त झाले.  माणूस हा एक विचार करणारा बुद्धिमान प्राणी असून त्याच्या शरीरातील बुद्धी जसे काम करते तसेच काम एखाद्या मशीनला करायला सांगणे अथवा मशीन कडून करून घेणे  म्हणजेच कृत्रिम बुद्धिमत्ता. ह्या कृत्रिम बुद्धिमत्तेवर आधारित सध्या मार्केटमध्ये चर्चेत असलेले व दहा लाख लोकांपर्यंत अगदी पाच दिवसात पोहोचलेले हे एक प्रभावी शस्त्र म्हणजे चॅट जीपीटी. 

चॅट जीपीटी हे एक OpenAI या कंपनीने विकसित केलेले मॉडेल आहे. हे एक संवाद साधण्याचे, संभाषण करण्याचे मॉडेल आहे ज्यामध्ये ह्यूमन लैंग्वेज आणि नैसर्गिक भाषा समजून योग्य तो प्रतिसाद दिला जातो. सोप्या भाषेत सांगायचे तर याला तुम्ही विविध प्रश्न विचारू शकता ज्या प्रश्नांची उत्तरे चॅट जीपीटी अगदी एखाद्या माणसानेच दिली आहे अशा पद्धतीने वापरणाऱ्याला देतो. चॅट जीपीटी चा गुगल सर्च इंजिन सारखा वापर करता येतो मात्र चॅट जीपीटी तुम्ही विचारलेल्या प्रश्नांना अनुसरून प्रोसेसिंग करून उत्तर तयार करून देते. त्यामुळे तुम्हाला मिळालेले उत्तर मशीनने नाही तर एखाद्या प्रत्यक्ष माणसाने दिलेले आहे वाटते. इलॉन मस्क व सॅम ऑल्टमान यांनी नॉन प्रॉफिट कृत्रिम बुद्धिमत्ता संस्था सुरु केली होती तिचेच नाव OpenAI  मात्र इलॉन यांनी लवकरच संस्था सोडली त्यानंतर ही प्रॉफिट साठी काम करते. OpenAI च्या वेबसाईट वर जाऊन  रजिस्ट्रेशन करून ही सुविधा सध्या मोफत उपलब्ध आहे.

 चॅट जीपीटी चा वापर व फायदे

१.  एखाद्या विषयावरील नवीन कल्पना तयार करण्यासाठी, नवीन विषय शोधण्यासाठी,  नवीन संकल्पना तयार करण्यासाठी तुम्ही चॅट जीपीटीचा वापर करू शकता. तुम्ही तुमच्या कामाविषयी किंवा व्यवसायासंबंधी विचारलेल्या प्रश्नाला  मशीनने  दिलेले उत्तर हे माणसांनी दिलेले आहे असेच वाटते.

 २. विद्यार्थी व ऑफिस मध्ये काम करणाऱ्या लोकांना लेटर्स, नोटीस किंवा विविध विषयांवरील माहिती सह रिपोर्ट तयार करण्यासाठी तुम्हाला हव्या त्या विविध पद्धतीमध्ये डॉक्युमेंट तयार करून मिळू शकतात. अहो एवढेच काय तर तुम्ही विचारलेल्या एखाद्या विषयावर कविता सुद्धा चॅट जीपीटी तुम्हाला तयार करून देते.

 ३. तुम्ही कुठल्याही प्रोजेक्टवर काम करत असाल तर त्यासंबंधी क्रिएटिव्ह व विविध प्रकारची माहिती तुम्हाला हव्या त्या पद्धतीने मिळवता येऊ शकते.

४.  तुम्ही कोड जनरेट करू शकता.

 ५. ज्या विद्यार्थ्यांना वाचन करुन शिकण्याची आवड असते त्यांना अभ्यासासाठी चॅट जीपीटीचा वापर करून अवघड संकल्पना सोप्या भाषेमध्ये समजावून घेता येऊ शकतात.

 ६. चॅट जीपीटी  मशीन प्रोग्राम आहे. त्याला भावना समजत नाही परंतु काही विशिष्ट पद्धतीने तुम्ही त्याला भावनिक मुद्दे असलेले प्रश्न विचारले तर तो त्या प्रश्नांची विविध पद्धतीने व विविध परिस्थितीनुसार उत्तरे देऊन त्यापैकी तुम्हाला योग्य तो पर्याय निवडावा असा सल्लाही देतो.

