Introduction to Engineering
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Questions and Answers

What is considered the most important aspect of an engineer's role?

  • Safety of the public (correct)
  • High efficiency
  • Innovative design
  • Low operating costs
  • Which of the following is NOT one of the traditional engineering majors listed?

  • Civil Engineering
  • Environmental Engineering
  • Chemical Engineering
  • Nuclear Engineering (correct)
  • Which engineering discipline primarily focuses on infrastructure and buildings?

  • Environmental Engineering
  • Architectural Engineering (correct)
  • Chemical Engineering
  • Mechanical Engineering
  • What does low operating and maintenance costs imply for engineering solutions?

    <p>Reduced long-term expenses (B)</p> Signup and view all the answers

    Which engineering field would most likely deal with pollution and natural resources?

    <p>Environmental Engineering (D)</p> Signup and view all the answers

    What is the primary role of an engineer?

    <p>To use scientific knowledge to solve practical problems (B)</p> Signup and view all the answers

    Which of the following roles is NOT typically associated with an engineer?

    <p>Administrative assistant (D)</p> Signup and view all the answers

    In the engineering hierarchy described, who is at the top of the pyramid?

    <p>Engineers (A)</p> Signup and view all the answers

    Which characteristic is essential for an engineer apart from their technical knowledge?

    <p>Leadership within engineering teams (D)</p> Signup and view all the answers

    Which of the following best describes an engineering technologist in the engineering hierarchy?

    <p>They play a supporting role to engineers. (D)</p> Signup and view all the answers

    What is the primary focus of products designed to make life easier?

    <p>Improving convenience and efficiency in daily tasks (B)</p> Signup and view all the answers

    How do inventions contribute to the welfare of society?

    <p>By providing useful tools and resources for the community (D)</p> Signup and view all the answers

    Which of the following best represents a consequence of innovations designed to enhance convenience?

    <p>Enhanced connectivity and improved daily life (B)</p> Signup and view all the answers

    What is a potential drawback of focusing solely on making life easier through inventions?

    <p>Dependence on technology for simple tasks (D)</p> Signup and view all the answers

    In what way can products that aim to enhance convenience affect social interactions?

    <p>They can discourage face-to-face communication. (B)</p> Signup and view all the answers

    During which time period was gunpowder perfected?

    <p>A.D. 1--1000 (B)</p> Signup and view all the answers

    What industries continued to grow between 1000 and 1400?

    <p>Silk and glass (A)</p> Signup and view all the answers

    Which of the following developments occurred first in the provided timeline?

    <p>The perfection of gunpowder (D)</p> Signup and view all the answers

    What material is commonly used for firefighters' clothing?

    <p>Rayon (D)</p> Signup and view all the answers

    What is the significance of the period A.D. 1--1000 in terms of technology?

    <p>Gunpowder was invented. (D)</p> Signup and view all the answers

    Which of the following items can be made from sisal?

    <p>Rope and twine (D)</p> Signup and view all the answers

    What is rayon primarily derived from?

    <p>Vegetable matter (A)</p> Signup and view all the answers

    Which statement accurately reflects the developments between A.D. 1--1400?

    <p>Silk and glass industries thrived during the latter period. (C)</p> Signup and view all the answers

    Which of these is NOT typically made from rayon?

    <p>Rope (D)</p> Signup and view all the answers

    What property makes sisal a favorable material for certain applications?

    <p>It is easy to grow and hardy (D)</p> Signup and view all the answers

    Which prefix represents a factor of 10⁶?

    <p>mega (A)</p> Signup and view all the answers

    What is the symbol for the prefix that represents one billion?

    <p>G (D)</p> Signup and view all the answers

    Which derived unit is expressed in terms of meters and kilograms per second squared?

    <p>newton meter (C)</p> Signup and view all the answers

    What is the derived unit for dynamic viscosity?

    <p>pascal second (A)</p> Signup and view all the answers

    Which of the following represents the unit for heat flux density?

    <p>W/m² (B)</p> Signup and view all the answers

    What is the name of the derived unit for specific heat capacity?

    <p>joule per kilogram kelvin (A)</p> Signup and view all the answers

    Which prefix corresponds to a factor of 10⁻³?

    <p>milli (A)</p> Signup and view all the answers

    What is the correct derived unit for entropy?

    <p>J/kg (A)</p> Signup and view all the answers

    Which derived unit measures electric field strength?

    <p>volt per meter (C)</p> Signup and view all the answers

    What unit is used to express radiant intensity?

    <p>W/(m²·sr) (A)</p> Signup and view all the answers

    In SI units, how is the moment of force expressed?

    <p>N·m (A)</p> Signup and view all the answers

    Which prefix denotes one quintillion in the SI system?

    <p>exa (B)</p> Signup and view all the answers

    Which of the following factors represents yocto?

    <p>10⁻²⁴ (B)</p> Signup and view all the answers

    Which derived unit is used for measuring catalytic activity concentration?

    <p>kat/m³ (A)</p> Signup and view all the answers

    Flashcards

    Engineer Definition

    A person who uses scientific knowledge to solve practical problems.

    Engineer Roles

    Engineers are designers, decision-makers, innovators, and team leaders.

    Engineer Hierarchy

    Engineer is superior to engineering technologists.

    Engineer vs. Engineering Tech

    Engineers are more qualified than engineering technologists.

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    Engineer Skills

    Engineers use problem-solving, decision-making, and innovation skills.

