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A _______ is an instrument used for measuring small pressures, where accuracy is required.


1. single column inclined manometer
2. ammeter
3. anemometer
4. hygrometer

1 Answer

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Correct Answer - Option 1 : single column inclined manometer

Explanation:

A simple manometer consists of a glass tube having one of its ends connected to a point where pressure is to be measured and another end remains open to the atmosphere.

Common types of simple manometers are:

  • Piezometer
  • U-tube Manometer
  • Single Column Manometer

Differential Manometers measure the difference of pressure between two points in a fluid system and cannot measure the actual pressures at any point in the system. It consists of a U-tube, containing a heavy liquid, whose two ends are connected to the points whose difference of pressure is to be measured.

  • Upright U-Tube manometer
  • Inverted U-Tube manometer
  • Inclined Differential manometer
  • Micro manometer

  1.  <!--[endif]-->Ammeter: It is a device used for measuring electric current in the circuit. Unit of current is ‘ampere’,  hence the name ammeter i.e. Ampere-meter.
  2. Anemometer:  It is a device for measuring the speed of airflow in the atmosphere, in wind tunnels, and in other gas-flow applications.
  3. Hygrometer: It is an instrument used in meteorological science to measure the humidity or amount of water vapor in the air.

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