Important Scientific (96) MCQs with Answers

Past Paper MCQ

An instrument used to measure the altitude of an object from sea level is called?

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

Another name for the diaphragm of microscope is?

• A.Iris
• B.Condenser
• C.Objective lens
• D.Eyepiece

Gooch crucible is used to filter the solution of ?

• A.NaOH
• B.K₂Cr₂O₇
• C.KMnO₄
• D.HCl

Which of the following is used to calibrate the absorbance scale in a UV-Visible instrument?

• A.KMnO₄
• B.K₂Cr₂O₇
• C.CuSO₄
• D.FeCl₃

Which one of the following detectors is not suitable to use with gas chromatography?

• A.Flame Ionization Detector (FID)
• B.Thermal Conductivity Detector (TCD)
• C.Atomic Absorption Spectrometer (AAS)
• D.Electron Capture Detector (ECD)

Which technique is used to assess the concentration or amount of a given atomic, molecular, or ionic chemical species?

• A.Chromatography
• B.Spectroscopy
• C.Titration
• D.Calorimetry

Which instrument is most suitable to measure the internal diameter of a cylinder?

• A.Vernier caliper
• B.Screw gauge
• C.Measuring tape
• D.Barometer

is used to get Celsius or Fahrenheit

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

What does a fathometer measure?

• A.Atmospheric pressure
• B.Depth of water
• C.Speed of wind
• D.Height of mountains

Past Paper MCQ

An instrument that measures air pressure is called _?

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