Measuring Devices and Scales
Total Questions: 52
An EEG is the test that detects electrical activity of the brain using small metal discs attached to the scalp.Brain cells communicate via electrical impulse and are active all the time, even when a person is sleeping .This activity shows up wavy lines on an EEG recording.
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Stethoscope is an acoustic medical device used for listening to the action of someone,s heart sound. Sphygmomanometer is used to measure the blood pressure. Caratometer is an internationally acclaimed device for checking the purity of gold. Luxmeter is used to measure the intensity of light.
U.P.P.C.S.(pre)2008 U.P.P.C.S.(pre)1996 U.P.U.D.A./L.D.A.(Pre)2001 U.P. Lower sub. (pre)2004
RADAR stands for Radio Detecting and Ranging . As indicated by the name it is based on the radio waves. it refers to the technique of using radio waves to detect the presence of objects.It can be used to detect the aircraft ,ships spacecraft,vehicles etc.
The Richter scale is used to measure the intensity of the earthquake.It was invented in 1935 by Charles F.Richter of the California Institute of Technology as mathematical device to compose the size of the earthquake.Richter scale is used to measure the rate of magnitude of an earthquake that is amount of energy released during an earthquake. Note : It is noted that intensity of the earthquake is rated on the Mercalli scale .
a) Celcius-temperature b) Kilowatt hour -electricity c) Rh factor -blood d) Richter scale- humidity
Richter scale is not used to measure the humidity.In fact it is used to rate the magnitude of an earthquake.Remaining pairs are correctly matched.
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.
