Group-I gives a list of devices and Group-II gives the list of uses.
| Group-I | Group-II |
| P. Pitot tube | 1. Measuring pressure in a pipe |
| Q. Manometer | 2. Measuring velocity of flow in a pipe |
| R. Venturimeter | 3. Measuring air and gas velocity |
| S. Anemometer | 4. Measuring discharge in a pipe |
The correct match of Group-I with Group-II is
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