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Important Solved MCQs of Everyday Science for PPSC 

Important Solved MCQs of Everyday Science for PPSC

1) One of the countries through which equator passes is:

(a) Kenya__ #Answere
(b) Malaysia
(c) Malta
(d) Pakistan

2) Copper can be converted into gold by:

(a) Artificial radioactivity_ #Answere
(b) heating
(c) Electroplating
(d) Chemical reaction

3) The three elements needed for healthy growth of plants are:

(a) N, P, K_ #Answere
(b) N, C, P
(c) N, K,
(d) N, S, P

4) Clocks, which moves with the velocities compareable with the velocity of light, run:

(a) fast
(b) slow
(c) equal to the velocity of light
(d) with zero velocity_ #Answere

5) Max Planck received the noble prize in Physics in 1918 for his discovery of:

(a) electron
(b) energy quanta_ #Answere
(c) photon
(d) positron

6) Bronze medal is made up of metals:

(a) (copper,nickel)
(b) (copper, tin)_ #Answere
(c) (copper, silver)
(d) (copper, zinc)

7) Addison’s disease is caused by the excessive secretion of:

(a) Antiduretic Harmone
(b) Luteinising Harmone
(c) Melanophore stimulating Harmone
(d) Adrenocorticotropic Harmone_ #Answere

8) Development of calf muscles in ladies who wear high heels is a common example of:

(a) Natural Selection
(b) inheritance of acquired character_ #Answere
(c) Use and disuse of organ
(d) Artificial selection

9) Margalla Hill is a branch of:

(a) Karakorum range_ #Answere
(b) Hindukash range
(c) Himalaya range
(d) Nanga Parbat range

10) Humming bird belongs to a category called:

(a) Ectotherm
(b) Endotherm_ #Answere

(2) Radioactive isotope of Uranium used in Nuclear Bomb is:

(a)92 U 235
(b)92 U 234
c)92 U 233
d)92 U 238_ #Answere

(3) Human population growth is greatest in developing countries because:

(a) the birth rate is high in developing countries_ #Answere
(b) the death rate is high in developing countries.
(c) much of the population has already reached the child bearing age.
(d) most of the world’s population lives in industrialized countries.

(4) Which woody raw material is used for the manufacture of paper pulp?

(a) Cotton
(b) Poplar __ #Answere
(c) Bagasse
(d) Rice straw

(5) Rectified spirit contains alcohol about:

(a) 80%
(b) 95% __ #Answere
(c) 70%
(d) 85%

(6) Which of the following elements is not present abundantly in earth’s crust:

(a) Silicon
(b) Radium__ #Answere
(c) Aluminum
(d) Carbon

(7) The famous book; Al – Qanoun was written by the Muslim scientist:

(a.) Jabar bin Hayyan
(b) Zakariya Al – Razi
(c) Abu Ali Sina__ #Answere
(d) Abdul Qasim Majreeti

(8) Basic metals can be converted into gold by:

(a) Heating
(b) Beating
(c) Artificial nuclear radioactivity__ #Answere
(d) Chemical reaction

(9) A light year is a unit of:

(a) Time
(b) Energy
(c) Length__ #Answere
(d) Mass

(10) One of the main function of the earth’s ozone layer is to:

(a) Prevent global warming
(b) Filter out ultraviolet rays _ #Answere
(c) Absorb pollution
(d) All of the above

(1) Person with following blood group are considered to be universal recipient.

a. A+
b. B+
c. AB+
d. O+
e. None of these__ #Answere

The AB group is considered to be universal recipient

(2) Study of life in outer space is known as:

a. Endobiology
b. Exobiology__ #ANswere
c. Enterobiology
d. Neobiology
e. Micro biology

(3) The name of the common mineral salt present in sweat is:

a. Calcium Oxalate
b. Potassium Sulphate
c. Sodium Chloride__ #Answere
d. Iron Sulphate
e. None of these

(4) Sensitive layer of the eye is:

a. Choriods
b. Sclerotic
c. Retina__ #Answere
d. Cornea
e. None of these

(5) Laughing gas has chemical composition of following two elements.

a. Nitrogen + Hydrogen
b. Nitrogen + Carbon_- #Answere
c. Nitrogen + Oxygen
d. Oxygen + Carbon
e. None of these

