EVERYDAY SCIENCE MCQS

Everyday Science Mcqs From Past Papers for

           CSS & PCS Exams

       Everyday science is an important topic for various competitive exams like STS, NTS, CSS, FPSC, IBS, SST, PST, JEST, and many others. These exams often include questions related to basic scientific principles and concepts that we encounter in our daily lives. The questions can range from identifying the largest organ in the human body to understanding the chemical reactions that occur during everyday activities such as cooking and cleaning.

                   Everyday Science Mcqs From Past Papers For CSS & PCS Exams

1. the most important stimulant in tea leaves is

A. Burcina

B. Caffeine

C. Phenylalanine

D. Theine

Answer is = B

2. dolly is the name of the

A. first cloned sheep

B. first cloned monkey

C. first test- tube baby

D. first human fossil

Answer is = A

3. Which part of the camera is analogue to the retina in the human eye?

A. lens

B. film

C. aperture

D. shutter

Answer is = B


4. When a person enters a dark room from bright light he is not able to see

A. Eye is unable to adjust itself immediately

B. Retina becomes insensitive momentarily

C. Lris is unable to dilate the pupil immediately

D. Distance between the lens and retina take time to adjusted

Answer is = C

5. What is the average adult plus rate?

A. 140-150

B. 115-125

C. 72-80

D. 60

Answer is = C

6. The beautiful color patterns exhibited by a peacock in its tail feathers are due to

A. selective absorption of light

B. selective reflection of light

C. sinterference of light

D. natural color pattern of feathers

Answer is = A

7. A take starts freezing because of the cold atmosphere. It will first freeze

A. At the bottom

B. In the middle part

C. At the top surface

D. Uniform throughout the water body

Answer is = C

8. the sun appears red at sunrise and sunset while it appears white at noon, because

A. of refraction

B. it color at sunrise and at sunset

C. of diffraction leading to red end of

the spectrum reaching the earth

D. of scattering of light due to dust particles and air molecules

Answer is = D

9. An astronaut inside a spacecraft is in a state of weightlessness. This implies that

A. the mass of the astronaut is reduced to zero

B. Gravity inside the spacecraft cases to act

C. The astronaut is outside the influence of the earth’s gravitational force

D. The astronaut and the spacecraft are both in a free-falling state

Answer is = D

10. An iceberg is floating in sea. How much of its mass will remain above the surface of water?

A. One tenth

B. One fifth

C. One fourth

D. One third

Answer is = A

11. Most of the ozone in the atmosphere is concentrated in the

A. Mesosphere

B. troposphere

C. stratosphere

D. lonosphere

Answer is = C

12. The cow’s milk contains how much amount of water in terms of percentage?

A. 60 %

B. 65 %

C. 72 %

D. 80 %

Answer is = D

13. T.V Transmission cannot cover a very large area because.

A. the strength of T.V waves is very limited

B. picture cannot be transmitted clearly after a specific distance.

C. the shape of the earth is spherical

D. the air is not a good conductor of light and sound/waves.

Answer is = C

14. The Green House Effect is caused by an excess of

A. carbon dioxide

B. carbon monoxide

C. carbon tetrachloride

D. none of above

Answer is = A

15. Bats can also fly in dark because they are capable of taking the help of

A. Ultraviolet waves

B. ultrasonic waves

C. Electromagnetic waves

D. Special Retinal

Answer is = B

16. What is ‘Stealth technology’?

A. A device which when attached to

makes an aircraft it invisible on the radar

B. A coating which reduces the

visibility of an aircraft on a order

C. A technology by which it is possible

for the aircrafts to spy in the enemy air-space

E. A technology by using which paratroopers

can be drooped stealthily behind the enemy columns

Answer is = B

17. The primary function or the feathers in birds is to

A. Provide insulation for preserving body heat

B. provide striking surface to wings for flying

C. make the body surface water proof

D. impart coloration for species as well as sex recognition

Answer is =B

18. The rear view mirror of a motor vehicle is

A. concave

B. plane

C. convex

D. Biconcave

Answer is = C

19. Lead ball falls through water more slowly than through air because

A. the value of ‘g’ is less in water

B. Density of air is than that of water

C. of the viscous forces in water

D. of the surface tension of water

Answer is = C

20. A Fahrenheit thermometer indicates a temperature of 14f its Celsius scale will be

A. _20 c

B. _ 10 c

C. + 10 c

D. + 20 c

Answer is = B

21. Which one of the following sets of colour combinations is added in colour vision in T.V?

A. Red, green and blue

B. orange, lack and violet

C. White, red and yellow

D. Yellow, green and blue

Answer is = A

22. A train goes past a railway station at a high speed A young boy standing on the edge of the platform is

likely to.

