Heat Transfer Multiple Choice

Generate an illustration of various heat transfer mechanisms, such as conduction, convection, and radiation, with a scientific aesthetic and vibrant colors.

Heat Transfer Mastery Quiz

Test your knowledge on heat transfer concepts with our comprehensive quiz! This quiz features 30 multiple-choice questions covering essential topics such as conduction, convection, Reynolds number, and more. Whether you're a student, teacher, or professional, this quiz is designed to challenge and enhance your understanding of heat transfer principles.

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30 detailed questions
Multiple-choice format
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30 Questions8 MinutesCreated by HeatingWave472

If the general conduction equation becomes ▽^2 T = 0

Steady State

Steady State w/o heat gen

Transient State

Steady State w/ heat gen

For conductors that are arranged in parallel, which of the following doesn't vary?

Area

�T

Heat flux in an electrical circuit is analogous to __.

Current

Resistance

Voltage

None of the above

For conductors that are arranged in series, which of the following doesn't vary?

Thickness

�T

Temperature Difference in an electrical circuit is analogous to __.

Current

Resistance

Voltage

None of the above

A steady state heat transfer with internal energy conversion is described by __.

Fourier Equation

Poisson Equation

Laplace Equation

Reynold's Equation

For conductors arranged in parallel, which conductor posses the greatest heat flux?

Minimum K

Minimum A

Maximum K

Maximum A

In a conduction heat transfer, heat flux is __ proportional to temperature gradient.

Directly

Independently

Inversely

All of the above

Which thermal conductivity describes a good material for insulation? K = (in W/mC)

0.69 (nice)

1.83

0.15

11.1

Heat will flow from high temperature to low temperature unless it is aided by an external system

Fourier's Law of Heat Conduction

First Law of Thermodynamics

Second Law of Thermodynamics

Newton's Law of Cooling

A ratio between kinematic viscosity and thermal diffusivity.

Prandtl Number

Reynolds Number

Stanton Number

Mach Number

A flow line, which Reynolds Number is equal to 10000 is _________.

Laminar

Stagnant

Critical

Turbulent

A gaseous stream flows in a diverging tube, what happen to the density if the velocity is constant?

remain constant

Zero

Increase

Decrease

A flow line , which Reynolds Number equal to 1000 is _________.

Turbulent

Critical

Stagnant

Laminar

A ratio between kinematic viscosity to absolute viscosity.

Density

Conductivity

Stanton Number

specific volume

Approximately, what is the Prandtl Number for liquid metals?

1.0

1000

0.01

A gaseous stream flows in a converging tube, what happen to the velocity if the density is constant?

Zero

remain constant

Decreasing

increasing

Stanton Number is ______ to thermal convection coefficient.

directly proportional

inversely proportional

dependent

independent

A ratio between velocity of flow line to the local velocity of sound.

Mach number

Prandtl number

Reynolds number

Stanton number

For gasses that are exposed to a constant heat flux, the Stanton Number is ______.

constant

decreasing

zero

increasing

Oil flows in a converging tube, what happen to the Reynolds number?

decrease

remain constant

Increase

zero

Which of the following dimensionless ratio has restrictions in predicting h for turbulent flow

Reynolds number

Mach number

Prandtl number

Stanton number

If the Nusselt Number increases, what happens to heat fluxes?

remain constant

increase

zero

decrease

Which of the following dimensionless ratio is useful in identifying the type of flow?

Reynolds number

Mach number

Prandtl Number

Stanton number

A flow line, in which Reynolds Number is equal to zero is _________.

laminar

critical

stagnant

turbulent

Which of the following dimensionless ratio has restrictions in predicting h for laminar flow?

Prandtl Number

Stanton number

Mach number

Reynolds number

Which specific heat of the gas is to be considered in the calculation of Prandtl?

constant pressure

difference of cv and cp

average of cv and cp

constant volume

What happen to the absolute viscosity of common liquids as the temperature increase?

upredictable

increase

decrease

remain constant

A ratio between inertia force and viscous force

Reynolds number

Prandtl number

Mach number

Stanton number

In a convection heat transfer, heat flux is ______ proportional to temperature

all of the above

independently

inversely

Directly

Heat Transfer Multiple Choice

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