In the following question, out of the four alternatives, choose the one which can be substituted for the given words/sentence.
An instrument barometer measuring the pressure of gases.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Manometer.
Let's have a look at the meaning of the given options-
- barometer- an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
- anemometer- an instrument for measuring the speed of the wind, or of any current of gas.
- micrometer- a gauge that measures small distances or thicknesses between its two faces, one of which can be moved away from or towards the other by turning a screw with a fine thread.
- manometer- an instrument for measuring the pressure acting on a column of fluid, consisting of a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.
As the chosen option expresses the meaning of the given group of words it will be the correct answer.