Answer:
Constant Volume Calorimeter.
Step-by-step explanation:
In order to measure the heat released in burning of a gasoline, we generally use closed calorimeter. It is a constant volume calorimter.
Most common example of such calorimter is Bomb calorimeter.
We use closed calorimter or constant volume calorimter as large amount of heat is released during combustion of a fuel or gasoline.