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Tutorial 2
The document provides an overview of the Linux filesystem, including its hierarchical tree structure with common subdirectories like /bin, /home, and /usr. It discusses useful commands for navigating the filesystem like cd, pwd, and running privileged commands with sudo. The document also compares the Linux and Windows filesystem structures and file types. It introduces package management with apt-get and the power of pipes in Linux.
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1. Dimensional analysis and the concept of similitude allow experiments using scale models to be used to study full-scale systems. Dimensional analysis uses Buckingham pi theorem to determine the minimum number of dimensionless groups needed to describe a phenomenon in terms of the variables involved.
2. For a model to accurately simulate a prototype system, the dimensionless pi groups that describe the phenomenon must be equal between the model and prototype. This establishes the modeling laws or similarity requirements that a model must satisfy.
3. Common dimensionless groups in fluid mechanics include the Reynolds number, Froude number, Strouhal number, and Weber number. These groups arise frequently in analyzing experimental data from fluid mechanics problems.
1 v and timing belt
This document provides information about a machine dynamics course taught by Dr. Muhammad Wasif. It discusses v-belts and their advantages such as transmitting power over long distances and absorbing shock. V-belts can transmit more power than flat belts due to their wedging action but are less efficient for a single belt. The document also covers v-belt limitations, applications, calculations, examples, timing belts, and references.
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Tutorial 2
The document provides an overview of the Linux filesystem, including its hierarchical tree structure with common subdirectories like /bin, /home, and /usr. It discusses useful commands for navigating the filesystem like cd, pwd, and running privileged commands with sudo. The document also compares the Linux and Windows filesystem structures and file types. It introduces package management with apt-get and the power of pipes in Linux.
Free Ebooks Download
1. Dimensional analysis and the concept of similitude allow experiments using scale models to be used to study full-scale systems. Dimensional analysis uses Buckingham pi theorem to determine the minimum number of dimensionless groups needed to describe a phenomenon in terms of the variables involved.
2. For a model to accurately simulate a prototype system, the dimensionless pi groups that describe the phenomenon must be equal between the model and prototype. This establishes the modeling laws or similarity requirements that a model must satisfy.
3. Common dimensionless groups in fluid mechanics include the Reynolds number, Froude number, Strouhal number, and Weber number. These groups arise frequently in analyzing experimental data from fluid mechanics problems.
1 v and timing belt
This document provides information about a machine dynamics course taught by Dr. Muhammad Wasif. It discusses v-belts and their advantages such as transmitting power over long distances and absorbing shock. V-belts can transmit more power than flat belts due to their wedging action but are less efficient for a single belt. The document also covers v-belt limitations, applications, calculations, examples, timing belts, and references.
Friction problems
This document contains multiple physics problems related to forces, friction, and equilibrium. It asks the reader to calculate forces required to initiate movement given masses and friction coefficients, determine ranges of mass where systems are in equilibrium, find maximum thicknesses before slipping occurs, and compute moments and forces for various objects in contact based on specifications provided.
thin walled vessel and thick wall cylinder(strength of the material)
This document provides an overview of mechanical principles related to thin-walled vessels and thick-walled cylinders. It defines thin-walled cylinders and spheres, and explains how to calculate stresses, bursting pressures, and volume changes when pressure is applied. Formulas are provided for circumferential and longitudinal stresses in thin-walled cylinders and spheres, as well as stresses in thick-walled cylinders. The document also discusses calculating diameter and volume changes due to pressure, and solving problems involving compression of fluids into pressure vessels and interference fits between shafts and sleeves. Worked examples applying the principles are included.
Beams
This document provides an introduction to beams and beam mechanics. It discusses different types of beams and supports, how to calculate beam reactions and internal forces like shear force and bending moment, shear force and bending moment diagrams, theories of bending and deflection, and methods for analyzing statically determinate beams including the direct method, moment area method, and Macaulay's method. The key objectives are determining the internal forces in beams, establishing procedures to calculate shear force and bending moment, and analyzing beam deflection.
Simple Stress and Strain
This document provides an overview of simple stress and strain concepts including:
- Stress is defined as the internal resisting force per unit area acting on a material. It can be expressed as the limit of the distributed force over an infinitesimal area as the area approaches zero.
- Normal stress is the intensity of force acting normally to a section, while shear stress is the intensity of force acting tangentially.
- For long, slender beams that experience uniform tensile or compressive stress, the average normal stress can be calculated as the total force divided by the cross-sectional area.
Moment of inertia of non symmetric object
This document discusses moment of inertia calculations for non-symmetric structural shapes. It provides examples of calculating the neutral axis location, transformed moment of inertia about the strong axis, and moment of inertia about the weak axis for "T-shaped" beams. The process involves determining the centroid of the overall shape, then using the parallel axis theorem to calculate the transformed moment of inertia by summing the moments of inertia of individual pieces after accounting for the distance from each piece's centroid to the neutral axis.
