Measuring Devices and Scales

31. Electroencephalogram (EEG) is used in monitoring : [64th B.P.S.C (PRE) 2018]

(a) Heart
(b) Liver
(c) Pancrease
(d) Brain

Correct Answer: (d) Brain

Solution: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. EEGs are commonly used in the diagnosis and monitoring of neurological conditions such as epilepsy, sleep disorders, coma, and brain death.

32. Match the list-1 with list-2 and select the correct answer from the codes given below the lists : [U.P.P.C.S. (PRE) 2008]

List-1	List-2
stethoscope	to measure the intensity of light
sphygmomanometer	to check the purity of gold
caratometer	to hear heart sound
luxmeter	to measure blood pressure

code :

A	B	C	D
1	2	3	4
4	3	2	1
3	4	2	1
2	1	4	3

(a)
(b)
(c)
(d)

Correct Answer: (c)

Solution: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.

33. The name of the equipment used for measuring blood pressure is : [U.P.P.C.S. (PRE) 2007]

(a) Tacheometer
(b) Sphygmomanometer
(c) Barometer
(d) Actiometer

Correct Answer: (b) Sphygmomanometer

Solution:Sphygmomanometer is used to measure the blood pressure.

34. The apparatus used to measure the intensity of light is known as - [U.P.P.C.S.(SPL) (MAINS) 2004]

(a) Colorimeter
(b) Anemometer
(c) Luxmeter
(d)Altimeter

Correct Answer: (c) Luxmeter

Solution:

The apparatus used to measure the intensity of light is known as a Luxmeter.

Colorimeter: This instrument is used to measure the absorbance and transmittance of light through a solution, allowing for the determination of the concentration of a colored substance in that solution.
Anemometer: This device is used to measure the speed of wind.
Altimeter: This instrument is used to measure altitude or height above a reference point, often sea level.

35. RADAR is used for :

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

(a) Detecting device by using the light waves.
(b) Reflecting sound waves to detect objects.
(c) Determine the presence and location of objects with radio waves.
(d) Tracking rain-bearing clouds.

Correct Answer: (c) Determine the presence and location of objects with radio waves.

Solution: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.

36. Which is the following quantities is measured on the Richter scale ? [R.A.S/R.T.S.(PRE)2003]

(a) Speed of the glacier
(b) Population growth
(c) Intensity of the earthquake
(d) Temperature inside the earth

Correct Answer: (c) Intensity of the earthquake

Solution: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 .

37. The intensity of the earthquake is measured by : [U.P. Lower sub. (pre)2015,2004]

(a) On the Richter scale
(b) On the Kelvin scale
(c) In decibel
(d) In pascal

Correct Answer: (a) On the Richter scale

Solution: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 .

38. Richter scale is used for measuring - [U.P.P.C.S.(SPL) (MAINS) 2008]

(a) Intensity of light
(b) Intensity of sound
(c) Amplitude of seismic waves
(d) velocity of sound

Correct Answer: (c) Amplitude of seismic waves

Solution: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 .

39. Which one is not correct matched ? [Uttarakhand P.C.S.(PRE)2002]

a) Celcius-temperature
b) Kilowatt hour -electricity
c) Rh factor -blood
d) Richter scale- humidity

(a) Rh factor -blood
(b) Kilowatt hour -electricity
(c) Celcius-temperature
(d) Richter scale- humidity

Correct Answer: (d) Richter scale- humidity

Solution: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.

40. Which of the following is a seismometer device ? [U.P.P.C.S.(PRE) 1990]

(a) Crescograph
(b) Seismograph
(c) Geiger counter
(d) Raingauge

Correct Answer: (b) Seismograph

Solution: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.

Measuring Devices and Scales

31. Electroencephalogram (EEG) is used in monitoring : [64th B.P.S.C (PRE) 2018]

32. Match the list-1 with list-2 and select the correct answer from the codes given below the lists : [U.P.P.C.S. (PRE) 2008]

33. The name of the equipment used for measuring blood pressure is : [U.P.P.C.S. (PRE) 2007]

34. The apparatus used to measure the intensity of light is known as - [U.P.P.C.S.(SPL) (MAINS) 2004]

35. RADAR is used for :

36. Which is the following quantities is measured on the Richter scale ? [R.A.S/R.T.S.(PRE)2003]

37. The intensity of the earthquake is measured by : [U.P. Lower sub. (pre)2015,2004]

38. Richter scale is used for measuring - [U.P.P.C.S.(SPL) (MAINS) 2008]

39. Which one is not correct matched ? [Uttarakhand P.C.S.(PRE)2002]

40. Which of the following is a seismometer device ? [U.P.P.C.S.(PRE) 1990]

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