Automobile Engineering in ME
The heat transfer from coolant to air in the radiator of an automobile engine takes place by

Radiation only
Convention only
Convection and radiation
Conduction, convection and radiation

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The difference between DOT 3 and DOT 4 brake fluids is

DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
DOT 4 fluids have a lower boiling point than DOT 3 fluid
DOT 4 fluids have a higher boiling point than DOT 3 fluid
DOT 4 fluid is more resistant to freezing than DOT 3 fluid

ANSWER DOWNLOAD EXAMIANS APP