Q.1 Which instrument is used to measure the latitudes in aircraft?
Ans:- Altimeter
Q.2 Which instrument is used to measure the strength of electric current?
Ans:- Ammeter
Q.3 Which instrument is used to measure the intensity of sound?
Ans:- Audiometer
Q.4 Which instrument is used to measure the force and velocity of wind and directions
Ans:- Anemometer
Q.5 Which instrument is used to measure the depth of the ocean
Ans:- Fathometer
Q.6 Which instrument is used to measure the electric current?
Ans:- Galvanometer
Q.7 Which instrument is used to measure the magnetic flux?
Ans:- Flux meter
Q.8 Which instrument is used to examine internal parts of the body?
Ans:- Endoscope
Q.9 Which instrument is used to measure the atmospheric pressure?
Ans:- Barograph
Q.10 Which instrument is used to measure the recordings of atmospheric pressure
Ans:- Barograph(Same Gadget)
Q.11 Which instrument is used to measure the heat radiation?
Ans:- Bolometer
Q.12 Which instrument is used to measure the inner and outer diameters of bodies?
Ans:- Callipers
Q.13 Which instrument is used to measure the power of electric current
Ans:- Watt meter
Q.14 Which instrument is used to measure the electric potential difference between two points?
Ans:- Voltmeter
Q.15 Which instrument is used to measure the wavelength of the radio wave
Ans:- Wavemeter
Q.16 Which instrument is used to measure the viscosity of liquid?
Ans:- Viscometer
Q.17 Which instrument is used in a submarine to see the objects above sea level?
Ans:- Periscope
Q.18 Which instrument is used to determine the density and coefficient of expansion of liquids?
Ans:- Pyrometer
Q.19 Which instrument is used to record changes in heartbeat, blood pressure, and respiration?
Ans:- Polygraph
Q.20 Which instrument is used to compare the luminous intensity of the source of light?
Ans:- photometer
Q.21 Which instrument is used to measure the curvature of spherical objects?
Ans:- Spherometer
Q.22 Which instrument is used to record spectra?
Ans:- Spectroscope
Q.23 Which instrument is used to measure the height of very distant objects and also used by navigators to find the latitude?
Ans:- Spectrometer
Q.24 Which instrument is used to measure the height of very distant objects and also used by navigators to find the latitude?
Ans:- Sextant
Q.25 Which instrument is used to record physical happenings at a distant place?
Ans:- Telemeter
Q.26 Which instrument is used to regulate the temperature at a particular point?
Ans:- Thermostat
Q.27 Which instrument is used to measure the pitch of a sound?
Ans:- Tonometer
Q.28 Which instrument is used to receive a signal and transmit a reply immediately?
Ans:- Transponder
Q.29 Which instrument is used to measure the scattering of light by particles suspended in a liquid?
Ans:- Nephetometer
Q.30 Which instrument is used to measure electrical resistance in ohms?
Ans:- Ohmmeter
Q.31 Which instrument is used to measure the frequency of electromagnetic waves?
Ans:- Ondometer
Q.32 Which instrument is used to measure a very high temperature?
Ans:- Pyrometer
Q.33 Which instrument is used to determine the intensity of colours?
Ans:- Colorimeter
Q.34 Which instrument is used to determine heights?
Ans:- Cathetometer
Q.35 Which instrument is used to longitude of a vessel at sea?
Ans:- Chronometer
Q.36 Which instrument is used to convert AC to DC?
Ans:- Commutator
Q.37 Which instrument is used to measure changes in the volume of substances?
Ans:- Dilatometer
Q.38 Which instrument is used to convert mechanical energy into electrical energy?
Ans:- Dynamo
Q.39 Which instrument is used to a charged particle accelerator that can accelerate charged particles to high energies?
Ans:- Cyclotron
Q.40 Which instrument is used to detect the presence of an electric charge?
Ans:- Electroscope
Q.41 Which instrument is used to measure sound underwater?
Ans:- Hydrophone
Q.42 Which instrument is used to measure the level of humidity?
Ans:- Hygrometer
Q.43 Which instrument is used to shows the changes in atmospheric humidity?
Ans:- Hygroscope
Q.44 Which instrument is used to determine the boiling points of liquids?
Ans:- Hypsometer
Q.45 Which instrument is used to measure the pressure of glass?
Ans:- Mach meter
Q.46 Which instrument is used to determine the speed of an aircraft in terms of sound?
Ans:- Mach meter
Q.47 Which instrument is used to compare magnetic movements and fields?
Ans:- Magnetometer
Q.48 Which instrument is used to convert sound waves into electrical vibrations
Ans:- Micro meter
Q.49 Which instrument is used to measure heat radiation?
Ans:- Radio Micro meter
Q.50 Which instrument is used to detect the direction and speed of an object utilising radio waves?
Ans:- Radar
Q.51 Which instrument is used to determine the salinity of solutions?
Ans:- Salinometer
Q.52 Which instrument is used to measure refractive indices?
Ans:- Radio micro meter
Q.53 Which instrument is used to measure the strength of direct current?
Ans:- Galvanometer
Q.54 Which instrument is used to view rapidly moving objects?
Ans:- Stroboscope
Q.55 Which instrument is used to view two-dimensional pictures?
Ans:- Stereoscope
Q.56 Which instrument is used to determine the rotational speed of a shaft (used in air planes and motorboats)?
Ans:- Tachometer
Q.57 Light year is a unit of?
Ans:- Distance
Q.58 Radian is used to measure?
Ans:- Angle
Q.59 Kelvin is used to measuring?