 काय करू शकत नाही

चॅट जीपीटी हे लैंग्वेज आधारित चॅट बॉक्स आहे. त्यामुळे जी माहिती त्याच्या मध्ये फीड आहे केवळ त्यावरच तो उत्तर देऊ शकतो. सध्या 2021 पर्यंत ची माहिती त्यामध्ये फीड  केलेली आहे असे सांगितले जाते. चॅट जीपीटी ला कॉमन सेन्स नाही, त्यामध्ये जे फीड केले आहे तेच तुम्हाला तुमच्या प्रश्नानुसार प्रोसेसिंग करून योग्य पद्धतीने सांगण्याचा प्रयत्न करतो. त्याला म्हणी समजत नाही. विशेष भावना समजत नाही. तो खूप क्रिएटिव नाही कारण तो टेक्स्ट आधारित मॉडेल आहे. मात्र माणूस व मशीन यांच्यामधील अंतर कमी करण्याचे काम तो सध्या करतोय. भविष्यात आवाज व चित्र म्हणजे इमेजेस यांना समजून पण उत्तरे देण्याचा प्रयत्न करेल असे वाटते.

नवीन तंत्रज्ञानाला  नकारात्मक बोलले जाणार नाही असे होणार नाही, जसे की चॅट जीपीटी मुळे लोकांची क्रिएटिव थिंकिंग कमी होईल, लोकांच्या नोकऱ्या जातील, त्याला विध्वंसक प्रश्न विचारून त्याचा वाईट उपयोग होईल, असे अनेक प्रश्न आपल्याला ऐकायला मिळतात मात्र अशा पद्धतीची टीका प्रत्येक नवीन टेक्नॉलॉजीवर होतच असते.

खरंच चॅट जीपीटी गुगल ला पर्याय असेल का ? लोकांच्या नोकऱ्या खरंच जातील का ? माणूस व मशीन हा फरक पूर्णता नष्ट होईल का ? मशीन माणसापेक्षा जास्त स्मार्ट होईल का ? अशा अनेक प्रश्नांची उत्तरे आपणच शोधायचा प्रयत्न करायलाच हवा मात्र माणसाने नवीन तंत्रज्ञानाचा आपल्या फायद्यासाठी योग्य वापर करून घ्यावा हे महत्त्वाचे आहे. हे आर्टिकल  अभ्यास व विचार करून लिहीत बसण्यापेक्षा चॅट जीपीटी लाच  Write article on ChatGPT  असा प्रश्न मी विचारायला हवा होता असे सहज वाटून गेले . 

 

 माहिती संकलन व शब्दांकन

 सुरज पांगारकर

 #This article written for the  students to aware them about Industry 4.0 and skills required for the same. 

 

 

 Micro Project List for Engineering Graphics 

Mechanical Engineering Department

K. K. Wagh Polytechnic, Nashik

Dear students,

As you all know you have to work on micro project in I Scheme of MSBTE. These are  some topics  listed  for Engineering Graphics of first semester engineering (All Branches). Select any one topic in a group of 5 students (or suggested by teacher) and work on it.

For (Non Mechanical Group)  Computer Science/Information Technology/Artificial Intelligence and Machine Learning

1. Title- A group will try to prepare simple wooden or cardboard model of any object suggested by teacher. (Students can select their own object) (Do not use thermocol) (For 2 to 3 Group)
    ........Select any one simple object from your book or allotted by teacher and try to prepare 3D model of the same. Paint or color it with different colors showing Front view, Top view and side view. 

2.  Title - Prepare chart showing difference between First angle and Third angle of projection method.  (For 1 Group)
     ......Prepare colorful chart showing clear understanding of difference between First angle and Third angle of projection method. Draw their symbols also. 

3. Title-  Study any one household item and measure it's dimension. Draw isometric view of same. (For 2 to 3 Group)
     ...... Select any one household item like matchbox, computer CPU, pen holder, Mobile or any simple object from home. Measure its dimension and try to develop its isometric view on sheet of paper. 

4. Title-  Study any one Industrial item and measure it's dimension. Draw Orthographic view of same. (For 2 to 3 Group)
     ...... Select any one industrial item like Square Nut, Hexagonal Nut and Plain washer.  Measure its dimension and try to develop its orthographic view on sheet of paper. take help of metrology and measurement teacher to measure dimension of these components. Each batch will select only one object.  

5.  Title-  Study any one Industrial item and measure it's dimension. Draw orthographic view of same. (For 2 group)
     ...... Select any one industrial item like Square Bolt, Hexagonal bolt.  Measure its dimension and try to develop its orthographic view on sheet of paper. Take help of metrology and measurement teacher to measure dimension of these components. Each batch will select only one object.  You can enlarge dimension by 05 or 10 times if needed. 