Introduction to Strength of Materials
This document outlines an introduction to strength of materials course taught by Dr. Dawood S. Atrushi. The course covers topics such as simple stress and strain, shear force and bending moment diagrams, stresses in beams, and torsion. It discusses how strength of materials relates to other areas of mechanics and engineering. The course aims to help students understand how different forces affect structural components and materials, and analyze stresses and deformations. SI units and concepts like stress, internal forces, and free-body diagrams are also introduced.
Lesson 04, shearing force and bending moment 01
1) The document discusses shear forces and bending moments in beams subjected to different load types. It defines types of beams, supports, loads, and sign conventions for shear forces and bending moments.
2) Examples are provided to calculate shear forces and bending moments at different points along beams experiencing simple loading cases such as a uniformly distributed load on a cantilever beam.
3) Methods for determining the shear force and bending moment in an overhanging beam subjected to a uniform load and point load are demonstrated. Diagrams and free body diagrams are used to solve for the reactions and internal forces.
Chap#6 Beam Deflections solutions
Strength of materials 4th ed. by ferdinand l. singer andrew pytel.
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Moment of inertia
This document contains notes from a prestressed concrete design course taught by Munshi Galib Muktadir. It defines torque, angular acceleration, and moment of inertia. It explains that moment of inertia is a geometric property that reflects how an area's points are distributed around an axis. It also describes area moment of inertia and polar moment of inertia, noting that larger values mean a beam will bend or twist less.
Chapter 1
This document provides an overview of basic surveying concepts and chain surveying principles. It defines surveying as collecting information about a region and representing it in drawings. The purposes of surveying are to obtain necessary information about an area and prepare maps and plans. Surveying is classified as geodetic or plane depending on whether curvature of the earth is considered. Chain surveying principles include dividing the area into triangles, measuring lines and areas directly in the field without angles, and establishing a base line to form triangles. Advantages are low cost and simplicity while disadvantages include lack of accuracy and suitability only for small, level areas.
Stress & force factors/cosmetic dentistry course by Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
Linear Measurements
This document provides an overview of linear measurements and chain surveying techniques. It discusses different types of ranging methods, including direct and reciprocal ranging, to locate intermediate points along a survey line. It also describes instruments used for chain surveying, such as different types of chains, tapes, arrows, ranging rods, and plumb bobs. The key principle of chain surveying is that it involves measuring the sides of triangles within the survey area using a chain or tape, without taking any angular measurements.
Engineering materials
Paints are used to protect surfaces and improve appearance. They consist of a body, vehicle, pigment, thinner, and sometimes dryers or additives. Bodies form the paint film and include materials like zinc oxide or iron oxide. Vehicles allow the body and pigment to spread over surfaces and include oils like linseed oil. Pigments provide color. Thinners increase fluidity. Dryers quicken drying. Additives modify properties. Bitumen includes tar, pitch, and asphalt and is used for waterproofing and roads. Rubber can be natural or synthetic and is used for tires, flooring, and other applications. Good paint has properties like wearability, covering ability, and being environment
10. fm dimensional analysis adam
The document discusses dimensional analysis and modeling. It covers:
1) The seven primary dimensions used in physics - mass, length, time, temperature, current, amount of light, and amount of matter. All other dimensions can be formed from combinations of these.
2) Dimensional homogeneity, which requires that every term in an equation must have the same dimensions.
3) Nondimensionalization, which involves dividing terms by variables and constants to render the equation dimensionless. This produces dimensionless parameters like the Reynolds and Froude numbers.
4) Similarity between models and prototypes in experiments, which requires geometric, kinematic, and dynamic similarity achieved by matching dimensionless groups.
Properties of surfaces-Centre of gravity and Moment of Inertia
The document discusses properties of surfaces, including centre of gravity and moment of inertia. It defines key terms like centre of gravity, centroid, area moment of inertia, radius of gyration, and mass moment of inertia. Methods for calculating these properties are presented for basic shapes like rectangles, triangles, circles, and composite shapes. Theorems like the perpendicular axis theorem and parallel axis theorem are also covered. Examples are provided for determining the moment of inertia of various plane figures and structures.
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thin walled vessel and thick wall cylinder(strength of the material)
thin walled vessel and thick wall cylinder(strength of the material)
Stress & force factors/cosmetic dentistry course by Indian dental academy
Stress & force factors/cosmetic dentistry course by Indian dental academy
Properties of surfaces-Centre of gravity and Moment of Inertia
Properties of surfaces-Centre of gravity and Moment of Inertia
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14. Statistics
This document provides information about statistics concepts including measures of central tendency (mean, median, mode), calculating mean and median for grouped and ungrouped data, frequency distributions, and ogives. It also includes 50 multiple choice questions testing understanding of these statistical concepts. Key topics covered are calculating and comparing means, medians, and modes, determining class boundaries and mid-values, and identifying appropriate measures and formulas for grouped and ungrouped data sets.
13. Probability
This document discusses probability and provides examples of calculating probability. It covers key concepts like experimental probability, theoretical probability, mutually exclusive events, complementary events, exhaustive events, and sure events. It then provides 30 multiple choice questions testing understanding of probability concepts like finding the probability of drawing a particular ball or card from a set.
