General Science
Most Repeated MCQs
1.
The largest circular storm in our solar system (The Great Red Spot) is on the
surface of Jupiter.
2.
The rapidly moving stream of charged particles that is being driven away from
the sun is known as Solar Wind.
3.
At a height of 25km, Olympus Mons on Mars is the largest volcano in the Solar
System and is nearly three times as tallest Mount Everest
4.
The energy generated in the core of the sun takes about one million years to
reach the surface of the sun.
5.
Sunspot cycle is 11 years,
6.
The Andromeda galaxy is a type of Spiral Galaxy.
7.
Andromeda galaxy is about 100,000 light years across.
8.
Apollo 13 lunar landing was cancelled after an oxygen tank exploded.
9.
Foucaull pendulum is the device which first proved that Earth rotates on its
axis.
10.
Soviet cosmonaut Valentina Tereshkova becanie the first woman to.fly to space
when she launched on the Vostok 6 mission June 16, 1963. Valentina Tereshkova
was the first woman to go into space. In 1963, she spent almost three days in
space and orbited Earth 48 times in her space capsule, Vostok 6.
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11.
On 12 April 1961, Russian cosmonaut Yuri Gagarin became the first human to
travel into space.
12.
Apollo 11 blasted off on July 16, 1969. Neil Armstrong, Edwin "Buzz" Aldrin
and Michael Collins were the astronauts on Apollo 11. Four days later,
Armstrong and Aldrin landed on the moon. They landed on the moon in the Lunar
Module Eagle on July 20, 1969.
13.
Only one planet in the solar system i.e. Venus has a day which lasts longer
than its year.
14.
Charon (pron: Kar-en) is the moon of Pluto.
15.
Vostok 1 was the first manned spacecraft.
16.
Triton, Neptune's moon, has an ocean of liquid nitrogen.
17.
Carbon dioxide is the main component of the atmosphere of the mars.
18.
Summer solstice usually occur on June 21.
19.
Venus and Mercury are moonless planets,
20.
A major component of the interstellar media consists of charged particles which
have speeds close to that of light. These charged particles are called Cosmic
Rays.
21.
Refracting Telescopes contain Lenses
22.
Reflecting Telescopes contain Mirrors
23.
Reflecting Telescopes are also called Catoptric Telescopes (from Greek
katoptron "mirror").
24.
A comet's tail always points away from the sun.
25.
Spectral line splitting due to the influence of magnetic fields is called
Zeeman Effect.
26.
Saturn and Jupiter rotate faster than the earth
27.
Copernicus wrote the book 'On the revolutions of the heavenly spheres.
28.
Syzyby (pron: siz-a-je) is the configuration when three celestial bodies are in
a liner
29.
The Baily's beads effect, or diamond ring effect, is a feature of total and
annular solar eclipses. As the Moon covers the Sun during a solar eclipse, the
rugged topography of the lunar limb allows beads of Sunlight to shine through
in some places while not in others.
30.
The Magellanic Clouds are irregular galaxies.
31.
The study of the origin and evolution of the universe is known as Cosmology
32.
According to Kepler's Laws, all orbits of the planets are Ellipses
33.
lo, Europa, Ganymede and Callisto are moons of Jupitern
34.
Copernicus first hypothesized that the earth orbits around the sun.
35.
The last manned moon flight was made in 1972.
36.
The cosmic microwave background radiation, a remnant of the Big Bang, is at
2.7K temperature.
37.
Heliopause is the outer boundary of sun's magnetic field.
38.
Phobos and Deimos are the moons of Mars
39.
On Venus sun rises in the west.
40.
The period from one full moon to the next is 29.5 days.
41.
Albedo refers to the amount of light the planet reflects.
42.
Galileo discovered that Venus has phases like the moon.
43.
Kepler's 1st law states that all planets orbit the sun in elliptical orbits.
44.
Sunspots are cooler than the region around it.
45.
A Pulsar is actually a Neutron Star.
46.
The Ring Nebula is the expanding ring of gas released from a dying star,
47.
A black hole with the mass of the earth would be the size of a marble or a
peanut.
48.
Twelve people have ever set foot on the moon.
49.
There have been six manned moon landings.
50.
Mercury and Venus are never visible at midnight
51.
Obler's Paradox states that the sky should be ablaze with starlight if the
universe if infinite in extent and uniformly filled with stars.
52.
On one of the moon landings astronauts left a mirror on the surface of the
moon. Scientists periodically bounce a laser beam off of this object to measure
the distance between the earth and the noon.
53.
The only supernova explosion in modern times visible in the sky to the naked
eye became visible in 1987 (it is called 1987w).
54.
The term "Parsec", a unit of measure of interstellar distance, is a
contraction of two words Parallax second.
55.
Retrograde is the motion when a planet seems to be moving westward in the sky.
56.
Total lunar eclipse can occur only in Full Moon.
57.
