NCERT Class 8 Vocational Education Kaushal Bodh(Sanskrit): Chapter 4 — परियोजना ४: जल-प्रबन्धनस्य जलपरीक्षणम्
This chapter, 'Grihasya Swachalan' (Home Automation) from NCERT's Kaushal Bodh for Class 8 Vocational Education, introduces the concept of modern technology enabling remote control of home appliances. Its aim is to create a convenient, secure, and energy-efficient life. The chapter details project tasks like selecting electrical components, designing simple programs, and building automated systems. It explains automation as the use of technology in daily appliances, reducing manual intervention. Examples include automated lights in classrooms that switch off when no motion is detected, saving electricity, and an automated garden irrigation system that waters plants based on soil moisture sensors. The text also draws parallels between modern automation and natural processes like the human body's involuntary functions and natural cycles like sunrise/sunset and the water cycle, highlighting that nature itself is a form of automation. This chapter helps students understand the practical applications of technology in making life easier and more sustainable.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 8 |
| Subject | Vocational Education |
| Book | Kaushal Bodh(Sanskrit) |
| Chapter | Chapter 4 — परियोजना ४ : जल-प्रबन्धनस्य जलपरीक्षणम् |
| Language | Sanskrit |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 361 |
Learning outcomes
- Understand the concept of home automation and its benefits.
- Identify components and basic principles of automated systems.
- Recognize examples of automation in daily life and nature.
- Appreciate the role of technology in creating efficient and convenient living.
- Relate natural automation processes to modern technological systems.
Vocabulary
| Word | Meaning |
|---|---|
| स्वचालनम्् | Automation |
| आधुनि�कतन्त्रज्ञानस्य | Of modern technology |
| उपकरणानि� | Appliances/devices |
| नियन्त्रयि�तुं� | To control |
| ऊर्जाǿ-क्षमं | Energy-efficient |
| संवेदकानां� | Sensors |
| प्रोग्राम्् | Program |
| स्वचालितप्रणालीं | Automated system |
| वि�द्युत््-क्षयः | Electricity wastage |
| गतिIसंवेदक | Motion sensor |
| आर्द्ररता-संवेदकः | Moisture sensor |
| हृदयं | Heart |
The complete chapter text is read in the official NCERT PDF viewer below (streamed from ncert.nic.in). This page provides NCERT Help study material — summary, vocabulary, practice questions, and FAQs — not a full reproduction of the textbook.
Read chapter online
This PDF is loaded from the official NCERT website (ncert.nic.in). Use the page buttons below to read — download is disabled on NCERT Help.
Read page by page below. PDF is streamed from the official NCERT website — no download button on this page.
Practice questions
- गृहस्य स्वचालनम्् इति किम्? Answer: गृहस्य स्वचालनम्् इति आधुनि�कतन्त्रज्ञानस्य सः भागः अस्ति�ि, येन वयं स्वगृहस्य उपकरणानि� दूरादेव नि�यन्त्रयि�तुं� शक्नुमः।
- स्वचालनस्य एकं उदाहरणं ददातु। Answer: कक्षायां गतिIसंवेदकयुक्ता स्वयं चालि�त-वि�द्युत््-व्यवस्था यदा गतिः न दृश्यते तदा दीपाः स्वयमेव नि�ष्क्रिĂĪयाः भवन्ति।
- स्वचालित-उद्यान-सेचन-व्यवस्था कथं कार्यं करोति? Answer: यदा मृत्तिƻका शुष्का भवति तदा आर्द्ररता-संवेदकः जलनलि�कायन्त्रं प्रति सङ्केतं प्रेषयति, येन पम्प्् चलति तथा च पादपेभ्यः जलं ददाति।
- प्रकृतिः स्वचालनस्य कः उदाहरणं अस्ति? Answer: मानवशरीरस्य क्रियाः (हृदयस्पन्दनं, श्वासोच्छ्वासं) तथा जलचक्रं प्रकृतिः स्वचालनस्य उदाहरणानि सन्ति।
Frequently asked questions
What is home automation (गृहस्य स्वचालनम््)?
Home automation is a part of modern technology that allows us to control our home appliances remotely, aiming for a convenient, secure, and energy-efficient life.
What is the purpose of home automation?
The purpose of home automation is to create a convenient, secure, and energy-efficient lifestyle by automating home appliances and systems.
Can you give an example of automation in a classroom?
Yes, an automated lighting system with motion sensors in a classroom can automatically switch off lights when no motion is detected, saving electricity.
How does an automated garden irrigation system work?
It uses a moisture sensor in the soil. When the soil becomes too dry, the sensor signals the irrigation system to water the plants until sufficient moisture is reached.
Is automation a new concept?
No, automation is not a new concept. Nature itself has always been automated, and humans have been creating automated machines for a long time.
What are some examples of automation in nature?
Examples include the involuntary functions of the human body (like heart beating, breathing) and natural cycles like sunrise/sunset and the water cycle.
Related resources
Important topics
Topics covered
NCERT Class 8 Vocational Education — Kaushal Bodh(Sanskrit) — Chapter 4 — परियोजना ४ : जल-प्रबन्धनस्य जलपरीक्षणम्. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.