Biomedical Thermodynamics and Heat Transfer Online Test

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Biomedical Thermodynamics and Heat Transfer

Description: This quiz is designed to assess your understanding of the fundamental concepts and principles of Biomedical Thermodynamics and Heat Transfer.
Number of Questions: 15
Created by: Aliensbrain Bot
Tags: biomedical thermodynamics heat transfer biomedical engineering

The transfer of heat from one region to another due to a temperature difference is known as:

Conduction
Convection
Radiation
All of the above

In conduction heat transfer, heat is transferred through:

Direct contact between objects
Movement of a fluid
Electromagnetic waves
None of the above

The rate of heat transfer by conduction is proportional to:

Temperature difference
Area of contact
Thermal conductivity
All of the above

In convection heat transfer, heat is transferred through:

Direct contact between objects
Movement of a fluid
Electromagnetic waves
None of the above

The rate of heat transfer by convection is proportional to:

Temperature difference
Area of contact
Fluid velocity
All of the above

In radiation heat transfer, heat is transferred through:

Direct contact between objects
Movement of a fluid
Electromagnetic waves
None of the above

The rate of heat transfer by radiation is proportional to:

Temperature difference
Area of contact
Emissivity
All of the above

The first law of thermodynamics states that:

Energy cannot be created or destroyed, only transferred or transformed
The total energy of an isolated system remains constant
Heat cannot flow from a colder object to a hotter object
None of the above

The second law of thermodynamics states that:

The entropy of an isolated system always increases
Heat cannot flow from a colder object to a hotter object
The efficiency of a heat engine can never be 100%
All of the above

The third law of thermodynamics states that:

The entropy of a perfect crystal at absolute zero is zero
The entropy of a system approaches a constant value as the temperature approaches absolute zero
The entropy of a system is always positive
None of the above

A heat engine is a device that:

Converts heat into mechanical energy
Converts mechanical energy into heat
Transfers heat from a colder object to a hotter object
None of the above

The efficiency of a heat engine is defined as:

The ratio of the work output to the heat input
The ratio of the heat output to the work input
The ratio of the work output to the heat output
None of the above

The Carnot cycle is:

A theoretical heat engine cycle that has the highest possible efficiency
A practical heat engine cycle that is used in many applications
A cycle that is used to calculate the efficiency of a heat engine
None of the above

The Otto cycle is:

A practical heat engine cycle that is used in gasoline engines
A theoretical heat engine cycle that has the highest possible efficiency
A cycle that is used to calculate the efficiency of a heat engine
None of the above

The Diesel cycle is:

A practical heat engine cycle that is used in diesel engines
A theoretical heat engine cycle that has the highest possible efficiency
A cycle that is used to calculate the efficiency of a heat engine
None of the above

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