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Most Important Questions of General Science / Every Day Science
Which is the outermost planet in the solar system?
- Neptune
The SI unit of charge is?
- Coulomb
Wavelength of very High Frequency (VHF) IS ?
- shorter
Long-sight defect could be corrected by using _____ lens?
- vonvex
For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will _________?
- Increase
The lifespan of Red Blood Cells is __________ days?
- 20
The density of water is __________?
- 1 g/cm3
Radioactivity was discovered by __________?
- Bacquerel
The Sun is a __________?
- Star
The average adult has a blood volume of about __________ liters?
- 5
The most abundant element in the universe is __________?
- Hydrogen
The most abundant element in the Earth’s crust is ______?
- Oxygen
Each day human body breathe in ____ liters of air ?
- 15,000 to 20,000
The SI unit of “pressure” is _________?
- pascal
The most densest substance on the Earth is ________?
- Osmium
A camera uses a __________ to form an image?
- convex lens
CNG stands for?
- Compressed Natural Gas
Which from the following is true for “Sound”?
- Sound cannot travel through a vaccum
When white light is passed through a prism, it splits into _______ colours?
- 6
Instrument used for measuring very high temperature is __________.?
- Pyrometer
Sound waves are _________ waves?
- Longitudinal
The lifespan of White Blood Cells is __________ day(s)?
- 1
The fluid part of blood is known as __________?
- plasma
X-rays were discovered by __________?
- Rontgen
The speed of light is __________?
- 300,000 km/s
In a very low temperature which from the following will freeze at last?
- Sea water
The nearest planet to the Earth is _________?
- Venus.
The planet that moves round the Sun at the highest speed is?
- Mercury
In general, Comets have __________ orbits?
- Highly elliptical
Oxidation is a chemical reaction involving the __________?
- Loss of Electrons
Urine is produced in __________?
- Kidneys
Blood is cleaned by __________?
- Kidneys
The planet which is easily visible from the Earth is?
- Venus
According to the Big Bang Theory, the Universe began about __________ billion years ago?
- 10 – 20
The biosensor is used to measure?
- Blood glucose level
Einstein’s famous equation which states that mass and energy are interchangeable is?
- E = mc2
The SI unit of electric current is?
- Ampere
For proper formation of teeth, __________ is essential.?
- Fluorine
The Carbon Dioxide in the atmosphere, by volume, is?
- 03%
Diamond is an allotropic form of?
- Carbon
The SI unit of Heat is?
- Joule
The gas, commonly known as “laughing gas”, is?
- Nitrous Oxide
The energy value of food is measured in?
- Joule
Water covers __________ of the Earth’s surface?
- 70%
The fourth state of matter is?
- Plasma
The device used to convert Alternate Current into Direct Current is called?
- Rectifier
The number of oscillations per second is called?
- Frequency
Sound waves from a loudspeaker are caused by?
- Vibrations
There are __________ methods of heat transfer?
- 3
The unit used to measure ‘magnetic flux’ is?
- Weber
The battery was invented by?
- Volta
The nearest planet to the Sun is?
- Venus
Bronze is an alloy of?
- Copper, Tin
Neutrons were discovered by?
- James Chadwick
Nucleus was discovered by?
- Rutherford
Energy can be converted from one form to another, but all energy ends up as?
- Heat energy
A battery converts ________ into electrical energy?
- Chemical energy
Current is the flow of?
- Electrons
Electrons were discovered by?
- Thomson
Between the melting point and boiling point of a substance, the substance is a?
- Liquid
The interior structure of the Earth is divided into ________ layers?
- 5
We live on the Earth’s?
- Crust
The thickest layer of the Earth is?
- Mantle
The Earth’s crust ranges from ________ km in depth.?
- 5-70
The anode is the electrode connected to the ________ terminal of a battery?
- Positive
1 tonne = ________ kg?
- 1000
The normal temperature of the body is?
- 4 degree
Weakest bone is?
- clavicle bone
Hardest bone is?
- collar bone
The hardest part of the body is?
- tooth
Most abundant element in the human body is carbon?
- Oxygen or calcium
Systole is heart?
- contraction
Eye is filled with ________ liquids?
- two
The femur is the longest?
- bone
Head or skull has?
- 29 bones
Total bones are?
- 206
Universal donor group is___?
- –O group
Life span of red blood cells is?
- 120 days.
The Black Mamba is the fastest?
