Fluid Mechanics and Heat Transfer Quiz

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What is the primary focus of transport phenomena?

Mass transfer only

Heat transfer only

Transport or movement of a given property by molecular movement (correct)

Momentum transfer only

Which of the following is not a transported property in transport phenomena?

Thermal energy

Mass

Momentum

Electricity (correct)

Where can one find publications related to transport phenomena?

Online journals

Bookstores

Libraries and as e-Books (correct)

Research institutions

Which author wrote 'Heat Transfer: A Practical Approach'?

Y.A. Çengel Signup and view all the answers

What is the title of the book written by J.M. Coulson, J.F. Richardson, J.R. Backhurst, and J.H. Harker?

Chemical Engineering Signup and view all the answers

How many edition of 'Heat Transfer' is written by J.P. Holman?

10th Signup and view all the answers

What is the value of the error function at λ = 0?

0 Signup and view all the answers

What is the complementary error function?

1 - erf(λ) Signup and view all the answers

What is the relationship between the error function and λ?

erf(-λ) = -erf(λ) Signup and view all the answers

What is the thermal penetration thickness δT?

The distance x for which the temperature dropped to a value of 0.01(Ts - Ti) Signup and view all the answers

When does the error function reach a value of 0.99?

When λ is about 2 Signup and view all the answers

What is the condition for using the semi-infinite solid solution?

When δT is small with respect to the plate thickness L Signup and view all the answers

What type of flow is characterized by the entrance region?

Laminar Signup and view all the answers

What is the primary application of the equations of change in the context of fluid flow?

Laminar and turbulent flow Signup and view all the answers

What type of heat transfer is characterized by a constant wall temperature?

Heat flux Signup and view all the answers

What is a common application of the equation of thermal energy?

Heat exchangers Signup and view all the answers

What type of flow is characterized by a boundary layer?

Boundary layer Signup and view all the answers

What is a common application of convection heat transfer?

Heat exchangers Signup and view all the answers

What is internal energy associated with in a substance?

molecular motion, chemical energy, surface energy, and energy stored in an electric condenser or battery Signup and view all the answers

What is the effect of an increase in internal energy in a substance?

an increase in temperature Signup and view all the answers

What is the equation for the change in internal energy in a closed system?

Q - W = U2 - U1 Signup and view all the answers

What is true about isolated systems?

Q = 0, W = 0 Signup and view all the answers

What is the equation for the energy balance in a reversible process?

δQ - δW = dU Signup and view all the answers

What is the equation for the enthalpy change in a reversible, constant pressure process?

Q = ΔH Signup and view all the answers

What is assumed to be constant across the boundary layer?

Pressure across the boundary layer Signup and view all the answers

Which of the following is NOT a boundary condition for the temperature profile?

vx = v∞ at y = ∞ Signup and view all the answers

What is the main assumption for neglecting vy terms in the Navier-Stokes equation y-component?

vy is much smaller than vx Signup and view all the answers

What is the simplification used for the boundary layer equation of motion x-component?

∂2vx/∂x2 is negligible Signup and view all the answers

Who developed an exact solution for the boundary layer momentum equation?

Blasius Signup and view all the answers

What is the purpose of the boundary layer assumption that the boundary layer is thin?

To show that ∂2vx/∂x2 is much smaller than ∂2vx/∂y2 Signup and view all the answers