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    Engineering Technicians

    Professionals who assist engineers in design, development, and testing of engineering projects.

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    Engineering Majors

    Different areas of study in engineering.

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    Electrical Engineering

    Study of electricity, electronics, and electromagnetism.

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    Mechanical Engineering

    Deals with machines, mechanics, and their applications.

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    Importance of Engineers

    Engineers improve public safety and reduce operating/maintenance costs.

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    New Inventions

    New creations that aim to simplify common tasks or solve everyday problems.

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    Products for Ease

    Items designed to make daily life more convenient and efficient.

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    Community Benefit

    The positive impact that something has on a group of people.

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    Welfare of Society

    The well-being and prosperity of people in a community.

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    Useful Things

    Items that provide practical value and solve real-world problems.

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    Gunpowder Perfected

    The invention and refinement of gunpowder occurred during the period from A.D. 1 to 1000.

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    Silk and Glass Industries

    The silk and glass industries continued to experience growth between A.D. 1000 and 1400.

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    Rayon

    A type of fiber made from wood pulp, cotton linters, or other plant materials.

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    Regenerated Cellulosic Fibers

    Fibers created by chemically processing natural cellulose, primarily from plants, into a new form.

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    What are Rayon's raw materials?

    Rayon is derived from wood pulp, cotton linters, or other vegetable matter.

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    用途

    Rayon is used in various types of clothing, industrial textiles, and household items.

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    Key property of Rayon?

    Rayon exhibits good moisture absorption and is generally comfortable to wear.

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    SI Unit Prefixes

    Symbols representing powers of 10 used to scale units, making numbers easier to write and read.

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    Yotta (Y)

    The largest SI prefix, representing 10²⁴, a number with 25 digits.

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    Zepto (z)

    Represents 10⁻²¹, incredibly small, a decimal with 21 zeros after the decimal point.

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    Derived SI Units

    Units formed by combining base SI units, expressing various physical quantities.

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    Dynamic Viscosity

    A measure of a fluid's resistance to flow, expressed in Pascals per second.

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    Moment of Force

    The turning effect of a force, measured in Newton meters.

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    Surface Tension

    The force per unit length acting along the surface of a liquid, measured in Newtons per meter.

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    Angular Velocity

    The rate of change of an object's angle, measured in radians per second.

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    Fibers

    Tiny lattice parts in the tissues of plants, animals, or any substance.

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    Heat Flux Density

    The amount of heat energy flowing per unit area per unit time, measured in Watts per square meter.

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    Heat Capacity

    The amount of heat energy required to raise the temperature of a substance by 1 degree Kelvin, measured in Joules per Kelvin.

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    Specific Heat Capacity

    The amount of heat energy required to raise the temperature of 1 kg of a substance by 1 degree Kelvin, measured in Joules per kilogram Kelvin.

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    Electric Field Strength

    The force experienced by a unit charge placed in an electric field, measured in Volts per meter.

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    Electric Charge Density

    The amount of electric charge per unit volume, measured in Coulombs per cubic meter.

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    Permeability

    A measure of a material's ability to support the formation of a magnetic field, measured in Henrys per meter.

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    Study Notes

    Lecture 1

    • An engineer is a person who uses scientific knowledge to solve practical problems
    • Key roles of an engineer include: designer, decision maker, innovator, and leader of an engineering team
    • Different levels of engineers exist in a hierarchy: engineer, engineering technologists, engineering technicians, and craftsmen

    Engineering Majors

    • Traditional engineering majors include: Electrical, Mechanical, Civil Engineering, Architectural, Chemical, Construction, Environmental, and Computer Engineering.

    Value of Engineering

    • Safety of the public is a priority
    • Low operating and maintenance costs are desirable
    • Products that make life easier are valuable
    • Welfare of society is important
    • Communication to link people is essential
    • Infrastructure development is crucial

    Foundations of Engineering

    • Aerospace, Electrical, Chemical, Petroleum, Civil, Mechanical, Ocean, Environmental, Agricultural

    Pioneers in Engineering

    • Imhotep, William Gilbert, Thomas Newcomen, George Cayley
    • Alan Emtaje

    Lecture 2

    • Time periods and developments (1200 BC - 1825)

    Lecture 3

    • There are seven base units of SI (International System of Units)
    • SI base units include: Length (meter), Mass (kilogram), Time (second), Electric current (ampere), Thermodynamic temperature (kelvin), Amount of substance (mole), Luminous intensity (candela)
    • Cubit, Hand, Foot measurements and conversions

    Lecture 4

    • Fibers are tiny parts of plant or animal tissues
    • Natural fibers are from natural sources (cotton, silk, wool, linen, jute)
    • Manufactured fibers are artificial or man-made (rayon, acetate, bamboo)
    • Properties and uses of various fibers

    Lecture 5

    • Textile craft is one of the oldest technologies, invented by the ancient Egyptians
    • Types of fabrics include woven, knitted, and non-woven
    • History of weaving, including wooden hand looms

    Lecture 6

    • Different types of weaving machines: projectile loom, rapier loom, air jet loom
    • Circular weaving machine, full garment flat knitting machine
    • Warp-knitting, non-woven fabrics, and their properties and main applications

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    Description

    Explore the fundamental concepts of engineering through this quiz. Learn about the roles of engineers, various engineering majors, the value they bring to society, and the key pioneers who have influenced the field. Test your knowledge on the foundational aspects of engineering and its impact on everyday life.

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