- Snake
New Zealand is close to Int?
- Date Line.
Temperature at earth’s core is?
- 2000 deg: C
Sun is 400 times larger than the?
- Moon
When are you most likely to see a penumbra?
- During an Eclipse.
A wind which reverses seasonally is?
- Wind
Oceans are on average?
- 4 km deep.
Which electromagnetic wave has the shortest wavelength?
- Gamma rays
All electromagnetic waves have the same?
- Speed in vacuum
. The reflection of sound is called?
- Echo
An instrument used to measure electric current is called?
- Ammeter
The SI unit of thermodynamic temperature is?
- Kelvin
The shortest distance between crest to crest is called?
- Wavelength
The speed of sound is fastest in?
- Gasses
The branch of science which study the interaction between matter and radian energy is called?
- Spectroscopy
The horizontal rows of the periodic table are called?
- Periods
The vertical columns of the periodic table are called?
- Groups
Which metallic element is liquid at room temperature?
- Mercury
Which non-metallic element is liquid at room temperature?
- Bromine
Battery charger converts electrical energy into ___energy?
- Chemical
A loudspeaker changes ________ energy into sound energy?
- Electrical.
The strongest part(s) of a magnet is/are?
- North and south pole
When gas is ionized, ________ forms. ?
- Plasma
Wind is caused by?
- Difference in atmospheric pressure
Wind speed is measured by?
- Anemometer
The fact that universe is expanding was discovered by?
- Hubble
X-rays were discovered by?
- Roentgen
The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to?
- Einstein
The symbol of gold is?
- Au
Plaster of Paris is produced by heating?
- Gypsum
Which from the following is NOT true about Helium gas?
- Toxic
Which is the largest excretory organ of the body?
- skin
The brain is enclosed in a bony case called?
- cranium
Which is the bone that is present in forelimb?
- radius
Which one is herbivore?
- cow
Which structure helps in transport of water in plants ?
- xylem
The organisms that can make their own food are called ?
- producers
Bacteria are ?
- prokaryotes
Bile juice is secreted by?
- gall bladder
DNA structure was first described by?
- Watson and Crick
Pollination is best defined as the transfer of pollen from an anther to?
- stigma
Movement of the cell against concentration gradient is called ?
- active transport.
One of the following is not a function of bones protein ?
- synthesis
Plants absorb most part of water needed by them through their ?
- root hairs
Highly intelligent mammals are ?
- dolphin
Process of cell division take place by ____?
- mitosis
Pulses are a good source of ?
- proteins
Plants that grow in dry habitat are called ?
- xerophytes
The simplest amino acid is ?
- glycine
Accumulation of lipid molecules in brain cells lead to ?
- mental retardation
The life and activities of a cell is controlled by?
- nucleus
Flagella are composed of ?
- microtubules
Tobacco mosaic virus was crystallized by ?
- Stanely
Non-enveloped naked viruses are known as ?
- virions
Gram +ve bacteria on treatment with crystal violet dye give colour?
- purple
Malarial parasite is injected into man as ?
- sporozoites
The terms procariotique and eucariotique were proposed by ?
- Chatton
The most common type of asexual reproduction in the fungi is?
- spore production
Outside the thallus of Marchantia there are special structures called ?
- rhizoids
The vascular plants are termed as?
- tracheophytes
In human beings influenza is caused by?
- virus
In many which phylum the body of organisms is usually divided in?
- three regions
called head, thorax, and abdomen?
- arthropods
Amoeba moves in water with the help of locomotory organs called ?
- pseudopodia
In all coelenterates, endoderm give rise to?
- digestive system
Higher vascular plants are also called ?
- seed plants
The plants which produce embryo but lack vascular tissues and seeds are placed in ?
- bryophytes
Which bone is called beauty bone in women ?
- clavicle
Detachment of myosin head and actin in rigor mortis occurs due to ?
- autolysis in body
Release of the ovum from the ovary is called?
- ovulation
The foetus is protected from the mechanical damage by the?
- amniotic fluid
Rich source of energy in seimen is?
- glucose
Sickle cell anemia was discovered by ?
- Vernon Ingram
Kangaroo has an abdominal pouch known as ?
- marsupial
The utilization of the products of digestion is called?
- assimilation
Parabronchi are present in ?
- birds
The respiratory problem most common in smokers is?
- emphysema
Water potential of pure water is?
- zero
Bean-shaped cells in plants are ?
