| Answer | Crossword Clue |
|---|---|
| DEGREEDAYS | Units used for measuring fuel needs |
| venturi | a short tube with a tapering constriction in the middle that causes an increase in the velocity of flow of a fluid and a corresponding decrease in fluid pressure and that is used especially in measuring fluid flow or for creating a suction (as for driving aircraft instruments or drawing fuel into the flow stream of a carburetor) |
