Lets solve EDS Past Papers - Page 13

Sara Arshad · #**121** Saturday, June 30, 2012

Seniors please guide me, how many pat papers should i solve for the preparation of "Every Day Sciece"?
10 years papers are enough or i have to solve all of them?

alihashmatkhoso · #**122** Saturday, June 30, 2012

yes 10 years papers enough for the eds, that i know you will cover a lot of eds, but don't forget that this is a competitive exam and you must go for further topics this is most unpredictable exam, just take an exp of css2012, geography dominated in question paper,before this student and most teachers also suggested that one should skip geo, portion in eds..........

.

Arthur · #**123** Saturday, June 30, 2012

Quote:

Originally Posted by Sara Arshad

Seniors please guide me, how many pat papers should i solve for the preparation of "Every Day Sciece"?
10 years papers are enough or i have to solve all of them?

My correct MCQs in CSS 2011 EDS paper were 44.
I had solved past papers from 1985.

multithinker · #**124** Tuesday, January 22, 2013

Respiration Photosynthesis
1. Respiration is a catabolic process in which compounds are broken down.
2. In this process the carbohydrates are broken down into simple sugars.
3. The end of the products is CO2 and H2O.
4. Occur during day and night. Light is not necessary for this process.
5. Energy is released from food material.
1. Photosynthesis is an anabolic process in which compounds are formed.
2. In this process the carbohydrates are manufactured.
3. The end product of this process is simple carbohydrates.
4. Occur during day time only. Light is necessary for the process.
5. It is energy coming process.
Renewable Resources of Energy Non-Renewable Resources of Energy
1. Renewable resources are used continuously and can be used again and again.
2. Examples are air, water, soil, wild life, forests, fish etc.
3. Renewable resources are constantly renewed by biogeochemical cycles of nature. E.g.: Animals take O2 and return to CO2 to environment.
1. Non-renewable resources of energy cannot be used again and again after their consumption.
2. Major examples include coal, oil, natural gas etc.
3. Non-renewable resources are being exhausted a day by day because their demand rise. Due to worldwide demand of fossil fuels; its supplies are declining.
Artery Vein
1. Arteries are blood vessels which transport blood away from the heart.
2. The inside lumen or bore of the arteries is narrow.
3. Arteries carry oxygenated blood with the exception of pulmonary artery.
4. The walls of the arteries are elastic.
5. The blood is under great pressure in arteries
Arteries are end in capillaries.
1. Veins are blood vessels which always carries blood towards the heart.
2. The inside bore or lumen of veins is wide.
3. The walls of vein are less elastic.
4. The blood under less pressure in veins.
5. Veins start from capillaries.
Lymph Plasma
1. Lymph is the part of blood which comes out of the blood capillaries.
2. The lymph is in direct contact with tissues.
3. The lymph usually contains Bacteria.
4. Lymph moves slowly. 1. Plasma is that part of blood which remains inside the blood vessel.
2. The plasma doesn’t have a direct contact with the tissue.
3. Plasma usually does not contain Bacteria
4. Plasma move quickly.
Laser Light Ordinary Light
1. Laser light is disciplined light.
2. Laser light has photons of same length.
3. It can be focused on very small point.
4. It is coherent light.
5. It is used in medicine and for diagnostic purposes.
1. It is undisciplined light.
2. Ordinary light has no photons of the same length.
3. It cannot be focused on a very small point.
4. It is incoherent light.
5. It has no medical use.

fahdshk · #**125** Tuesday, February 12, 2013

I would try to reason the answers! Here is what I believe.

(29) Which of the following explains the reason why there is no total eclipse of the sun? its D
a,b and c are always constant. It is there combo that decides D and that eventually decides how much sun is covered by moon.
d. Area of the sun covered by the moon

(35) Kilowatt-hour is a unit of: C
c. Energy (generally measures electricity that one uses at home)

Kindly Correct me if I am wrong, Regards.

Quote:

Originally Posted by xaara~hussain

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

a. A+
b. B+
c. AB+
d. O+
e. None of these

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

a. Endobiology
b. Exobiology
c. Enterobiology
d. Neobiology
e. Micro biology

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

a. Calcium Oxalate
b. Potassium Sulphate
c. Sodium Chloride
d. Iron Sulphate
e. None of these

(4) Sensitive layer of the eye is:

a. Choriods
b. Sclerotic
c. Retina
d. Cornea
e. None of these

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

a. Nitrogen + Hydrogen
b. Nitrogen + Carbon
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
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

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

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

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

a. Over production
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
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
d. Taking too much aspirin
e. None of these

(12) Founder of modern astronomy was:

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

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

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

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

a. Ethnology
b. Morphology
c. Ethics
d. Genetics
e. None of these

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

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

(16) Dry ice is:

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

(17) Chemical name of vinegar is:

a. Sodium Nitrate
b. Dilute acetic acid
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
e. None of these

(19) Hygrometer is used for measuring the:

a. Speed of sound
b. Density of milk
c. Humidity of air
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
d. Iron and Zinc
e. None of these

(21) Which of the following is most elastic ?