- guard cells
The normal pH of human blood is ?
- 4
Shrinkage of protoplast due to exosmosis of water is?
- plasmolysis
Atherosclerosis is a major condition leading to?
- heart attack
Villi and microvilli increase ?
- absorption
Splitting of glucose relates to?
- glycolysis
Reptiles hibernate during?
- winter
Which of the following plants are called arthrophytes?
- sphenopsids
Radio carbon dating is used to find the age of?
- Fossils
Seismology is the science of ?
- Earthquakes
The source of solar energy is ?
- Nuclear energy
fan object is placed midway between two parallel plane mirrors facing each other, then the number of images that appear in mirrors is?
- Infinite
In a vacuum , What will be common among X rays visible light, radio waves ?
- Amplitude
Barometer is used to measure?
- Atmospheric pressure
If u use a microscope to watch smoke particles in still air, you will see them moving about all the time. This phenomenon is called?
- Brownian movement
The mass of a neutron is approximate?
- Equal to the mass of a proton
The spherical shape of raindrops is due to ?
- Atmospheric friction of air
Galvanometer is an instrument For measuring currents of small?
- magnitude
Which of the following has highest frequency?
- Gamma rays
Most important effect of moon on earth is that?
- Gives light
The term ” Meteor” is applied to an interplanetary body, After it enters the earth?
- atmosphere
Newton`s rings are Coloured rings observed around the point of contact of a ?
- convex lens
The heat received by earth from the sun is known as?
- Solar radiation
Constellation is Configuration of fixed stars?
- resembling a figure
Which of the following part of the atmosphere is nearest to the earth?
- Troposphere
To an astronaut in space sky looks ?
- Black
Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by ?
- Convection
A time can come when we will be able to design a machine which can go on working for ever without the expenditure of energy. Is it possible ?
- No
Light year is a unit of ?
- Distance
Three elements needed for the healthy growth of plants are ?
- N, P, K
Copper can be converted into gold by ?
- Artificial Radioactivity
In winter an iron pipe feel colder than a wooden window, This is because wood is?
- non-Conductor
The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ?
- 56fft
It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the?
- pitch
When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because the light is?
- Visible
A six feet tall lady wants to see her full image in a plane mirror. The minimum length of the mirror will be?
- 3 feet
The principle used in radar is the same as that of Sonar. In radar we use radio waves whereas in sonar we use?
- Ultrasonic
a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?
- Fusion nuclear reaction
Parsec is a unit of ?
- Distance
German Silver is an alloy of ?
- Cu + Ni
The Continent Antarctica lies at the?
- South pole
The temperature of the dead body is?
- the temperature of the place where it is kept
Lactometer is a type of Hydrometer which is used to measure the specific gravity of ?
- Milk
The deepest place on earth is ?
- Mariana Trench
Twinkling of stars is caused by ?
- refraction of light
Magnifying power of a simple microscope can be increased by ?
- the increasing focal length of the lens
What is the approxiate mean distance that separates the sun from the earth?
- 1480,00,000 km
The outer surface of the sun is called ?
- Photosphere
Which planet has the maximum number of satellites?
- Jupiter
What is a light year?
- The distance traveled by light in 1 year.
What are asteroids?
- Very small planet revolving around the sun
What is the temperature at the center of the sun?
- 20 million k
The phase of the moon are partially the result of the?
- Revolution of the moon about the earth
Constellations referred to as Zodiac are ?
- Imaginary region that encompasses the path of the planets
The height of a geostationary satellite from the surface of the earth is about ?
- 3600 km
What are the three basic units of measurement for the metric system?
- Metre, liter and gram
Clocks, which moves with the velocities comparable with the velocity of light, run?
- with zero velocity
When a gas turns into a liquid, the process is called?
- condensation
Electric current is measured by ?
- Ammeter
Dim-vision in the evening and night results from the deficiency of which one of the following?
- Vitamin A
Diffusion of light in the atmosphere takes place due to ?
- Dust particles
Dental caries are due to ?
- Bacterial infection
The process of digestion begins in?
- mouth
The planet nearest to sun is ?
- Mercury
Blood cells are manufactured by _________of the body?
- bone marrow
If an object gives off its own light, it is said to be?
- luminous
An electric heater would be most likely to produce?
- R Radiations
The Kelvin scale of temperature is called the?
- absolute scale.
The type of radiation that is unaffected by the magnetic field is called?
- Gamma Rays.
