Choose the pair that carries the same relationship as the given pair:
SPIROMETER : LUNG CAPACITY
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Barometer : Air pressure
Given pair: Spirometer : Lung capacity → instrument : what it measures (a spirometer measures the amount of air the lungs can hold)
| Pair | Relationship |
|---|---|
| (1) Telescope : Astronomer | instrument : user (an astronomer uses a telescope to look at stars) |
| (2) Barometer : Air pressure (answer) | instrument : what it measures (a barometer measures air pressure) |
| (3) Mercury : Thermometer | material : instrument (mercury is the liquid inside many thermometers) |
| (4) Spoke : Wheel | part : whole (a spoke is one of the thin bars of a wheel) |