6. Title- Collect 02 open coil and 02 closed coil helical springs of different sizes from market. Measure parameters and prepare report. (For 1 to 2 group)
       ....... Student has to collect different size helical springs from market and measure its parameters like Free length, No. of Turns, Inner diameter, wire diameter etc. Draw it's free hand sketches. Prepare report. Take help of metrology and measurement teacher to measure dimension of these components.

7. Title- Collect 02 open coil and 02 closed coil spiral springs of different sizes from market. Measure parameters and prepare report. (For 1 to 2 group)
       ....... Student has to collect different size spiral springs from market and measure its parameters like Free length, No. of Turns, Inner diameter, wire diameter etc. Draw it's free hand sketches. Prepare report. Take help of metrology and measurement teacher to measure dimension of these components.

For Mechanical/ Electrical/ Chemical/ Civil branches you can Add following topics along with above.

8. Title- Prepare working model of Involute Curve. (For 1 to 2 group)
     ........ Student has to prepare a simple thick cardboard model of Square, Circle , Triangle and Hexagon. Stick it on large sheet of paper. Wound a thread on it. Attach one end of  thread at one point of object and pencil at other end. Try to develop involute. take help of teacher. 

9. Title - Draw the Cycloid curve of real time event. (For 1  group)
     ......... Student shall select 03 different size bicycle tyre . Measure it's diameter. Draw the cyloid curve of Air valve. (Take suitable scale if needed)

10. Title- Identify the curve traced by the ball in air. (For 1  group)
   ...... Go to college playground. One student will stand at boundary. This student will throw a ball to the wicket keeper who is 30 m away from the thrower. A ball reaches maximum height of 20 m from the ground. remaining students will observe the curve traced by the ball in air. Identify the curve. Draw simple free hand drawing and also make report. 

For any help or idea regarding any micro project refer following link 

Link -

Click for Help or reference

Start to work on your selected topic and report your progress to subject teacher on every Saturday.

Thank You!

Critical Thinking

Do You Think?

As a teacher I found, students are not able to to think. Even brilliant students are also not able to think or even they do not try to think. Many students who did their home work, write assignments and practicals on time,  and score good marks in academics. but when it time to think answer or think and discuss many are not able to do so. Why?

In classrooms we just learn or hear information and content. But now we have to shift towards critical thinking in education. its about how to think? not about what to think?

Critical thinking means giving your judgement or conclusion. it simply means when when you comment on any problem or any issue or any situation, you give your opinion by giving some logical answer and thoughtful answer. you must not give answer or comment blindly or emotionally.

You pass your conclusion on the basis of facts, data available with you, or any research you done on that topic. In  technical way you can define it ability to give conclusion for everything happen by analysing and evaluating data or information in a systematic logical manner with proof or evidence.

When you are going to think critical on any issue or situation, you have to ask questions like How, what, When, Where and why. You have answer these questions not based on emotions but you have to provide some real facts, evidence, or proof. It simply means you have to think unbiased.

In this method thinker improves the quality of his thinking by thinking in a systematic manner. it is not a magic at all and can not be learned in a day. Its a process and actually a life long learning.

If  a students want to face challenges and get success in this changing scenario (Industry 4.0) he/she must learn to think critically. Think beyond.

Why we need critical thinking as a skill for future ?
1. It improves or help for creativity.
2. It improves decision making process.
3. Students will be able to separate facts, opinions and emotions.

How to be a critical thinker?

1. Be an active listener first.

     

We always listen to react not listen to understand. So first listen problem or situation or issue by giving your full attention. 

2. Analyse information

    Analyse whatever you listen about statement by asking questions

    Who told you that issue?

    Does it matter who told you?

    Does the person have authority or power to say that?

   

   What did he/she say?

   The information given to you is his/her personal opinion or real fact?

   Does he/she give any proof after that?

   Where did he/she said?

   It is told in a group of people or in a public or Private.

   When did they  say it?

   Does timing of  when did they say  is important or not. Think on that.

    How they say it

    How they said in written when they said happy or angry.

Be curious. Lets assume that  if you got a news that xyz electronic company got bankrupt and selling their household items for cheap rate.

