OPSC OAS 2020 PrelimsScience & TechnologyQuestion 21
Solved previous year question from the OPSC OAS/OCS 2020 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
Hypsometer is used to measure:
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Answer & Explanation
Correct answer: (B) The boiling point of liquids
- A Hypsometer is an instrument used to measure the boiling point of liquids.
- It can also be used to determine altitude (elevation) indirectly, since the boiling point of water changes with atmospheric pressure, which in turn varies with altitude.
The other options are incorrect
- (A) Pressure of gas:Manometer measures gas pressure. The barometer measures atmospheric pressure.
- (C) Level of humidity:Hygrometer measures humidity
- (D) Depth of ocean:Fathometer measures ocean depth

