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GK - EDS > (CAR) EDS - Randomn > Flashcards

(CAR) EDS - Randomn Flashcards

1
Q

Astronauts cannot talk to each other on the surface of the moon coz

A

Sound waves cannot travel through vaccum

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2
Q

____ is the instrument that determines specific gravity of liquids

A

Hydrometer

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3
Q

Convex lenses are used for the correction of

A

Long-sightedness

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4
Q

A transformer is used for

A

Increase or Decrease AC voltage

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5
Q

The Stones formed in Human Kidney consists mostly of

A

Calcium oxalate

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6
Q

Most of the explosions in mines occur due to the mixing og

A

Methane with Air

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7
Q

The blood glucose level is commonly expressed as

A

Milligram per decilitre

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8
Q

When a CD is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of phenomenan of

A

Reflection and Diffraction

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9
Q

Ia a U-238 nucleus splits in two identical parts, the two nuclie so produced will be

A

RadioActive

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10
Q

_____ type of radiation is absorbed by the upper layer of the atmosphere

A

Infrared

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11
Q

After long periods of use, a gray spot develops on the inside of a bulb. this is coz

A

The tungsten filament evaporates and collects here

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12
Q

Approxi, how many times each day do our heart valves open and close normally?

A

100,000 times

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13
Q

A nuclear reactor harnesses nuclear energy by?

A

Controlled chain reaction

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14
Q

_____, a raw material, is used in the manufacture of foam used in mattresses, cushions, etc

A

Phenol

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15
Q

Permanent magnet can be made from

A

Cobalt

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16
Q

Atmospheric pressure exerted on the earth is due to the

A

Gravitational Pull

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17
Q

Quantity of fresh air required for a man is

A

1000 cubic feet of air for every 20 mins

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18
Q

Oxygen comes from

A

CO2

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19
Q

_____ metal pollutes the air of a city having large number of automobiles

A

lead

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20
Q

The snow on the mountains does not melt all at once when it is heated b the sun because

A

It reflects most of the heat from the sun

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21
Q

In_____ the blood formed in the human body.

A

Bone Marrow

22
Q

the smallest of the matter is

A

Quark

23
Q

Trachoma is a disease of

A

eye. (Trachoma is an infectious disease caused by bacterium Chlamydia trachomatis. The infection causes a roughening of the inner surface of the eyelids.)

24
Q

Sodium depletion occurs in excessive sweating, and cannot be corrected by drinking water alone. when corrected it may lead to

A
  • Muscle Cramps
  • Loss of energy
  • Fatigue and Faintness
25
Q

The heart of a normal adult human being weighs about

A

300 grams

26
Q

The part of the body directly affected by pneumonia is

A

Respiratory system

27
Q

Haemoglobin in the blood is a complex protien rich in

A

Iron

28
Q

Amino Acids are a product of the digestion of

A

Proteins

29
Q

____ food provide the largest number of Kcal of energy

A

Margarine

30
Q

Avg life of a red blood cell

A

120 days

31
Q

The amount of Haemoglobin presend in blood is about ____. what % is considered as normal

A
  • 15gm per 100ml

- over 90 %

32
Q

Other name of Vitamin C

A

Ascorbic Acid

33
Q

Barometer invented by

A

Evangelista Torricelli

34
Q

Telescope invented by

A

Galileo

35
Q

Aeroplane invented by

A

The Wright brothers had invented the first successful airplane.
(On December 17, 1903, Wilbur and Orville Wright made four brief flights at Kitty Hawk with their first powered aircraft.)

36
Q

Helicopter invented by

A

Louis Charles Breguet was a French aircraft designer and builder, one of the early aviation pioneers.

37
Q

Barthélemy Thimonnier?

A

Barthélemy Thimonnier, was a French inventor, who is attributed with the invention of the first sewing machine that replicated sewing by hand

38
Q

Earth’s crust have the abundant reserves of

A

Silicon, Oxygen and Aluminium

39
Q

Pure gold is

A

24 carat

40
Q

One horse power is equal to

A

746 watts

41
Q

Dynamo is a device that converts

A

Mechanical energy into electrical energy

42
Q

Total internal reflection occurs when light travels from

A

A denser medium to a rarer medium

43
Q

Heat from the sun is recieved by the earth through

A

Radiation

44
Q

_____ element is excesively used in electronics

A

Silicon

45
Q

Which one of the following elements is extensively used in electronics

A

Acetylene and Oxygen

46
Q

Largest in the human body

A

Nerve Cell.
(A neuron (also known as a neurone or nerve cell) is a cell that carries electrical impulses. Neurons are the basic units of the nervous system and its most important part is the brain.)

47
Q

A thermostat is

A

A device used to maintain a constant temperature of a water bath or an oven

48
Q

The time interval b/w two beats of a normal human heart is

A

1 Sec

49
Q

Nitrogen is prepared in the laboratory by heating

A

the mixture of almunium chloride and sodium nitrate

50
Q

The material used for bleaching paper pulo is

A

Sodium

GK - EDS (19 decks)

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