pavan2312's version from 2016-04-07 08:47


Question Answer
AltimeterIt measures altitudes and is used in aircrafts
AmmeterIt measures strength of electric current (in amperes)
AnemometerIt measures force and velocity of wind.
AudiometerIt measures intensity of sound.
Audio - PhoneIt is used for improving imperfect sense of hearing.


Question Answer
BarographIt is used for continuous recording of atmospheric pressure.
BarometerIt measures atmospheric pressure.
BinocularIt is used to view distant objects.
BolometerIt measures heat radiation.
CalorimeterIt measures quantity of heat.
CarburetorIt is used in an internal combustion engine for charging air with petrol vapour.
CardiogramIt traces movements of the heart, recorded on a cardiograph.
ChronometerIt determines longitude of a place kept onboard ship.
Cinematography It is an instrument used in cinema making to throw on screen and enlarged image of photograph.
CrescographIt measures the growth in plants.
Cyclotron A charged particle accelerator which can accelerate charged particles to high energies.


Question Answer
DynamoIt converts mechanical energy into electrical energy.
DynamometerIt measures electrical power.
ElectrometerIt measures electricity.
ElectroscopeIt detects presence of an electric charge.
EndoscopeIt examines internal parts of the body.
EudiometerGlass tube for measuring volume changes in chemical reactions between gases.
FathometerIt measures the depth of the ocean.
GalvanometerIt measures the electric current of low magnitude.
HydrometerIt measures the specific gravity of liquids.
HygrometerIt measures humidity in air.
HydrophoneIt measures sound under water.


Question Answer
Kymograph It graphically records physiological movements (Blood pressure and heart beat).
LactometerIt determines the purity of milk.
ManometerIt measures the pressure of gases.
Mariner's CompassIt is an instrument used by the sailors to determine the direction.
MicrophoneIt converts the sound waves into electrical vibrations and to magnify the sound.
Microscope It is used to obtain magnified view of small objects.


Question Answer
OdometerAn instrument by which the distance covered by wheeled vehicles is measured.
Phonograph An instrument for producing sound.
Photometer The instrument compares the luminous intensity of the source of light.
Periscope It is used to view objects above sea level (used in sub - marines).
PotentiometerIt is used for comparing electromotive force of cells.
Pyrometer It measures very high temperature.
Radar It is used for detecting the direction and range of an approaching plane by means of radio microwaves.
Rain Gauge An apparatus for recording rainfall at a particular place.
Radiometer It measures the emission of radiant energy.
RefractometerIt measures refractive index.


Question Answer
SaccharimeterIt measures the amount of sugar in the solution.
SeismographIt measures the intensity of earthquake shocks.
Salinometer It determines salinity of solution.
SextantThis is used by navigators to find the latitude of a place by measuring the elevation above the horizon of the sun or another star.
Spectrometer It is an instrument for measuring the energy distribution of a particular type of radiation.
SpeedometerIt is an instrument placed in a vehicle to record its speed.
SphygmomanometerIt measures blood pressure.
Spherometer It measures the curvatures of surfaces.
Stereoscope It is used to view two dimensional pictures.
Stethoscope An instrument which is used by the doctors to hear and analyze heart and lung sounds.
StroboscopeIt is used to view rapidly moving objects.


Question Answer
Tachometer An instrument used in measuring speeds of aero - planes and motor boots.
TeleprinterThis instrument receives and sends typed messages from one place to another.
Telescope It views distant objects in space.
Theodolite It measures horizontal and vertical angles.
Thermometer This instrument is used for the measurement of temperatures.
Thermostat It regulates the temperature at o particular point.
Viscometer It measures the viscosity of liquids.
Voltmeter It measures the electric potential difference between two points.