Heat transfer: JAMB Physics Past Questions and Answers

What the JAMB syllabus covers in Heat transfer

Our summary: Conduction, convection and radiation, and everyday examples such as the vacuum flask and sea breezes.

• Conduction, convection and radiation as modes of heat transfer
• Temperature gradient, thermal conductivity and heat flux
• Effect of the nature of the surface on the energy radiated and absorbed by it
• The conductivities of common materials
• The thermos flask/vacuum flask
• Land and sea breeze
• Combustion engines

Objectives

• differentiate between conduction, convection and radiation as modes of heat transfer;
• solve problems on temperature gradient, thermal conductivity and heat flux;
• assess the effect of the nature of the surface on the energy radiated and absorbed by it;
• compare the conductivities of common materials;
• relate the component part of the working of the thermos flask;
• differentiate between land and sea breeze;
• analyse the principles of operating internal combustion jet engines, rockets;
• understand the advantages and disadvantages of electric engine over combustion engine.

Syllabus content © The Joint Admissions and Matriculation Board (UTME).