Thermodynamics and Heat Transfer Unit Quiz

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Questions and Answers

What are the two main types of thermodynamic equilibrium?

Thermal and Mechanical Equilibrium

The concept of entropy is defined in ______ I.

Unit

Which of the following are examples of heat transfer modes?

  • Evaporation
  • Convection (correct)
  • Radiation (correct)
  • Conduction (correct)

What are the two main types of condensers used in steam turbines?

<p>Jet and Surface Condenser</p> Signup and view all the answers

What are the two main types of Internal Combustion Engines?

<p>Diesel Cycle (B), Otto Cycle (C)</p> Signup and view all the answers

What are the two main types of metal working processes?

<p>Hot and Cold Working</p> Signup and view all the answers

Which of the following are common metal forming processes?

<p>Forging (B), Extrusion (C), Rolling (D)</p> Signup and view all the answers

What is the main mechanism used in Lathe Machines to improve cutting speed and accuracy?

<p>Quick Return Motion Mechanism</p> Signup and view all the answers

Which of these are considered Machine Tools?

<p>Drilling Machine (B), Shaping Machine (C), Lathe Machine (D)</p> Signup and view all the answers

Flashcards

Thermodynamic System

A region of space and all the matter within it, studied in thermodynamics.

Thermodynamic Equilibrium

A state where a system's properties don't change.

Zeroth Law

If two objects are each in thermal equilibrium with a third, they are in thermal equilibrium with each other.

First Law

Energy can neither be created nor destroyed; only transformed.

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Second Law

The entropy of an isolated system can only increase.

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Heat Engine

Device converting heat into mechanical work.

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Heat Pump

Device moving heat from a cold region to a warm region.

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Carnot Efficiency

Maximum possible efficiency of a heat engine.

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Rankine cycle

Thermodynamic cycle generating power from steam.

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Heat Transfer (Conduction)

Energy transfer via molecular interaction.

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Overall Heat Transfer Co-efficient

Combined effect of multiple modes.

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Steam Turbines

Machines using steam's pressure to spin a shaft.

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Impulse Turbine

High-speed turbine that converts steam force.

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Reaction Turbine

Turbine converting steam's pressure to power.

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Internal Combustion Engine (ICE)

Engine producing power by burning fuel within it.

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Otto Cycle

A four-stroke ICE cycle example.

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Diesel Cycle

Fuel igniting by compression.

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Engineering Materials

Materials used in engineering.

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Metal Casting

Manufacturing process shaping metal by casting.

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Lathe Machine

Machine turning material to required shape.

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Milling Machine

Machine removing material with rotating cutters.

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Welding

Joining metals by melting and fusing.

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Machining Processes

Methods for shaping metal parts.

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Study Notes

Unit I: Introduction to Thermodynamics

  • Thermodynamics role in engineering and science
  • Types of systems, thermodynamic equilibrium, properties, state, process, and cycle
  • Elementary introduction to zeroth, first, and second laws of thermodynamics
  • Heat and work interactions for various non-flow and flow processes
  • Concept of heat engine, heat pump, and refrigerator
  • Efficiency/COP
  • Kelvin-Planck and Clausius statements
  • Carnot cycle, Carnot efficiency
  • T-S and P-V diagrams
  • Concept of entropy (definition only)

Unit II: Heat Transfer & Thermal Power Plant

  • Modes of heat transfer: conduction
  • Composite walls and cylinders
  • Combined conduction and convection
  • Overall heat transfer coefficient
  • Simple numerical problems
  • Thermal power plant layout
  • Rankine cycle
  • Fire tube and water tube boilers
  • Babcock & Wilcox, Cochran boilers

Unit III: Steam Turbines

  • Impulse and reaction turbines
  • Condensers: jet & surface condensers
  • Cooling towers
  • Internal combustion engines and refrigeration
  • Otto, Diesel, and Dual cycles
  • P-V and T-S diagrams
  • IC engines: 2-stroke and 4-stroke
  • S.I. and C.I. engines

Unit IV: Materials and Manufacturing Processes

  • Engineering materials, classification, and properties
  • Metal casting, moulding, patterns
  • Metal working: hot working and cold working
  • Metal forming: extrusion, forging, rolling, drawing
  • Gas welding, arc welding, soldering, and brazing

Unit V: Machine Tools and Machining Processes

  • Machine tools: lathe machine and types
  • Lathe operations
  • Milling machine and types
  • Milling operations
  • Shaper and planer machines: differences
  • Quick-return motion mechanism
  • Drilling machine: operations
  • Grinding machine: operations

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