Question : Which of the following pairings is incorrect?
Option 1: Hygrometer- water vapour content of the atmosphere
Option 2: Lactometer - Specific gravity of liquids
Option 3: Anemometer- Speed of the wind
Option 4: Seismograph- Earthquakes
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Correct Answer: Lactometer - Specific gravity of liquids
Solution : The correct option is the Lactometer - specific gravity of liquids.
A hydrometer or lactometer is a device that uses the concept of buoyancy to measure the density or relative density of liquids. Typically, they are graduated and calibrated using one or more scales, like specific gravity. A lactometer measures the specific gravity of milk, not liquids in general. It gauges milk density to assess its composition. Specific gravity is the ratio of a substance's density to the density of a reference substance, usually water. The lactometer is specific to assessing milk density, not that of all liquids.
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Question : An anemometer measures which of the following?
Option 1: Speed of light
Option 2: Speed of wind
Option 3: Speed of water current
Option 4: Speed of satellites
Question : A seismograph is used to measure:
Option 1: rain precipitation
Option 2: underground water level
Option 3: earthquakes
Option 4: underground mineral content
Question : Directions: In the following question, select the related word from the given alternatives. Ammeter : Current :: ? : ?
Option 1: Scale : Speed
Option 2: Seismograph : Density
Option 3: Barometer : Mass
Option 4: Anemometer : Wind
Question : What is the maximum water vapour content in the atmosphere?
Option 1: 2 to 3 percent
Option 2: 3 to 4 percent
Option 3: 4 to 5 percent
Option 4: 5 to 6 percent
Question : Humidity is measured by Which of the following?
Option 1: Lactometer
Option 2: Polarimeter
Option 3: Thermometer
Option 4: Hygrometer
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