12.applications of trigonometry
This document discusses applications of trigonometry, including determining the height or length of objects using angles of elevation/depression and trigonometric ratios. It provides examples like calculating the height of a pole given the observation angle and distance, or finding the width of a river based on the boat's angle and distance traveled. The document ends with 20 multiple choice questions testing these trigonometric application concepts.
10.mensuration
The document provides information about mensuration and calculating volumes and surface areas of different geometric solids like cubes, spheres, cylinders, cones, and prisms. It includes definitions of these shapes, formulas to calculate their measurements, sample problems, and a practice test with multiple choice questions related to volumes and surface areas of combinations of solids.
9.tangents and secants to a circle
1. The document discusses various properties of tangents and secants to circles, including: a secant intersects a circle in two points, a tangent intersects in one point, and a tangent is perpendicular to the radius at the point of contact.
2. It provides examples of lengths of tangents from internal and external points and how tangents from an external point are equal in length.
3. The document also covers areas and lengths of sectors of circles based on the central angle subtended, as well as properties of common tangents between two circles.
8.similar triangles
This document provides information about similar triangles over 5 pages. It begins by defining similar figures and triangles, and explaining the properties of similar triangles including equal corresponding angles and proportional corresponding sides. It then lists various criteria and properties to determine if triangles are similar, such as AAA, SSS, and angle-side criteria. The document concludes with 50 multiple choice questions related to similar triangles.
7.co ordinate geometry
This document provides information about coordinate geometry including:
1. The definitions of the abscissa and ordinate of a point and the coordinates of points on the x-axis and y-axis.
2. Equations for finding the distance between points, the distance of a point from the origin, and the distance between points on parallel lines.
3. Concepts like the midpoint of a line segment, dividing a line segment internally in a given ratio, and the centroid and trisectional point of a triangle.
4. The area formula for triangles and Heron's formula.
5. Multiple choice questions testing these coordinate geometry concepts.
6.progressions
1. The document discusses arithmetic progressions (AP) and geometric progressions (GP). An AP is a sequence where each term after the first is calculated by adding a constant to the previous term. A GP is a sequence where each term is calculated by multiplying the previous term by a constant.
2. Formulas are provided for calculating terms of APs and GPS, including formulas for the nth term, the sum of the first n terms, and identifying whether a set of numbers are in AP or GP.
3. The document concludes with 30 multiple choice questions testing understanding of APs and GPS.
5.quadratic equations
This document discusses quadratic equations. It defines quadratic polynomials and quadratic equations. It explains that a quadratic equation can have two distinct real roots, two equal real roots, or no real roots depending on the value of the discriminant. The document provides examples of solving quadratic equations using methods like factoring, completing the square, and the quadratic formula. It includes 40 multiple choice questions related to properties and solutions of quadratic equations.
4.pair of linear equations in two variables
This document discusses pairs of linear equations in two variables. It defines them algebraically and geometrically as two straight lines that can intersect, be parallel, or coincide. Pairs can be solved graphically by drawing the lines or algebraically using substitution, elimination, or cross multiplication methods. The document provides examples of pairs of linear equations and their solutions. It also includes 40 multiple choice questions related to pairs of linear equations and their properties.
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2.sets
1. A set is a collection of well-defined objects called elements. Sets can be represented in roster form by listing elements within curly brackets or in set-builder form describing a common property of elements.
2. Sets can be finite, containing a countable number of elements, or infinite with an uncountable number. The number of elements in a set is its cardinal number.
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1.real numbers
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Chapter 12 physics
This document provides an overview of electromagnetism and key concepts in physics such as magnetic fields, magnetic flux density, magnetic forces, electromagnetic induction, and Faraday's and Lenz's laws. It discusses how current-carrying wires and coils produce magnetic fields and how changing magnetic fields can induce electromotive force (EMF) in conductors. Examples of applications of electromagnetic induction include electric motors, generators, tape recorders, ATMs, and induction stoves. Multiple choice questions related to these topics are also provided.
Chapter 11 physics
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Chapter 7 physics
The document provides information about the human eye and vision. It discusses the basic anatomy of the eye, including the cornea, iris, lens, retina, and optic nerve. It describes how the lens focuses light onto the retina to form an image and allows for accommodation. Common vision defects like myopia, hyperopia, and presbyopia are also summarized along with how they are corrected using lenses. The document additionally covers topics of dispersion, scattering of light, and the Raman effect.
refraction of light at curved surfaces
This document provides information about refraction of light at curved surfaces and lenses. It defines key terms like radius of curvature, principal axis, focal length. It describes the properties and image formation characteristics of convex and concave lenses. The lens formula and lens maker's formula are provided. Multiple choice questions at the end test the understanding of concepts like image formation by lenses and mirrors, properties of convex, concave and plane mirrors, and characteristics of lenses.
Chapter 5 physics
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Engineering mechanics i 1999-2000 page ii
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