A "beer engine" is a device for pumping beer, originally manually operated and typically used to dispense beer from a cask or container in a pub's basement or cellar. COUNT 2
QSN1 What is a "beer engine"? ANS1 a device for pumping beer QSN2 What is the function of a "beer engine"? ANS2 to dispense beer from a cask or container in a pub's basement or cellar