Important Scientific (96) MCQs with Answers

Which of the following elements is commonly analyzed using flame atomic absorption spectroscopy (FAAS)?

• A.Sodium
• B.Carbon
• C.Nitrogen
• D.Oxygen

Which one of the following is the function of the bubble tube aligned at a 45° angle in a spirit level?

• A.Checking horizontal surfaces
• B.Checking vertical surfaces
• C.Checking inclined surfaces
• D.Measuring liquid density

Bunsen burner is made stable by ?

• A.Increasing its length
• B.Broad and heavy base
• C.Narrow nozzle
• D.Rubber tubing

What is the primary function of a hydrophone?

• A.To measure atmospheric pressure
• B.To detect seismic waves on land
• C.To measure the depth of water bodies
• D.To detect and record sound under water

Anemometer is the instrument used for measurement of ?

• A.Rainfall
• B.Air Pressure
• C.Humidity
• D.Wind Speed

What is responsible for the high resolution of the electron microscope?

• A.Short wavelength of the electron beam
• B.High intensity of the electron beam
• C.Long wavelength of the electron beam
• D.High speed of the electron beam

A _ is used in submarines to monitor the surface of water.

• A.Telescope
• B.Microscope
• C.Periscope
• D.Kaleidoscope

Which instrument measures the speed of wind?

• A.Hygrometer
• B.Barometer
• C.Anemometer
• D.Thermometer

Past Paper MCQ

Which instrument is used to measure atmospheric pressure?

• A.Hygrometer
• B.Altimeter
• C.Anemometer
• D.Barometer

In Space, an exploration Spectroscope is used for the following?

• A.To detect gravitational waves in space
• B.To measure the distance between planets
• C.To capture high-resolution images of galaxies
• D.To study the chemical composition of Stars