Who told you that news

Does your friend told you if yes is he working in that company you got that message on social media by your friend

What did he told exactly

Whatever he said to you is real fact or just his opinion does he give you or show you any authentic proof for that like company advertisement in paper or company website or any other authentic source

Where did he said

Does he only told you or told to many people in a group does it matter think on it

When did he say

Does timing of he said is important think on that does this offer going to launch or already launched

How and why he said that

Why he told you that I think on it

If he happy or sad while telling you you can judge why he said to you

By asking such questions to yourself and analysing the situation will leads to new idea and information about situation

So you can validate the news you hurt and take a right decision accordingly

If you search and found new this pic so you will be alert and make others aware about that by giving proof you have

3. Work and practice

Day to day life example from your life and try to practice on that initially you will find difficulty for asking questions and analysing the situation but keep in practice it is not one day learning activity it is a lifelong learning

4. Take other people's perspective also

While judging or analysing information keep in mind to take other people perspective also as your not a person who knows everything every time so analyse information from other people's perspective to

Many people take their decisions on the basis of other people's experience like if any one of your friend got cough when he had ice cream in winter morning he told you to not have ice cream on winter morning and you blindly started to avoid ice cream in winter because of your friends experience here logic is perfectly clear that ice cream in winter and cough but if you try to think critically you have to ask questions why and analyse the situation It may happen that your friend already infected by cough and he get to know after having ice cream It may be chances of early night he mate a person with suffering from cough and your friend get virally infected There are many reasons for his cough and may  not be a direct connection of winter ice cream and cough If  you get his advise blindly you may avoid ice cream in winter but when you think critically a new idea will be generated which help you to take a better decision

Suraj Pangarkar
Lecturer

# This is article is written for students to aware them about critical thinking.

Question Bank for Class Test- 2

Electrical Engineering Department

Basic Mechanical Engineering 2019-20

(Electrical I Scheme MSBTE)

Dear Students,

This is Question Bank for Class Test - 2 for Basic Mechanical Engineering

Chapter - 04 , 05  

02 Marks Questions

 a)  List the applications of refrigeration system

 b)  Describe the functions in refrigeration system i) OLP ii) Thermostat
 c) State the meaning of HVAC. 

d) Identify the component of domestic refrigerator.

e) Enlist types of air compressors. 

f) State the types of Air conditioning system

g) Enlist two effects of frosting.

h)   Define ton of refrigeration.

i)  Describe the functions in refrigeration system   1. Defrost heater
          2.HP/LP cutouts.

04 Marks Questions 

a) Explain working of simple vapour compression system with neat sketch of its layout.

 b) Explain working of centrifugal compressor with sketch.

 c) Describe the working of screw compressor with neat sketch.

 d) State any two methods to reduce power consumption of air compressors            with justification.

e) It is proposed to purchase compressor for furnace of smithy shop of          workshop of polytechnic : (i) State the most suitable type of compressor.           (ii) Justify your answer.

f) It is proposed to use window air-conditioner for air-conditioning of the room        of 4m × 4m × 4m size. State the suggestions for energy saving with justification.

g) Suggest with justification, the type of air conditioner in the following situations : (i) Computer Lab for 60 computer (ii) A room of 5 meter x 5 meter(iii) A city Bus of 45 people capacity 

Prepare answer bank for the said question bank. Get it checked from subject teacher.

                                                                                       
Study well !!                                                    

Question Bank for Class Test- 2

Industrial Engineering and Quality Control 22657

(Mechanical I Scheme MSBTE)

Dear Students,

This is Question Bank for Class Test - 2 for Industrial Engineering and Quality Control

Chapter 4: Quality control & Inspection       Chapter 5: Statistical Quality Control

1.   List objectives of Quality control.

2.   State the meaning of Quality of design and Quality of Conformance

3.   List down advantages and disadvantages of Quality Circle

4.    Define TQM and List down its principles.

5.    Define Cost of quality and value of quality

6.    Explain Quality of Design, Quality of Conformance, Quality of Performance.

7.   State the step by step procedure in quality audit to implement it in                     manufacturing   organisation

8.  Explain the concept of Poka-yoke and state its benefits

9.   Explain the advantages and limitation of ISO 9000.

10.  Define assignable and chance causes.

11.  Classify Quality control charts.

12.  Define 1. Central tendency 2. Dispersion 3. Variance 4.  Standard deviation 

13.   State differnt SQC tools. Explain ANY ONE.

14. Compare Attribute and Variable measurement.

15. State the characteristics of normal distribution.

16. What is six sigma statistical concept? Enlist its benefits. 
17. Define reliability. State the factors to be considered for achieving a reliable design.


Prepare answer bank for the said question bank. Get it checked from subject teacher.

                                                                                       
Study well !!