| Answer | Crossword Clue |
|---|---|
| BEVELS | Instruments for drawing angles |
| BEVEL | Instrument for drawing angles |
| BEVELS | Tools for drawing angles. |
| DIAGRAPHS | Instruments for drawing figures. |
| 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) |
| freehand | (esp. with reference to drawing) Done manually without the aid of instruments such as rulers |