A beam of light can travel about 7.5 times around the earth in one second.
58.
Solar wind causes the gas tail of a comet to always point away from the sun.
59.
The dynamo effect causes a planet to have a magnetic field.
60.
Polaris is also called Northern Star.
61.
The Andromeda Galaxy is the most distant object in the sky that the human eye
can see without optical instrument.
62.
Climate variations on the scale of hundreds of years may be caused by changes
in ocean current.
63.
Earth's early greenhouse climate resulted in a climate much like that of Venus
today.
64.
Hydrosphere refers to the oceans, seas, rivers, fresh water and underground
water.
65.
Water vapors, Methane, Nitrous Oxide, carbon dioxide, ozone,
chlorofluorocarbons and hydro fluorocarbons include in the category of
greenhouse gases.
66.
Greenhouse gases are those gases that absorb and emit infrared radiation in the
wavelength range emitted by earth.
67.
Conduction is the type of energy transfer which occurs between two substances
in direct physical contact.
68.
Nitrogen and oxygen make up 99% of earth's atmosphere.
69.
Water vapor is the most abundant greenhouse gas in earth's atmosphere.
70.
Halocarbons are the greenhouse gas which is produced only through human
activity and no other sources.
71.
Energy is transferred from sun to earth via radiation.
72.
The greenhouse effect is caused by greenhouse gases in the lower atmosphere
absorbing radiation from the earth's surface, and preventing much of it
escaping into space.
74.
Kyoto protocol entered into force in 2005.
75.
A satellite remains in orbit because the centrifugal force caused by its
revolution around the earth is counterbalanced by earth's gravitational pull.
76.
Russian equivalent of GPS iS GLONASS.
77.
GLONASS stands for Global Navigation Satellite System.
78.
US Air force built and operates GPS.
79.
A map maker is called a cartographer.
80.
Mass of an electron is 9.11 X 10-32 kg
81.
Rutherford suggested that most the mass of an atom is concentrated in its
nucleus.
82.
Chadwick got the Nobel Prize for the discovery of Neutrons.
83.
When the resultant of all the forces acting on a body is zero the body is said
to be in a state of equilibrium.
84.
The separation of light into its constituent colors is called Dispersion.
85.
If a body weighs 600 kg on the surface of the earth then the weight of the same
body on the surface of the moon will be 1/6th i.e. 100 kg.
86.
When a bullet penetrates into a target, the kinetic energy of a bullet is
converted into mechanical energy
87.
The process of digestion begins in mouth.
88.
Sometimes when white blood corpuscles greatly increase in number, they cause a
disease called Leukemia.
89.
The principle of wireless telegraphy was discovered by Signor Marconi.
90.
Blood cells are manufacture by bone marrow in the body.
91.
Transistors do not need a warm up period because they do not have filaments.
92.
An electric heater would be most likely to produce I.R radiations.
93.
The kelvin scale of the temperature is called the absolute scale.
94.
The type of radioactive rays that is unaffected by magnetic field is called
Gamma Rays.
95.
If we know the mass of and object and the force applied on it, it is possible
to calculate acceleration of the object.
96.
Diseases that spread through air are called airborne diseases.
97.
Due to deficiency of iron in the body, the quantity of hemoglobin in cell
decreases.
98.
The science and study of old age is called Gerontology.
99.
The instrument used for measuring the velocity of winds is called Anemometer.
100.
The function of the thermostat in the refrigerator is to control Temperature.
101.
Blotting paper absorbs ink because of capillary action,
102.
Mirage is an example of Refraction of lighty
103.
The age of a tree can be determined by counting rings of stem.
104.
In Pakistan copper is found in Saindak.
105.
American Space shuttle Mercury Atlas-6 is the first winged space ship to orbit
and return to airport landing
106.
Myopia is a defect of vision which does not permit to see clearly the distant
objects.
107.
Ibn e Baitar was a renowned Muslim Botanist.
108.
Cellulose is a natural polymer,
109.
Vitamin A & D are not water soluble.
110.
Solar eclipse occurs in full moon,
111.
Quartz is chemically a Silicate or Silicon dioxide.
112.
Chicken egg is composed of one cell.
113.
Visible light has the wave length of 400-700 nm.
114.
The particle with positive charge but having mass equal to that of electron is
called positron.
115.
Gas in children's play-balloons going upward is hydrogen or helium.
116.
Standard Atmospheric pressure is 760 mm-Hg.
117.
Iron corrodes due to formation of iron dioxide
118.
Starch is a polymer of Glucose.
119.
Ruby is an oxide of Aluminum.
120.
In the Australian continent nights are larger than days in June.
121.
Chromite ore contains Chromium Oxide.
122.
Mica is a non-conductor of electricity.
123.
Calcium and phosphorus are essential elements of bones.
124.
Proteins are formed by combination of amino acids.
125.
A branch of medicine studying blood and its disorders is called Hematology
126.
In a heat engine heat energy is changed into mechanical energy.
