Heat Transfer - Jamb Physics Past Questions and Answers

Question 41:

• JAMB 2018

A room is heated by means of a charcoal fire, an occupants of the room standing away from the fire is warmed mainly by

A. Convection
B. Radiation
C. Conduction
D. Reflection

Question 42:

• JAMB 2018

Which of the following phenomena cannot be explained by the molecular theory of matter?

A. Conduction
B. Convection
C. Expansion
D. Radiation

Question 43:

• JAMB 2019

The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?
I. Lagging the Calorimeter
II. Ensuring that only S.I units are used
III. Weighing the calorimeter, the lid and the stirrer.

A. I only
B. I & II only
C. I & III only
D. II & III only

Question 44:

• JAMB 2019

Heat may be transferred by conduction, convention and radiation. By which of these methods does heat travel through vacuum?

A. Conduction only
B. Convection only
C. Radiation only
D. All these methods