Measuring Devices and Scales
Total Questions: 52
Earthquake generate seismic waves which can be detected with a sensitve instrument called Seismograph. Crescograph is used to measure the growth of plants.Geiger counter is a device used to detect the radioactivity or radiations.
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An Altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.Ammeter is used to measure electric current in a circuit.A seismograph is used to measure earthquake and ohm is the unit of electric resistance.
Fathometer is an instrument used to measure the depth of the sea or water or a submerged objects by means of ultrasonic waves.The barometer ,hygrometer and altimeter are used to measure the atmospheric pressure ,atmospheric moisture and height of an object respectively.
Anemometer : wind velocity Seismograph : earthquake Barograph : atmospheric pressure Hygrometer : humidity
a) Manometer - Pressure b) Carburetor - internal combustion engine c) Cardiography - heart movement d) Seismometer - curvature of the surface
Among the given option (d) is not correctly matched .Seismograph is used to measure the seismic waves generated by earthquake. Carburetor is a device that blends air fuels for an instruments used to records the mechanical movements of the heart.Manometer is an instruments that uses a column of liquids to measure pressure.
Phonometer is an instrument which is used for testing the force of human voice in speaking. Photometer is used for measuring the intensity of light.
A polygraph popularly referred to detect the lie ,measure and records several physiological indices such as blood pressure respiration and skin conductivity while the subjects is asked and the answer a series of question.A pyrometer is a type of remote-sensing device used to measure the high temperature of a surface.A gyroscope is a spinning wheel or disc in which the axis of rotation is free to assume any orientation. Kymograph is an instrument for recording variations in pressure as of the blood or in tension as of a muscle by means of a pen or stylus that marks a rotating drum.
