Heat Transfer
Heat flux through several resistances in series in analogous to the current flowing through several.

capacitors in series
none of the listed here
resistances in parallel
resistances in series

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred

By direct contact of hot flue gas with air
Through a metallic wall
None of these
By heating an intermediate material (like chequor bricks) and then heating the air from this hot material

ANSWER DOWNLOAD EXAMIANS APP