(6) Dr. Abdus Salam of Pakistan was one of the contributors of the unification of:

a. Electromagnetic force and gravitational force
b. Electromagnetic force and weak nuclear force #Answere
c. Gravitational force and weak nuclear force
d. Weak nuclear force and strong nuclear force
e. None of these

(7) Which triplet in DNA codes for valine:

a. CTT
b. AGU
c. CAT
d. AAT
e. None of these #Answere

(8) What is the chance of diabetic baby born to parents both heterozygous normal ?

a. Zero
b. ¼ #Answere
c. ½
d. ¾
e. None of these

(9) Which of the following is not a part of Darwinism:

a. Over production #Answere
b. Natural selection
c. Inheritance for acquired characters
d. Competition for survival
e. None of these

(10) Role of biotechnology in the production of food based on:

a. Decomposition
b. Respiration
c. Digestion
d. Fermentation #Answere
e. None of these

(11) Which form of drug abuse involves most risk of infection with the HIV (AIDS) virus:

a. Cigarette smoking
b. Using alcholo
c. Injection of heroine #Answere
d. Taking too much aspirin
e. None of these

(12) Founder of modern astronomy was:

a. Archimedes
b. William Gilbert
c. Nicolas Copernicus #Answere
d. Michael Faraday
e. None of these

(13) The instrument which measures very high temperature is:

a. Manometer
b. Thermostat
c. Chronometer
d. Pyrometer #Answere
e. None of these

General Science MCQ Objective Quiz Questions with Answers for Competitive exams

(14) The science which deals with study of manners and customs of people is:

a. Ethnology (branch of anthropology) #Answere
b. Morphology
c. Ethics
d. Genetics
e. None of these

(15) Chemical used to kill rats and mice are:

a. Insecticides
b. Rodenticides #Answere
c. Fungicides
d. Herbicides
e. None of these

(16) Dry ice is:

a. Methane hydrate
b. Liquid Nitrogen
c. Solid Carbon dioxide #Answere
d. Frozen Water
e. None of these

(17) Chemical name of vinegar is:

a. Sodium Nitrate
b. Dilute acetic acid #Answere
c. Chloride of lime
d. Calcium
e. None of these

(18) Defeciency of following vitamin decreases hemoglobin production:

a. Biotin
b. Thiamine
c. Niacin
d. Pyridoxine (known as Vitamin B6, causes anemia i.e. deficiency of hemoglobin) #Answere
e. None of these

(19) Hygrometer is used for measuring the:

a. Speed of sound
b. Density of milk
c. Humidity of air #Answere
d. Specific gravity of liquids
e. None of these

(20) Bronze is an alloy of:

a. Copper and Zinc
b. Tin and Zinc
c. Copper and Tin #Answere
d. Iron and Zinc
e. None of these

(21) Which of the following is most elastic ?

a. Steel #Answere
b. Rubber
c. Glass
d. Sponge
e. None of these

(22) Orbital period of the planet Mercury around the sun is:

a. 88 days #Answere
b. 365 days
c. 2 years
d. 98 days
e. None of these

(23) The most splendid and the most magnificient constellation on the sky is:

a. Orion #Answere
b. Columbia
c. Canis Major
d. Taurus
e. None of these

(24) “Black holes” refer to:

a. Hole occurring in heavenly bodies
b. Bright spots on the sun
c. Collapsing objects of high density #Answere
d. Collapsing of low density
e. None of these

(25) Eugenics is the study of:

a. Altering human beings by changing their genetic components (close to the actual definition) #Answere
b. People of European region
c. Different races of mankind
d. Genetic of plants
e. None of these

Eugenics: study of the possibility of racial improvement through selective breeding and other methods

(26) The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called:

a. Aphelion #Answere
b. Perihelion
c. Perigee
d. Apogee
e. None of these

(27) Diamond is a very expensive ornament. It is composed of a single element:

a. Carbon #Answere
b. Gold
c. Silver
d. Platinum
e. None of these

(28) Which of the following layers make radio transmission possible?

a. Troposphere
b. Ionosphere #Answere
c. Mesosphere
d. Stratosphere
e. None of these

