General Science One liner (Railway RRB) Quiz

Quiz 1

Final image formed by an astronomical telescope is:
>virtual, inverted & magnified.



In SONAR, we use
Ultrasonic wave



Power of wind and speed is measured by anemometer.

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Quiz 2

Pascal as the unit for
>internal pressure of a system undergoing _expansion or contraction.

>internal stress,  
>Young's modulus,  
>tensile strength of a material




 A projectile _initial speed V at an angle θ will have the
Same range as a projectile launched with speed V at  (90 ° − θ)
Maximum range when θ = 45 °.



Who invented contact lens?
Adolf Gaston Eugen Fick




Venn diagram were invented by 
John Venn




Which physical quantity is measured in 'siemens'?
Electrical conductance 

>>Its S.I. unit is siements per metre.

Siemens per meter (Electrical conductivity)
Ohm meter (Electrical resistivity)





Who invented Helicopter?
Igor Sikorsky





Cadmium pollution is associated with ______ .
Itai-itai disease




Device used for detection and measurement of all types of radiation (alpha, beta and gamma)
Geiger counter





Energy can neither be created nor destroyed.
>first law of thermodynamics




work done (or Energy required)= potential difference × charge 

 potential difference= (work done/Charge)





Oxidation reaction
>addition of electronegative element
>addition of an oxygen molecule

>Loss of electron
>removal of hydrogen molecule.






Motor vehicle emissions 
NOx 
Ozone
Particulate matter (PM10 and PM2.5) 

Carbon monoxide
Carbon dioxide

Volatile organic compounds
Water vapor. 


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Quiz 3

*The glowing surface of the Sun is called ___.
photosphere

>Atmosphere of sun is composed of several layers mainly
photospherechromosphere and corona


>Lowest layer of  sun's atmosphere is photosphere._ This layer is where the sun's energy is released as light. _It is the visible "surface" of the Sun _Hence refer as the glowing surface of Sun.





Mangroves are plants have
Respiratory roots





Electroscope_ detect presence of electric charge on a body.

William Gilbert




**Making of dyes_Chemical compound used.
Potassium Carbonate (K2CO3)

#Potassium Carbonate_ making glass, dyes, and some soaps. 

>Potassium Bromide_ photography. 

>Potassium chloride & Potassium sulfate ~ fertilizer.






Plank’s constant has the dimensions of
angular momentum

SI unit_  joule-seconds or (N⋅m⋅s) or (kg⋅m2⋅s−1).






Octopus belongs to the phylum
Mollusca

>bilaterally symmetrical
>Octopus are soft bodied, eight armed invertebrates found in coral reefs, pelagic waters or sea beds.




Full form of PVC

polyvinyl chloride.

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Quiz 4
Father of Email
Raymond Tomlinson



Input device
MICR {Magnetic Ink Character Recognition}

OMR{Optical mark recognition}

Barcode Reader


Plotter is not an input device rather it is an output device




**first Super Computer of the world?
CDC6600



*India's first supercomputer
PARAM 8000



Scientific name
Giant panda_ Ailuropoda melanoleuca (IUCN Red List)

Blue whale_ Balaenoptera musculus 

Mouse_ Mus musculus

Lion_    Panthera leo

>IUCN_International Union for Conservation of Nature





father of periodic table?
Dmitri Mendeleev



BIOS_ Basic Input Output System



Polygraph
lie detector




E. Goldstein
discoverer of anode rays _sometimes credited with discovery of proton.



In MICR, what does 'I' stands for?
Ink

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Quiz 5

Chemical element with lowest melting point _ Helium
Element with highest melting point _ Carbon

>Metal with lowest melting point_ mercury.

>Fluorine has a low melting point and boiling point, the lowest of the halogens.





Nerve cells are longest cells of human body.
>signals between neurons occur via specialized connections called synapses.





Bio-fertilizers convert nitrogen to ______ 
ammonia

>Nitrogen fixation _Nitrogen in air is converted into ammonia (NH3)

>Atmospheric nitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds.

>Nitrogen fixation is carried out naturally in the soil by nitrogen-fixing bacteria such as Azotobacter.






Urea (NH2)2CO_ comes from breakdown of proteins.
>source of Nitrogen in urine.

>Urea is a readily available source of Nitrogen so is used as a fertilizer.





Xylem/Sapwood 

Phloem/Inner Bark 

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14 July, 2019


1. Dodo is a bird categorized under _____.
 extinct 



2. Which is not a word processor?
Microsoft Excel 



**3. Stomatal opening is based on
Endosmosis



__________________________

>According to the K+ ion theory ~Guard cells absorb k+ ions from the cells around them as they produce ATP (due to photosynthesis) and become hyper-tonic.

This leads to absorption of water from nearby cells by endosmosis due to which the guard cell become turgid and the stomata opens. 


>Decreasing light intensity and photosynthesis causes stomata closing.

__________________________

# Three types of solutions based on solute concentration: isotonic, hypotonic, and hypertonic.

# The three types of osmotic conditions that affect living cells are called hypertonic, hypotonic, and isotonic states. 


{Difference Between Stomata of Monocot and Dicot Plants~ Guard cells of the monocots are dumbbell-shaped >>guard cells of dicot plants are bean-shaped.}

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4. Where does Amoeba digests its food?
 Food vacuole.




*5. Who invented 'chronometer'?
John Harrison 



6. connective tissue
>Areolar connective tissue
>Adipose Tissue
>Fibrous connective tissue
>Blood
>Osseous tissue (Bone tissue)

>Hyaline cartilage

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General Science One liner (Railway RRB) Quiz General Science One liner (Railway RRB) Quiz Reviewed by Admin on July 18, 2019 Rating: 5

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