| Answer | Crossword Clue |
|---|---|
| POPUPADZ | Tool used to open a stuck jack-in-the-box? |
| pulsejet | jet engine equipped with valves that continuously open to admit air, then close during combustion, giving a pulsating thrust: used to power the V-1, a German buzz bomb, in World War II |
| pushrods | rod in an overhead-valve engine that is part of the linkage used to open and close the valves |
| pushrod | rod in an overhead-valve engine that is part of the linkage used to open and close the valves |
| tumbrels | An open cart that tilted backward to empty out its load, in particular one used to convey condemned prisoners to the guillotine during the French Revolution |
