In a good thermos flask, the main cause of heat loss is
A.
conduction through the cork
B.
the plastic base of the thermos flask
C.
the silvered walls and shiny metals
D.
the outer cover or jacket.
Answer: C
To see detailed solution to this question and thousands of other questions offline, download TestDriller UTME. Practice rigorously for UTME, enjoy educational games, summary of JAMB literature books, compete with your peers, win prizes and more.