Ans:- Temperature
Q.60 Candela is used to measuring?
Ans:- Intensity of flame
Q.61 Steradian is used to measure?
Ans:- Solid angle
Q.62 Newton is used to measuring?
Ans:- Force
Q.63 Radian per second is unit of?
Ans:- Angle Velocity
Q.64 Kilo gram meter per second is unit of?
Ans:- Momentum
Q.65 Kilo gram square meter is a unit of?
Ans:- Moment of Inertia
Q.66 Hertz is a unit of?
Ans:- Frequency
Q.67 Unit of Pressure is?
Ans:- Pascal
Q.68 Unit of Impulse?
Ans:- Newton second
Q.69 Unit of Power?
Ans:- Watt
Q.70 Unit of Surface Tension?
Ans:- Newton Per Meter
Q.71 What is the unit of Work and Energy?
Ans:- Joule
Q.72 What is the unit of viscosity?
Ans:- Newton second per Square meter
Q.73 What is the unit of Electric Charge?
Ans:- Coulomb
Q.74 What is the unit of Thermal conductivity?
Ans:- Watt Per Meter Per Degree Celsius
Q.75 What is the unit of Specific Heat capacity?
Ans:- Joule per kilo gram per Kelvin
Q.76 What is the unit of Electrical Capacity?
Ans:- Farad
Q.77 What is the unit of Magnetic Induction
Ans:- Henry
Q.78 What is the unit of Potential Difference?
Ans:- Volt
Q.79 What is the unit of Electric resistance
Ans:- Ohm
Q.80 What is the unit of Astronomical distance
Ans:- Light year
Q.81 What is used to measure wavelength?
Ans:- Angstrom
Q.82 What is used to measure Magnetic flux?
Ans:- Weber
Q.83 What is used to measure the Intensity of Illumination?
Ans:- Lux
Q.84 What are audible sound waves?
Ans:- Frequency between 20Hz to 20000Hz
Q.85 What is the range of mercury thermometer?
Ans:- -30 degree Celsius to 350 degree Celsius
Q.86 Deice used to measure the potential difference between two points in a circuit is?
Ans:- Voltmeter
Q.87 Which unit we use to express Nuclear sizes?
Ans:- Fermi
Q.88 The 'parsec' is the unit of?
Ans:- AM
Q.89 Sound on TV is modulating?
Ans:- AM
Q.90 1 kHz signal is used to test which stage?
Ans:- 1 F stage
Q.91 Tesla is the unit of magnetic?
Ans:- Field
Q.92 The unit of noise pollution(level) is?
Ans:- Decibel
Q.93 The damage of the human body due to radiation (x-rays or y-rays etc) is measured in?
Ans:- Rads
Q.94 The SI Unit of work is?
Ans:- Joule
Q.95 the SI unit of mass is?
Ans:- Kg
Q.96 The SI unit of force is?
Ans:- Newton
Q.97 The SI unit of pressure is?
Ans:- Pascal
Q.98 A device used for measuring the depth of the sea is called?
Ans:- Fathometer
Q.99 A thermostat is a device for?
Ans:- Regulating temperature
Q.100 Atmospheric pressure is measured with a?
Ans:- Barometer
Q.101 What is measured by the sling Psychrometer?
Ans:- Humidity
Q.102 One Astronomical unit is the average distance between?
Ans:- Earth and the Sun
Q.103 A device used to convert AC into DC is called?
Ans:- Rectifier
Q.104 Which of the following devices converts electrical energy into mechanical energy?
Ans:- Electric motor
Q.105 'Farad' is the unit of?
Ans:- Capacitance
Q.106 In a 'dynamo'?
Ans:- Mechanical energy is converted into electrical energy
Q.107 Energy is measured in?
Ans:- Btu
Q.108 Noise is measured in which units?
Ans:- Decibels(dB)
Q.109 Thickness of the Ozone layer is measured in which units?
Ans:- DU(Dobson Unit)
Q.110 The equivalent of one Dobson unit is?
Ans:- 0.01 mm
Q.111 Anemometer measures?
Ans:- Wind Velocity
Q.112 Which of the following tool is used for measuring the draft of agricultural implements?
Ans:- Dynamo meter
Q.113 1 horsepower is?
Ans:- 745.7 watts
Q.114 1 calorie is equal to?
Ans:- 4.2 Joules
Q.115 1 Barrel is equalled to?
Ans:- 159 liters
Q.116 6 feet is equal to?
Ans:- 1 fathom
Q.117 A 100-watt bulb lights for 1 hour uses?
Ans:- 100 watt-hours of electricity
Q.118 -273-degree centigrade is called?
Ans:- absolute zero temperature
Q.119 Gross is equal to?
Ans:- 12 dozens
Q.120 Mach 2 means?
Ans:- 500 miles per hour
Q.121 1 nautical mile?
Ans:- 1825 meters
Q.122 Unit of crude oil?
Ans:- Barrel
Q.123 Unit of the volume of water is cusec?
Ans:- cubic/sec
Q.124 Unit of intensity is?
Ans:- Bel
Q.125 Unit of flight speed?
Ans:- Mach I
Q.126 Unit of Electric current?
Ans:- Ampere
Q.127 8 furlongs make?
Ans:- One mile
Q.128 A billion contains
Ans:- 1000 million
Q.129 One inch equals to?
Ans:- 2.5400 Cm's
Q.130 One mile is equal to
Ans:- 1,6093 km
Q.131 One micron is equal to?
Ans:- One- thousandth of a milimetre
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