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

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

a. 88 days
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
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
d. Collapsing of low density
e. None of these

(25) Eugenics is the study of:

a. Altering human beings by changing their genetic components
b. People of European region
c. Different races of mankind
d. Genetic of plants
e. None of these

(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
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

b. Gold
c. Silver
d. Platinum
e. None of these

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

a. Troposphere
b. Ionosphere
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
e. None of these

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

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

(31) Where do most of Asteroids lie?

a. In asteroid belt between the orbits of Mars and Jupiter
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
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
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.
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

(35) Kilowatt-hour is a unit of:

a. Power
b. Electric Current
c. Energy
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
d. Uranium thorium Oxide
e. None of these

(37) Monsoon is caused by:

a. Seasonal reversal of winds
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
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
c. Increase the number of elections
d. Decrease the number of electrons
e. None of these

(40) Sedimentary rocks are:

a. Porous
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
d. Bauxite
e. None of these

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

a. Infra-red
b. Ultraviolet
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
b. Troposphere
c. Mesosphere
d. Stratosphere
e. None of these

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

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

(45) Oasis is associated with:

a. Glaciers
b. Desert
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
e. None of these

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

a. seedless fruits
b. parthenogenesis fruits
c. parthenocarpic fruits
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
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
e. All of these

(differences in temperature cause the materials to either shrink or expand. With a lot of shrinking and expanding occurring, these materials would crack or break down if there wasn't any allowance for the movement. Also these gaps are used to compensate for the weight of the load crossing vehicles which presses the bridge to its maximum shear capacity. The gaps serve as this allowance for movement in terms of both temperature and weight.
Why do engineers build bridges and railway lines with gaps in between)

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

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

fahdshk · #**126** Tuesday, February 12, 2013

21. Gases and Liquid actually transfer heat through convection so A is true but then Vacuum also allows heat to pass through Radiation and not conduction so it is true as well! now what?

23. It is Atoms. In fact a molecule is a combination of Atoms.

27. Your Answer is Right! Just to clear you out ..
PH of Strong Base is 14, PH of strong Acid is 0, PH of Water is 7. Ok when you will Add alkali to the solution, then the PH will increase and increase only.

31. Its combo of all. The very computer you are using is converting electrical signals into Bits, optical fibers send it to long distance, and you have radio waves too that are facilitating this all. (the question is part of computer course waisay)

33. Add subtract and sort but cannot classify information.

[QUOTE=xaara~hussain;405827]1. The planet of the solar system which has maximum numbers of Moon is:

21.Which one of the following statements is true:

a) Gases do not conduct heat
b) The best conductors are non-metals
c) Conduction currents occur only in liquids
d) A vacuum can not conduct heat
e) None of the statements is true.

23. The building blocks of elements are called:

a) Atoms
b) Molecules
c) Compounds
d) Isotopes
e) None of these

27. If an alkali is slowly added to an acidic solution, the pH of the acidic solution will:

a) Increase (not sure)
b) Decrease
c) Increase to 7 and then decrease
d) Decrease to 7 and then increase
e) Will remain same

31. Information can be sent over long distances in the form of:

a) Electrical signals through wires
b) Light signals through optical fibres
c) Radio waves through air
d) Any combination of these three.
e) None of these

33.Computers can:

a) Add and subtract information only.
b) Add subtract and sort information only.
c) Add subtract sort and classify information.
d) Add and subtract but cannot sort information.
e) Add subtract and sort but cannot classify information.

fahdshk · #**127** Tuesday, February 12, 2013

This is what I believe, kindly have a look.

1. C (Gases and Liquid transfer heat by Convection, so is air)

10. A (You are Right, Light is Visible to human eye, which is one of its properties) (Transparent or Opaque are the material themselves actually, the material like glass or air which allows one to see through is called transparent while opaque are those which do not allow such as dust particles in this case), had light been invisible (Not Visible), we all would have been blind.

11. A (we need same size, its a plane mirror, had it been concave even then we would have been dependent upon the object distance!)

19. E (none, its a unit of flow for e.g. water flow; volume per second)

22. B (Magnification = Distance/focal length)

26. A (That's why Astronauts need to wear those suits else they gonna explode in space, so An equal and opposite pressure acts from inside)

40. I am not sure, I feel it is Basal Metabolism; essential body process only it says.

48. Oxygen (By weight)

[QUOTE=xaara~hussain;405860]
1. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by :
a) Conduction
b) Convection
c)Radiation
d) Reflection
e) None of these

10. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is :

a) Visible
B) Transparent
c) Invisible
d) opaque
e) None of these

11. A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be :

a) 6 feet
b) 12 feet
c) 4 feet
d) 3 feet
e) None of these

19. Cusec is a unit of :

a) Area
b) Time
c) Distance
d) mass
e) None of these

22. Magnifying power of a simple microscope can be increased by :

a) increasing focal length of the lens
b) Decreasing focal length of the lens
c) Lens of large aperture
d) lens of short aperture
e) None of these

26. It is observed that the total pressure exerted by air on the man of average siz is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of :

a) An equal and opposite pressure acts from inside
b) of the height of a man
c) of gravity
d) Earth pulls the man upward
e) None of these

40. The energy needed to fuel essential body processes is called :

a) Essential nutrient level
b) Basal metabolism
c) None of these
d) recommended daily allowance
e) Optimum energy intake

48. The most abundant element present is in the human body is :

a) Nitrogen
b) Oxygen
c) Carbon
d) Hydrogen
e) None of these

Intifada · #**128** Wednesday, February 13, 2013

kindly answer this question please.
how volcanoes helped the formation of earth crust? (1999)

Roshi khan · #**129** Saturday, April 06, 2013

Quote:

Originally Posted by Last Island

EVERYDAY SCIENCE PAPER 1993

Silicate
One cell
100-1000 Nanometer
Proton
Hydrogen
760mm
Iron Oxide

[/LIST]

Vitamin C
Starch
Vitamin A
Vitamin A
Vitamin C
Vitamin D
Vitamin A, C, D
Vitamin K

helium and hydrogen
its 760mmHg not 760mm

Roshi khan · #**130** Saturday, April 06, 2013

[QUOTE=Last Island;111249]

A psychrometer is an instrument commonly used in laboratories to measure relative humidity in the air[B].
Psychrometer is used to measure the heat index. relative humidity of air in laboratories is measured by hygrometer :-)

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