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Class 8 Science Chapter 7 mcq. We covered all the Class 8 Science Chapter 7 mcq in this post for free so that you can practice well for the exam.
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Class 8 Science Chapter 7 Objective mcq for Students
A fathometer is used to measure
(A) Earthquakes
(B) Rainfall
(C) Depth of the sea
(D) sound intensity
Option c – Depth of the sea
Which of the following pairs is not correctly matched?
(A) Manometer: Pressure
(B) Carburetor: Internal combustion engine
(C) Cardiograph: Heart movement
(D) Seismometer: Curvature of the Earth’s surface
Option d – Seismometer: Curvature of the Earth’s surface
A phonometer is used for measuring
(A) Intensity of Light
(B) Very high temperatures
(C) Frequency of electromagnetic waves
(D) Strength of the human voice during speech
Option d – Strength of the human voice during speech
The instrument commonly used for lie detection is called
(A) Polygraph
(B) Pyrometer
(C) Gyroscope
(D) Kymograph
Option a – Polygraph
Which of the following instruments measures Earthquake intensity?
(A) Seismograph
(B) Stethoscope
(C) Cosmograph
(D) Periscope
Option a – Seismograph
What does a seismograph record?
(A) Heartbeats
(B) Atmospheric pressure
(C) Earthquakes
(D) None of these
Option c – Earthquakes
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