A. remain unaffected

B. Fall away from the train

C. Fall towards the train

D.Fall away from or toeards the train depending upon the speed

Answer is = C

23. Water is highly effective coolant for a car engine because

A. Water is good conductor of heat

B. Water has very high specific heat

C. Water boils at a comparatively high temperature

D. Evaporation of water produces lot of cooling

Answer is = A

24. Scalding with steam is more severe than scalding by boiling water because

A. Steam can penetrtae thi skin

B. Steam is at a higher temperature

C. Steam contain more energy than boiling water

D. Steam is at a higher pressure

Answer is = C

25. In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is

termed as

A. Electroplating

B. Annealing

C. Ga

Answer is = C

 

 

 

 

 

 

Everyday Science Mcqs Foe PCS & CSS Exams

1. Neil A. Armstrong visited the moon on july 16, 1969 and remained there for 21 hours and 36 min. Name the manned spacecraft which took him on this mission ?

a. U.S Gemini 12

b. USSR Soyuz 5

c. U.S Apollo 2

d. U.S Apollo 9

2. How much time the light takes to reach from the sun to the earth?

a. Four minutes and 30 sec

b. eight min and 15 sec

c. Seven min and 15 sec

d. Six min and 30 sec

3. Astronomical unit is a bigger unit of distance and it is used to measure distance btw the heavenly bodies of

the solar system .One astronomical unit is equal to how much Km in whole numbers?

a. 50 million km

b. 100 million km

c. 150 million km

d. one million km

4. Name the nearest Star to our sun.

a. Proxima Centurai

b. Alpha Scorpii

c. Beta Orionis

d. Vega

5. Name the nearest regular qalaxy to our milky way

a. NGC 185

b. Small Magellanic

c. Large Magellanic Cloud

d. Andromeda

6. Name the largest moon in our solar system

a. Ganymede

b. Titan

c. Callisto

d. Miranda

7. Atmosphere of the earth is made up of different spheres. In which part of the atmosphere commercial

aircrafts usually fly.

a. Thermosphere

b. Stratosphere

c.. Troposphere

d. Mesosphere

8. The sun arised on the North pole on the 21st march and this pole remains in light till what date ?

a. 23rd sep

b. 21st sep

c. 22nd june

d. 22nd dec

9. Name the gas which was discovered on the sun about 125 years ago during eclipse-watching..

a. Hydrogen

b. Helium

c. Nitrogen

d. Argon


10. What is the approximate age of the sun ?

a. 6.4 thousands years

b. 6.4 billion years

c. 6.4 million years

d. 6.4 hundred thousands years

ANSWERS

1. C , 2. b , 3. c , 4. a , 5. d

6. a , 7. c , 8. a , 9. b , 10. b

 

 

 

01. Jupiter is the fifth planet from the sun. It is named after the greatest of the roman gods. It is much bigger than Earth. About how many earths would equal to one jupiter ?

a. 100

b. 500

c. 700

d. 1000

02. Physicists have known about these high energy invisible rays for 80 years , but their precise nature is still a mystery. they come from unknown parts. they pack a mean energy. And they seem to break the laws of
physics. Name them.

a. X-rays

b. UV-rays

c. Visible rays

d. Cosmic rays

03. Faster than a speeding bullet, more powerful than a supernova, able to crush small planets with a single swipe these are primordial, angel-hair thin cracks in the structure of the space. Name them

a. Cosmic strings

b. Saturn rings

c. Newton`s rings

d. Black holes

04. Name the instrument which is used to measure the speed of an aircraft relative to the speed of sound.

a. Speedometer

b. Altimeter

c. Telemeter

d. Machmeter

05. A layer of Ozone in the stratosphere protects the earth by blocking most of the sun`s harmful ultraviolet

light. These are high energy radiations. Which of the following can have the potential effect of UV light.