127.
Frequency of audible sound is 20-20,000 Hz)
128.
Deficiency of vitamin B causes Beriberi.
129.
The smallest unit of measurement of wave-length is Angstrom
130
The chemical generally used in refrigerators is Freon
131.
The unit TON to specify air conditioners is equivalent to 12,000 BTU/hour.
132
The unity of electricity Kilowatt Hour is the unit of Power
133.
Period of famous Muslim scientist is 7th to 13" Century A.D.
134.
Reserve food material is usually stored as Starch in plants and Glycogen in
animals
135.
Spinach is a good source of vitamin K.
136.
Insulin is a hormone secreted by pancreas.
137.
Femur is the longest and strongest bone of human body.
138.
The moon has no atmosphere.
139.
Excessive burning of the fossil fuels causes acid rains.
140.
21st of June is the longest day of the year in the northern
hemisphere.
141.
Newton is the unit of Force.
142.
AIDS is caused by Human Immunodeficiency Virus (HIV).
143.
Chemical name of Gypsum is Calcium Sulphates.
144.
Richter scale measures the severity of earthquakes.
145.
pH of blood is 7.3-7.4
146.
Purest form of iron is wrought Iron.
147.
Cod Liver Oil contains vitamin D.
148.
Aorta is the organ of circulatory system.
149.
Bauxite is an ore of Aluminum.
150
Circular aperture which appears as a dark spot in the eyes is called pupil.
151.
Ideally water can be used as a car fuel after electrolysis.
152.
Our eye is very sensitive to blue light.
153.
The disease Hemophilia is caused by the deficiency of Vitamin K.
154.
Astronomers cannot be nominated for the Nobel Prize.
155.
A sheet of muscles called Diaphragm separates the chest from the abdomen.
156.
In human body blood clotting factor is produced by the platelets.
157.
Anvil and stirrup are the names of bones present in human ear.
158.
Stirrup (or stapes) is the smallest bone in human body.
159.
The front of the eye is covered with a tough transparent material called
Cornea.
160.
The young plant inside a grain of wheat is called Embryo.
162.
Cartilage is a connective tissue,
163.
Tendon is a muscle which attaches to a bone
164.
Dendrites are parts of neurons,
165.
In an animal cell proteins are formed in ribosomes,
166.
Chemically finger nails are made up of proteins,
167.
Generators convert mechanical energy into chemical energy
168.
Equinox is the time when the sun appears vertically overhead at noon at the
equator.
169.
The first computer virus for MS-DOS, called Brain Virus was invented by two
Pakistani brothers from Lahore, Basit Farooq Alvi and Amjad Farooq Alv in 1926
170.
Eggshell is composed of calcium carbonate,
171.
The main constituent of biogas is methane,
172.
Glass is called Silica,
173,
Geysers are hot springs that erupt hot waters and steam from time to time
174.
Ability of the air to absorb long heat waves from the earth after allowing the
short waves from sun to pass through it is known as Green House Effect.
175.
Computer works on the principle introduced by the Muslim Scientist Musa
al-Khwarizmi.
176.
Milky Way galaxy is shaped like a large thick concave lens with a large central
bulge.
177.
Sphalerite is an ore of zinc.
178.
Cinnabar is an ore of mercury.
179.
Jabir Bin Hayan prepared Sulphuric Acid,
180.
Pitch of man's voice is lesser than that of a woman,
181.
Mercury is heavier than lead,
182.
Aqua Regia is a mixture which can dissolve platinum,
183.
Blue flame is hotter than red flame.
184,
Oil rises in a wick of oil lamp because of capillary action,
185.
Sea divers use a mixture of gases for breathing during diving. The mixture is
80% He and 20% 02
186.
The energy possessed by water in dam is potential energy.
187.
The metal known as quick silver is Mercury.
188.
To stay in the sunlight while circling the globe at the equator, one has to
move with a speed of 1670 km/h to westward direction.
189.
The measurement of rainfall is made by Rain Gauge.
190.
Poplar is a woody raw material which is used for the manufacture of paper pulp.
191.
Wheat Bridge is the name of an electrical circuit.
192.
Mercury metal is 13.5 times heavier than water,
193.
Gold and silver are known as Coinage metals.
194.
The farthest individual star ever seen is Icarus which is 9 billion light-years
from our Solar
System.
195.
The most distant galaxy ever is Gn-Z11 which is 13.4 billion light-years away-
just 400 million years after Big Bang.
196.
Geodesic is the shortest (or longest) path between two points.
197.
Grand Unified Theory (GUT) is a theory that unifies the electromagnetic, strong
and weak
forces.
198.
Light second is the distance that light travels in a second,
199.
Radar is a system using pulsed radio waves to detect the position of objects by
measuring the time a single pulse takes to reach the object and be reflected
back.
200.
Wavelength is the distance between two adjacent troughs or two adjacent crests
in a wave.
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