measurement and units

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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What does the O and I mean on a switch

It is the IEC 5009 symbol and one of the many power buttons. That represent sleep mode or low battery state. It is also known as "the stand by button".until 2004, when it was replaced by a crescent moon. It is most confusing due to the binary numbers representation 0 and 1.

The common mean of 0 and 1 is either switch is ON or OFF.

In some cases, the button actually causes the micro to get the powered up when pressed. Which turns then some transistors to keep the power on. When we press the button to turn the device OFF, the micro-processor shut down everything including itself.

There could be more about this topic but I have only this

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SAR Value

Hello Friends, Today I am going to tell you a important topic that is what is SAR Value. The acronym SAR(Specific Absorption Rate) is an mobile radiation range system or can say it is an measure of the maximum energy absorbed by a unit of mass of exposed tissues of a person using a mobile phone. SAR value is measured in units of watt per kilogram(1.6 W/Kg).

Prevention:-

To prevent from it check your mobile SAR Value by dialing *#07#. If your mobile SAR Value below 1.6 W/Kg then don't worry . You don't need to change your smartphone. If above from it then immediately change because it is too much dangerous for yourself.

Drive Carefully

कृपया ज्यादा जल्दबाज़ी ना करें | गाड़ी को चलाने से पहले आगे पीछे देख लें 

Psychology Part-2

1. Do you know, facial symmetry is considered as a sign of beauty and attraction around the world

2. A study shows that men who feel hungry often, preferred women with higher weight.

3. A study conducted in United Kingdom found that whenever a woman finds a man attractive, she speaks with a higher pitched voice

4. Evolutionary biologists say that it's better to be average looking, as average features advertise better reproductive health and more diverse set of genes.

5. Studies show that we are more attracted to people who look similar to us.

6. Children who born to their parents in their 30's tend to find older faces more attractive than children born to their parents in their 20's.

7. If you are more attractive then there are chances that, you are less likely to suffer punishment when convicted and even lesser chances to be convicted.

8. In most of the cultures, men find that younger women are more attractive than older women. Whereas women are attracted towards older men.

9. Americans spend more money on beauty enhancements than they do on education per year.

10. Studies show that attractive people exhibit more traits and positive behaviors.

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Difference Between Li-Polymer and Lithium-ion battery

Lithium-Ion Battery:-

#.It loses actual charging capacity over time

#.High energy density

#. it has capacity to convert the battery into actual power upto 90%

#. It is more volatile as compared to polymer battery

#.It is more cheaper than polymer battery

#. It is heavy in weight as compared to polymer

#.Charging duration is long

Lithium Polymer Battery:-

                                                    #.It retains more charging than other 

                                                    #.It's energy density is low as compared to lithium ion

                                       #.It has low capacity to convert battery into actual power upto 80%

                                                   #.More safely there is less chance of explosion

                                          #.It is more expansive than lithium ion battery

                                                  #.It is light weight than others

                                                    #.comparatively charged within minimum time     

                                                              

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Demat account

 Demat Account :-

दोस्तों Demat Account का use stock marketing के लिए किया जाता हैं | इसका use ख़रीदे गए शेयर्स को जमां किया जाता हैं | Demat Account में शेयर्स खरीदने के बाद उसमे रखा जाता हैं और जब कोई हमारे शेयर्स खरीदता हैं तो वो हमारे Demat Account से निकल कर उस व्यक्ति के Demat Account में add हो जाते हैं  | Shares एक तरह से स्टॉक(Godown ) होता हैं  और जब कोई stock खरीदने वाला आता हैं तो वो उन्हें बेच देते हैं | जो लोग stocks/shares पर पैसा invest करते हैं उन्हें हम stackholders कहते हैं | हमारे भारत में साल 1996 में shares को जमा करना शुरू कर दिया था | पहले ये सब डिजिटल फॉर्म में ना होकर physically होता था मतलब documents के फॉर्म में। जिसका मतलब उन documents को संभाल कर रखना पड़ता था . जो की मुश्किल था। लेकिन technology के चलते ये सब डिजिटल हो गया हैं। और जब भी हम अपने शेयर्स को बेचना चाहते हैं या खरीदना चाहते हैं तो हमे demat account की जरूरत पड़ती हैं

और कुछ trading  apps हैं जिनके जरिये आप stocks/shares खरीद या बेच कर पैसा कमा सकते हैं
  . AngelBrocking.
  .5paisa
  .IQoption
  .OlympTrade
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  .Yahoo Finance

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