Venturi tube is used for _____.

1. 1. measuring flow of a liquid
   2. treasuring density
   3. measuring specific gravity
   4. measuring intensity of an earthquake

Which instrument is used to measure the intensity of sound?

1. 1. Barometer
   2. Audiometer
   3. Anemometer
   4. Hydrophone

The intensity of an earthquake is measured with _____.

1. 1. Ammeter
   2. Hydrometer
   3. Polygraph
   4. Seismograph

For which purpose instrument ‘Centrifuge’ is used?

1. 1. To separate liquids
   2. To separate solids
   3. To separate mixtures of chemicals
   4. None of these

Why is Ammeter used?

1. 1. To measure pollution in the air and water
   2. To measure acidity of water
   3. To measure electric current
   4. None of these

Density of milk is measured by _____.

1. 1. Ammeter
   2. Lactometer
   3. Spectrometer
   4. None of these

The instrument used to measure electric current is _____.

1. 1. Ammeter
   2. Electrometer
   3. Galvanometer
   4. Spectrometer

Hygrometer is used to measure _____.

1. 1. Purity of milk
   2. Relative humidity
   3. Specific gravity of a liquid
   4. None of these

Richter scale is used to measure _____.

1. 1. Velocity of wind
   2. Density of liquid
   3. Intensity of earthquakes
   4. Humidity of air

Which instrument is used for the measurement of pressure?

1. 1. Ammeter
   2. Manometer
   3. Lactometer
   4. Saccharimeter