SCIENTIFIC INSTRUMENTS AND DEVICES (MCQs)

“Sextant” is an instrument to determine:

  • (A) The sexuality in lower animals
  • (B) The blood pressure of animals
  • (C) The angular distance between two objects
  • (D) The type of strains in algae and fungi
Check Answer
  • (C) The angular distance between two objects

A device which converts mechanical energy into electrical energy is called:

  • (A) Transformer
  • (B) DC Motor
  • (C) Generator
  • (D) Capacitor
Check Answer
  • (C) Generator

To measure the value of current flowing in a circuit which device is used?

  • (A) Ammeter
  • (B) Galvanometer
  • (C) Voltmeter
  • (D) Speedometer
Check Answer
  • (A) Ammeter

What splits light into its spectrum?

  • (A) Lactometer
  • (B) Spectrometer
  • (C) Hygrometer
  • (D) Stereoscope
Check Answer
  • (B) Spectrometer

Which instrument is used to measure minute electrical currents?

  • (A) Manometer
  • (B) Hydrometer
  • (C) Ammeter
  • (D) Galvanometer
Check Answer
  • (D) Galvanometer

‘Microphone’ is used to covert sound waves into:

  • (A) Potential energy
  • (B) Kinetic energy
  • (C) Electrical energy
  • (D) Mechanical energy
Check Answer
  • (C) Electrical energy

What is the name of the device used to convert alternating current (AC) into direct current (DC)?

  • (A) Ammeter
  • (B) Galvanometer
  • (C) Rectifier
  • (D) Transformer
Check Answer
  • (C) Rectifier

What is the name of the device used to convert direct current (DC) into alternating current (AC)?

  • (A) Voltmeter
  • (B) Inverter
  • (C) Ammeter
  • (D) Rectifier
Check Answer
  • (B) Inverter

‘Chronometer’ is used to measure:

  • (A) Velocity
  • (B) Pressure
  • (C) Time
  • (D) Current
Check Answer
  • (C) Time

The device used for measurement of potential difference is known as:

  • (A) Hydrometer
  • (B) Voltmeter
  • (C) Ammeter
  • (D) Thermometer
Check Answer
  • (B) Voltmeter

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