EGEE 304 exam 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
For ______ , a thermal gradient in a system drives a proportional heat flux through random
motion of atoms in accordance to the___________ of the materials in that system. - CORRECT
ANSWER - conduction and thermal conductivity
What are the symbols of Heat, Heat Rate, Heat Flux, and Thermal Energy? - CORRECT
ANSWER - Q , q, q'', U
________is the heat transfer due to the combined influence of bulk and random_________ for
fluid flow over a surface. - CORRECT ANSWER - Convection and motion
Which of the following concept(s) are quantified with units of energy? - CORRECT
ANSWER - Heat
What are the three modes of heat transfer? - CORRECT ANSWER - Conduction, Convection,
and Radiation
In general, thermal conductivity increases as the ___________ increases. - CORRECT
ANSWER - mean free path, density, and electrical conductivity
Fourier's Law is a ____ equation. - CORRECT ANSWER - rate
In most nonconducting solids, the primary form of heat conduction is through ________. -
CORRECT ANSWER - Phonons
Which materials conduct the majority of their thermal energy through the free-electron
mechanism? - CORRECT ANSWER - pure metals
Exam Questions and CORRECT Answers
For ______ , a thermal gradient in a system drives a proportional heat flux through random
motion of atoms in accordance to the___________ of the materials in that system. - CORRECT
ANSWER - conduction and thermal conductivity
What are the symbols of Heat, Heat Rate, Heat Flux, and Thermal Energy? - CORRECT
ANSWER - Q , q, q'', U
________is the heat transfer due to the combined influence of bulk and random_________ for
fluid flow over a surface. - CORRECT ANSWER - Convection and motion
Which of the following concept(s) are quantified with units of energy? - CORRECT
ANSWER - Heat
What are the three modes of heat transfer? - CORRECT ANSWER - Conduction, Convection,
and Radiation
In general, thermal conductivity increases as the ___________ increases. - CORRECT
ANSWER - mean free path, density, and electrical conductivity
Fourier's Law is a ____ equation. - CORRECT ANSWER - rate
In most nonconducting solids, the primary form of heat conduction is through ________. -
CORRECT ANSWER - Phonons
Which materials conduct the majority of their thermal energy through the free-electron
mechanism? - CORRECT ANSWER - pure metals
