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⭐️raj vigya > ras pre science one liners by mukta rao part 3 > Flashcards

ras pre science one liners by mukta rao part 3 Flashcards

1
Q

where is the time keeping service in india operated from

A

national physical lab in new delhi

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2
Q

what is the NPK value in fertilizers

A

nitrogen
phosphorus
potassium

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3
Q

why do old papers turn brown

A

oxydation of cellulose

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4
Q

what is the procedure to make ghee with vegetable oil called and what happens to carbon bonds in it

A

hydrogenation
double bond of carbon breaks into single and adds hydrogen atoms

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5
Q

how are old paintings restored

A

cleaning with hydrogen peroxide

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6
Q

why is copper painted at the base of stainless steel utensils

A

because cu is a good conductor of heat

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7
Q

who gave the double helix model of dna

A

JD watson and creak

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8
Q

what does dna controls

A

all genetic processes and all protein production

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9
Q

what is m in m-RNA

A

messenger which helps in choosing amino acids by transmitting between nucleus and outside

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10
Q

which is DNA sugar and where is it present

A

deoxyribose present only in nucleus

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11
Q

which is rna sugar and where is it present

A

ribose sugar present in nucleus and cytoplasm

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12
Q

which fungus causes asthama

A

aspergillus fumigates

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13
Q

what is study of fungi called

A

mucology

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14
Q

which fungus causes athlete’s foot

A

tenia pedis

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15
Q

which fungi causes itching

A

acerus skebiz

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16
Q

which fungus causes baldness

A

tenia kepitis

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17
Q

which are the three components of computer

A

ALU
control unit
I/O unit

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18
Q

what are the two types of softwares

A

system and application

system software give application software a base to run

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19
Q

which is the fastest super computer

A

frontier(USA)

prev it was fugaku of japan

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20
Q

which is the fastest super computer of india

A

param siddhi

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21
Q

what is the speed of param siddhi, the fastest super computer of india

A

16 peta flops

22
Q

what is meant by peta flops

A

x10^5 floating point operations per second

23
Q

who built the super computer pratyush

A

indian institute of tropical meteorology, pune

24
Q

who built the super computer mihir

A

ministry of earth sciences, noida

25
Q

what is the super computer mihir used for

A

medium range weather forecast in ministry of earth sciences, noida

26
Q

what kind of inputs are communicated through transmitting

A

signs
signals
texts
voice
image

27
Q

examples of transmission formats through which signals are coded to transfer

A

wire
radio
optical
electromagnetic systems

28
Q

what is meant by encoding

A

converting input into a transmissible format

29
Q

what is decoding

A

converting signal into a readable format

30
Q

what is multiplexing

A

carrying multiple information in one packet

31
Q

what kinds of informations are multiplexed

A

eg FDMA, CDMA, TDMA

32
Q

what is modulation

A

imposing desired wave on a suitable wave

33
Q

who sets standards for 5G

A

ITU: international telecommunication union

34
Q

what is the full form of 3GPP

A

3rd generation partnership project

35
Q

what does 3GPP do

A

makes rules/standards for mobile telecommunication. india follows it too

36
Q

where was the first trial for 5g in india and with which companies

A

gurugram
airtel and huawei

37
Q

how many layers of parallel transmission in 5G

A

8 layers

38
Q

when was the national telecom policy

A

2018

39
Q

how does the national telecom policy aim to impact india positively

A

40 lakh employments
8% gdp target
100 billion dollars in off shore investments target

40
Q

3 submissions of national telecom policy of 2018

A

connect india
propel india
secure india

41
Q

when was TRAI act

A

1997

42
Q

who is the chairman of trai

A

pd vaghela

43
Q

what is the term for trai chairman

A

5-65

44
Q

what is the focus for the 4th industrial revolution

A

big data
ai
cloud computing
ar
automation
system integration

45
Q

what was the focus for 1st industrial revolution

A

mechanisation like stem engine or water power or agricultural machines

46
Q

what was the focus for 2nd industrial revolution

A

mass production and electrification

47
Q

what was the focus for 3rd industrial revolution

A

electronics like IT and mobile tech

48
Q

who gave the term and definition for 4th industrial revolution and when

A

klaus shwas in 2016, founder of WEF

49
Q

3 types of biodiversity

A

species
genetic
ecosystem (geographical and environmental)

50
Q

what percentage of world biodiversity is present in india

A

7-8%

⭐️raj vigya (23 decks)

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