NCERT Class 12 Engineering Books

  • CBSE Class 12 Engineering Tie Rod and Pipe Joints

    TIE-ROD AND PIPE JOINTS WHAT HAVE WE LEARNT 1. Turnbuckle/Tie-rod Joint is an adjustable temporary joint, which connects the ends of two rods axially when they are subjected to push/pull (tensile) forces. 2. It consists of:    (a) Body: A hollow cylinder with tapered ends having threaded holes...

  • CBSE Class 12 Engineering Shaft Couplings

    SHAFT COUPLINGS Shafts as we have learnt in the previous chapters, mechanical/machine parts that are commonly used to transmit power from one end of the machine/unit to another. But what, if these ends are distance apart. Moreover the shafts are made of limited lengths for ease of transport arts,...

  • CBSE Class 12 Engineering Rod Joints

    ROD JOINTS All of you have seen a tractor and its trolley/ trailer. The trolley can be easily joined or removed from the tractor as per the need. Have you ever noticed that how this trolley is joined or detached from the tractor? This work is made so simple by a joint between the tractor and the...

  • CBSE Class 12 Engineering Pulleys

      PULLEYS 7.1 INTRODUCTION In every machine or toy, we use power to operate and perform its function. This power is obtained mostly by the motor, run on electricity or battery. To transfer the power from the motor to the operational part of the machine, we use a combination of pulleys and belt (...

  • CBSE Class 12 Engineering Machine Drawing

      MACHINE DRAWING 2.1 INTRODUCTION 2.2 SCREW THREAD In our day to day life, we come across many objects where bolts and nuts are used to join two pieces together. For example we use wooden furnitures like desks, stools, tables etc. in school, showing bolts, nuts and screws. Such machine parts...

CBSE Class 12 Engineering Tie Rod and Pipe Joints

TIE-ROD AND PIPE JOINTS

WHAT HAVE WE LEARNT

 


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CBSE Class 12 Engineering Shaft Couplings

SHAFT COUPLINGS

 


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CBSE Class 12 Engineering Rod Joints

ROD JOINTS

 


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CBSE Class 12 Engineering Pulleys

 

PULLEYS

7.1 INTRODUCTION

 


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CBSE Class 12 Engineering Machine Drawing

 

MACHINE DRAWING

2.1 INTRODUCTION

2.2 SCREW THREAD

 


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CBSE Class 12 Engineering Isometric Projection

 

ISOMETRIC PROJECTION

1.1 INTRODUCTION

 


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CBSE Class 12 Engineering Bearings

 

BEARINGS

 


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Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE asks schools to load Class 12 Internal Assessment Marks

This has a reference to the letter no CBSE/COORD/2021 dated 11.02.2021 regarding conduct of the School-Based Assessment (Internal Assessment/Practical/ Project) of Class-XII and uploading the marks by 11.06.2021. It has been observed that some schools have not been...

CBSE Assessment Framework

The Central Board of Secondary Education (CBSE) today, announced a suggested competency-based assessment framework to strengthen India’s existing school education system for secondary level (classes 6-10) and improve the overall learning outcomes of students across...

Latest CBSE Syllabus for 2021 2022 PDF Download

Latest Syllabus for Class 12 for 2021 2022 Latest Syllabus for Class 11 for 2021 2022 Latest Syllabus for Class 10 for 2021 2022 Latest Syllabus for Class 9 for 2021 2022 CBSE has issued the latest syllabus for the academic year 2021 2022 which is applicable for all...

Class 10 Boards Cancelled Class 12 postponed

Looking to the present situation of the pandemic and school closures, and also taking in account the safety and well-being of the students, it is decided as follows:   1. The Board Exams for Class XIIth to be held from May 4th to June, 14th, 2021 are hereby postponed....

FAQs on Policy for Tabulation of Marks for Class 10 Board Exams

ON POLICY Question.1 How CBSE will declare the result of Class-X? Answer. Results of Class X Board will be declared on the basis of an objective criterion developed by the Board vide Notification no.CBSE/CE/2021 dated 01.05.2021. Question.2. If any candidate is not...

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