(29) Which of the following explains the reason why there is no total eclipse of the sun?

a. Size of the earth in relation to that of moon
b. Orbit of moon around earth
c. Direction of rotation of earth around sun
d. Area of the sun covered by the moon #Answere
e. None of these

(30) Television signals are converted into light signals by:

a. Optical fiber
b. Transistor
c. Decoder
d. Photo diode #Answere
e. None of these

(31) Where do most of Asteroids lie?

a. In asteroid belt between the orbits of Mars and Jupiter((( #Answere ))))
b. In asteroid belt between the orbits of Mars and Venus
c. In asteroid belt between the orbits of Jupiter and Venus
d. Everywhere in the sky
e. None of these

(32) The number of spark plugs needed in a diesel engine is:

a. 2
b. 3
c. 0 #Answere
d. 4
e. None of these

(33) The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?

a. 4 days
b. 12 days
c. 16 days
d. 8 days #Answere
e. None of these

(34) The term ‘Blue Shift’ is used to indicate:

a. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object.#Answere ))))
b. Turning a star from white to blue
c. In future sun would become blue
d. Black hole was blue at its start
e. None of these

The opposite is the famous red shift which indicated the universe is expanding away from us.

(35) Kilowatt-hour is a unit of:

a. Power
b. Electric Current
c. Energy #Answere
d. Time
e. None of these

(36) Fuel used in a Fast Breeder Reactor is:

a. Uranium Oxide
b. Uranium Plutonium carbide
c. Uranium Plutonium Oxide #Answere
d. Uranium thorium Oxide
e. None of these

FBRs usually use a mixed oxide fuel core of up to 20% plutonium dioxide (PuO2) and at least 80% uranium dioxide (UO2).

(37) Monsoon is caused by:

a. Seasonal reversal of winds #Answere
b. Revolution of earth
c. Movement of clouds
d. Rise in temperature
e. Rain forests

(38) Which of the following atmospheric layers help in radio communication?

a. Exosphere
b. Ionosphere #Answere
c. Troposphere
d. Stratosphere
e. Ozone layer

(39) A moderator is used in nuclear reactor in order to:

a. Accelerate the neutrons
b. Slow down the speed of the neutrons #Answere
c. Increase the number of elections
d. Decrease the number of electrons
e. None of these

(40) Sedimentary rocks are:

a. Porous #Answere
b. Hard
c. Rough
d. Brittle
e. Volcanic

(41) Which one of the following is a non-metallic mineral?

a. Manganese
b. Magnesium
c. Gypsum #Answere
d. Bauxite
e. None of these

(42) Ozone layer prevents the following radiation from entering the atmosphere:

a. Infra-red
b. Ultraviolet #Answere
c. X-rays
d. Gamma rays
e. None of these

(43) The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from:

a. Ionosphere #Answere
b. Troposphere
c. Mesosphere
d. Stratosphere
e. None of these

(44) Yeast is used in making bread because it produces:

a. Carbon dioxide #Answere
b. Sugar
c. Bacteria
d. Oxygen
e. None of these

(45) Oasis is associated with:

a. Glaciers
b. Desert #Answere
c. Islands
d. Volcanoes
e. Fertile land

(46) Quartz crystal in quartz watches work on the principle called:

a. Photoelectric effect
b. Stark effect
c. Thermionic effect
d. Piezo-electric effect #Answere
e. None of these

(47) The fruits without seed, like banana, are called:

a. seedless fruits
b. parthenogenesis fruits
c. parthenocarpic fruits #Answere
d. placental fruits
e. Organic fruits

(48) Animal which captures and readily kills living animals for its food is called:

a. Parasite
b. Scavenger
c. Predator #Answere
d. Mammal
e. None of these

(49) In a railway track, two rails are joined end to end with a gap tin between them because:

a. Steel can be saved
b. Accidents due to contraction in winter can be avoided
c. Air gaps are necessary for bearing the weight of running train
d. Accidents due to expansion in summer can be avoided #Answere ))))
e. All of these

(50) Name the famous book of Ibn-Sina in which he discussed human physiology and medicine:

a. Al-Qanoon #Answere
b. Al-Masudi
c. New Renaissance
d. Tadhkira
e. None of these

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