In a normal resting man, the rate of heart beat is?
- 72 per minute.
The brightest planet is ?
- Venus.
Gas in children‘s play-balloons going upward is?
- hydrogen.
A study of the chemical composition of the earth‘s crust is called?
- Geology
In a heat engine heat energy is changed into ?
- Mechanical Energy
Frequency of audible sound is ?
- 20-20KHz.
Cheapest source of producing electricity is?
- Wind and Solar
The smallest unit of measurement of wavelength is?
- nanometers(10^-9 m)
Unit of electricity ―?
- Kilowatt Hour
Excessive burning of fossil fuels causes?
- acid rains.
Newton is the unit of ?
- Force
Richter scale measures the severity of?
- Earthquake
Planet Mars has two?
- Moon
Our eye is very sensitive to?
- blue light
Astronomers cannot be nominated for the?
- Noble Prize.
Modern Bicycle was invented?
- by Staley.
Coulomb is the unit of?
- Electric Charge.
The fat content in buffalo milk is?
- 10%
The major component of honey is?
- Glucose.
Severe deficiency of Vitamin D results in?
- rickets
Digestion of food is completed in the?
- small intestine
Wind energy is the _____energy?
- Kinetic
One of the countries through which equator passes is____?
- Kenya
A person with the following blood group are considered to be a universal recipient?
- AB+
The name of the common mineral salt present in sweat is?
- Sodium Chloride
Role of biotechnology in the production of food based on_____?
- Fermentation
The hygrometer is used for measuring the?
- Humidity of air
The chemical name of vinegar is?
- Dilute acetic acid
The orbital period of the planet Mercury around the sun is?
- 88 days
Television signals are converted into light signals by?
- Photodiode
The number of spark plugs needed in a diesel engine is?
- 0
The half-life of a radioactive element is 8-days. How long it takes to reduce it from 10 mg to 5 mg?
- 8 days
In humans, most nutrient molecules are absorbed by the?
- stomach
Sedimentary rocks are?
- Porous
Oasis is associated with?
- Desert
The Continent Antarctica lies at the__________?
- South pole
When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because light is_________?
- Visible
The temperature of the dead body is_______________?
- Temperature of the place where it is kept
A six feet tall lady wants to see her full image in a plane mirror. The minimum length of the mirror will be?
- 3feet
The principle used in radar is the same as that of Sonar. In radar, we use radio waves; whereas in sonar we use?
- Ultrasonic
The deepest place on earth is____________?
- Mariana Trench
A body can escape the gravitational pull of the earth if it is thrown up with a velocity of?
- 7 miles per sec
Night vision is possible with the help of___________?
- Infrared Rays
Tibia is a bone found in the____________?
- Leg
What is the main component of bones and teeth?
- Calcium phosphate
Which gland in the human body is called the master gland?
- Pituitary
The main constituent of hemoglobinis___________?
- Iron
Which is the largest organ in the human body?
- Skin
Medulla oblongata is a part of human ___________?
- Brain
Water has maximum density at____________?
- 4°C
The theory of Expanding Universe was first propounded by______?
- Hubble
The biggest species of the cat family is___________?
- Tiger
Which group of animals hasheterogametic females?
- Domestic fowl
Who proposed this concept “All motion is relative”?
- Albert Einstein
Which month of the calendar year can lack a new moon?
- February
The sunlight can reach a depth of___________meters in the ocean?
- 100
Geiger-Muller counter is used to detect__________?
- Protons
The autonomic nervous system innervate all of these except?
- Skeletal muscles
Vacuum tubes have been replaced by__________?
- Transistors
The number of electrons of a neutral atom is automatically known if one knows the?
- Atomic number
_________ is anything that takes up space and has mass.?
- Matter
What are considered the building blocks of matter?
- Atoms
The protons and neutrons are found in the center of the atom, which is called the ___of the atom?
- Nucleus
The speed of light is __________?
- 300,000 km/s
The term ‘Computer’ is derived from__________?
- Latin
Who is the father of Computer?
- Charles Babbage
Who is the father of the Internet?
- Vint Cerf
If a computer has more than one processor then it is known as__________?
- Multiprocessor
The brain of any computer system is___________?
- CPU
The computer that process both analog and digital is called_____?
- Hybrid computer
ALU is____________?
- Arithmetic Logic Unit
RAM Stands for _____?
- Random Access Memory
Software is ______?
- Untouchable Part
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