राजस्थान मैं पॉलिटेक्निक करने वाले अभ्यर्थियों/छात्रों के लिए हिंदी तथा अंग्रेजी दोनों माध्यम में प्रथम, द्वितीय एवं तृतीय वर्ष की सभी विषयों के हल यहाँ उपलब्ध कराये जा रहे हैं –
शुरुआत में द्वितीय वर्ष सिविल तथा यांत्रिकी के लिए पदार्थ की सामर्थ्य (Strength of Material ) और द्रव यांत्रिकी (Fluid Mechanics ) की समस्यांए अध्याय दर अध्याय समझाई व पढाई जा रही है |
पदार्थ की सामर्थ्य (Strength of Material )
- Mechanical Properties
- Concept of stress and strain
- Hook’s law
- Working Stress and factor of safety
- Stress and strain Calculation
- Temperature Stresses
- Shear stresses
- Poisson’s ratio and volumetric strain
- Relationship between elastic constants
- Introduction
- Stress components on an inclined plane
- Mohr’s circle
- Principal stresses and planes
- Introduction
- Strain energy from stress-strain diagram
- Proof resilience
- Types of loading
- Basic concept
- Types of beam
- Types of load
- Shear force and bending moment
- Bending moment and shear force diagram
- Concept of moment of inertia
- Radius of gyration
- Moment of Inertia of various sections
- Concept of bending stress
- Theory of simple bending
- Design Criteria and section modulus
Shear stress distribution diagram of various sections
- Concept of deflection of a beam
- Deflection calculation
- Concept of column and struts
- Modes of failure
- Types of column
- Buckling loads
- Slenderness ratio
- Euler’s formula
- Rankine’s formula
- Concept of torsion
- Derivation and use torsion equation
- Relation between power and torque
- Combined stress due to bending and torsion
- Introduction and classification of springs
- Flat carriage spring
- Closely coiled helical spring
- Use of cylinders
- Stresses due to internal pressure
- Design of thin cylinders
- Effect of eccentricity
- Stress due to eccentric load
- Middle third rule
- Quarter rule
द्रव यांत्रिकी (Fluid Mechanics )
- Introduction
- Fluid mechanics
- Fluid properties
- Definitions and its units
- Pascal’s law
- Pressure
- Law of hydrostatic pressure
- Brahma’s pressure
- Pressure measurement
- Mechanical gauge
- Total pressure
- Centre of pressure
- Total pressure and center of pressure
- Law of hydrostatic pressure
- Brahma’s pressure
- Pressure measurement
- Mechanical gauge
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