Questions and Answers
What does ABET stand for?
What is the Actual Mechanical Advantage?
The ratio of the magnitude of the resistance and effort forces applied to a system.
What is a belt used for?
To transmit motion and power within a pulley system.
What defines a career?
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What is a chain in mechanical systems?
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What is meant by Effort Force?
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How is efficiency defined?
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What is friction?
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What is a fulcrum?
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What is a gear?
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What is the Ideal Mechanical Advantage?
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What is an idler gear?
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What is a lever?
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What defines a mechanism?
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What is a moment?
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What does pitch refer to in mechanics?
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What is a pulley?
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What is Resistance Force?
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What is a screw?
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What are simple machines?
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What is a sprocket?
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What is static equilibrium?
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What is technical communication?
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What is torque?
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What is a wedge?
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What is a wheel and axle?
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What is an inclined plane?
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What is alternative energy?
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What is an ampere?
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What defines current in electrical terms?
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What is electrical energy?
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What is electricity?
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What is electromagnetic induction?
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How is efficiency in dynamic systems defined?
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What is energy?
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What does energy conservation refer to?
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What is the role of the Environmental Protection Agency?
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What are fossil fuels?
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What is a generator?
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What defines geothermal energy?
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What is gravitational energy?
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What is induction in electric terms?
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What is inexhaustible energy?
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What is kinetic energy?
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What is the unit of electric resistance?
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What does Ohm's Law state?
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What is a parallel circuit?
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What is potential energy?
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What is resistance in electrical systems?
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What is work in mechanical terms?
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What is a turbine?
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What does power measure?
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What is a rotor?
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What is a series circuit?
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What is a volt?
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What is active solar energy collection?
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What is conduction?
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What is electromagnetic energy?
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What is electrolysis?
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What does entropy measure?
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What is the First Law of Thermodynamics?
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What is a fuel cell stack?
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What is heat?
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What is Kelvin?
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What is a line of best fit?
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What is passive solar energy collection?
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What does radiation refer to in energy transfer?
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What is resistance?
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What does R-value measure?
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What is the Second Law of Thermodynamics?
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What is temperature?
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What is a thermodynamic system?
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What is U-value?
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What is the Zeroth Law of Thermodynamics?
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What does accuracy measure?
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What is an assembly?
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Study Notes
Engineering Terminology Highlights
- ABET: Recognized accreditor for college programs in applied science, computing, engineering, and technology.
- Actual Mechanical Advantage: Ratio of resistance to effort forces in a system.
- Belt: Continuous band transmitting motion and power in pulley systems.
- Career: A permanent professional calling requiring specific training.
- Chain: Series of metal links transmitting power in sprocket systems.
Mechanics and Forces
- Effort Force: External force applied to an object.
- Efficiency: Ratio of useful energy output to total energy input; indicates work conversion percentage.
- Friction: Resistance encountered when one object moves over another.
- Fulcrum: Fixed point around which a lever rotates.
- Gear: Circular object with teeth for transferring rotary motion and torque.
Mechanical Advantage Concepts
- Ideal Mechanical Advantage: Ratio of distances traveled by effort and resistance forces.
- Idler Gear: Gear positioned to change rotational direction between driver and driven gears.
- Lever: Rigid bar that exerts pressure or supports weight, rotating around a fulcrum.
- Mechanism: Structure or relationship of parts in a machine.
Energy and its Forms
- Potential Energy: Energy possessed by an object due to its position or arrangement.
- Kinetic Energy: Energy of a body in motion.
- Gravitational Energy: Potential energy associated with an object's position relative to gravity.
- Fossil Fuel: Natural fuels formed from ancient living organisms, such as coal and gas.
- Renewable Energy: Energy sources that can be replenished, such as wind and solar.
Electrical Concepts
- Ampere: Basic unit of electric current in the SI system.
- Ohm: Unit of electric resistance; symbolized as Ω.
- Voltage: Potential difference in an electric circuit, measured in volts.
- Parallel Circuit: Electrical circuit where current divides into multiple paths.
- Series Circuit: Circuit where all parts are connected end to end.
Thermodynamics and Energy Transfer
- First Law of Thermodynamics: Energy in a system remains constant; change in thermal energy equals work done.
- Second Law of Thermodynamics: Natural processes proceed in preferred directions, indicating entropy increases.
- Conduction: Heat transfer through matter via molecular activity.
- Convection: Heat transfer through fluid movement.
- Radiation: Energy transfer through electromagnetic waves.
Design and Development Principles
- Design Process: Systematic strategy for developing solutions, incorporating criteria and constraints.
- Design Brief: Written plan identifying problems, criteria, and constraints for solutions.
- Prototype: Early model used to test design concepts.
- Consensus: General agreement among a group on design or project decisions.
- Brainstorming: Collaborative technique to generate ideas or solutions spontaneously.
Environmental Considerations
- Energy Conservation: Transformation of energy from one form to another; focuses on efficiency.
- Environmental Protection Agency: Agency ensuring enforcement of environmental laws.
- Biomass: Plant and animal materials utilized as fuel sources.
- Geothermal Energy: Heat sourced from Earth’s core; environmentally sustainable.
- Alternative Energy: Energy derived from non-depleting, environmentally friendly resources.
Product Lifecycle Management
- Product Development Lifecycle: Stages a product goes through from concept to market withdrawal.
- Design Modification: Changes made to improve production or effectiveness of a design.
- Component: Individual part that fits into a larger assembly or mechanism.
Unit Measurements and Conversions
- R-value: Measure of resistance to heat flow; important in thermal insulation.
- U-value: Indicates the rate of heat transfer through a building element.
- Zeroth Law of Thermodynamics: Establishes thermal equilibrium among multiple bodies.
Understanding these key concepts in engineering provides foundational knowledge crucial for effective application and innovation in the field.
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