a. Eyes

b. Skin

c. Crops

d. All the above

06. For growth , Viruses require

a. Dead host

b. Living host

c. Minerals

d. Simple sugars

07. In which of the following are Mitochondria absent ?

a. Fungi

b. Andiosperms

c. Green algae

d. Blue-green algae

08. Eucaryotic organisms are those that contains

a. DNA threads

b. Plastids

c. True nucleus

d. Vacuoles

09. The merismatic cells are

a. Thin walled

b. Isodiametric

c. Richly protoplasmic

d. All of above

10. The deficiency of which of the following micronutrients causes the death of the stem and root apices ?

a. Boron

b. Copper

c. Manganese

d. Zinc

11. Plant development is influenced by

a. Quality of light

b. Quality and quantity of light

c. Quality and duration of light

d. Quality , quantity and duration of light

12. Critical day length Varies from plant to plant and lies between

a. 6 to 100 hours

b. 8 to 12 hours

c. 10 to 14 hours

d. None of above

13. ATP is

a. An enzyme

b. A hormone

c. A protein

d. A molecule containing high energy bonds

14. The primary producers of organic matter in nature are

a. Bacteria

b. Fish

c. Green plants

d. Human beings

15 . Edible part of tomato is

a. Endocarp

b. Fleshy thalamus

c. Mesocarp

d. Whole fruit

16. Who amongst the following, started in 1850, a scientific approach to determine the role of mineral

elements in the healthy growth and development of plants ?

a. Arnon and Knop

b. Sachs and Knop

c. Sachs and Stout

d. Arnon and Stout

17. The primary plant body consists of how many tissue systems ?

a. 2

b. 3

c. 4

d. 5

18. Bamboo is a

a. Herb

b. Grass

c. Shrub

d. Three

19. Cork cells are impervious to water because of the presence of

a. Cellulose

b. Cutin

c. Lignin

d. Suberin

20 . Ethylene is a hormone concerned with

a. Respiration

b. Ripening of fruits

c. Cell division

d. None of the above

21. The cavity of Ascaris is known as

a. Ceolom

b. Haemocoel

c. Pseudocoel

d. Visceral cavity

22. Crura-cerebri is found in

a. Fore-brain

b. Hind-brain

c. Mid-brain

d. None of above

23. Man is

a. Biothermic

b. Homoiothermic

c. Oilgothermic

d. Poikilothermic

24. The compound eye of insect produces

a. Binocular vision

b. Monocular vision

c. Mosaic vision

d. None of above

25. The post embryonic stages in the life history of cockroach is known as

a. Caterpillar

b. Grubs

c. Larval

d. Nymohs

26. Which of the following control the reflex action in the body ?

a. Central nervous system

b. Motor nerves

c. Sensory nerves

d. sympathetic nervous system

27. The terminal part of vertebral column in man is called

a. Telson

b. Urostyle

c. Coceyx

d. Pygostyle

28. The life history of human malarial parasite in Anopheles was first described by

a. Grassi and his pupil

b. Sir Patrick Manson

c. Sir Ronald Ross

d. Richard Pfeiffer

29. The ” Urinary system ” of the body consists of how many organs ?

a. 2

b. 3

c. 4

d. 5

30. Haryersion canals are present in

a. Bone

b. Cartilage

c. Kidney

d. Liver

31. The gestation period of human being is

a. one month

b. five months

c. seven months

d. Nine months

32. RNA differs from DNA in containing

a. Cytocine

b. Deoxyribose

c. Ribose

d. Phosphate

33. The first heart is produced when

a. Bisuspid and tricuspid close quickly

b. Semilunar value snaps shut

c. Intraventricular pressure decreases

d. Diastole begins

34. Who discovered the blood group of man ?

a. Edward Jenner

b. Larven

c. Kari Landsteiner

d. William Harvey

35. Which of the following glands has both an endocrine and an exocrine function ?

a. Adrenal

b. Mammary

c. Pancreas

d. Thyroid

36. Radio carbon dating is used to find the age of

a. Fossils

b. Buildings

c. Rocks

d. Babies

37. Geiger Counter is an instrument

a. Determine the heart beat rate

b. To detect radioactive radiation

c. To measure intensity of visible light

d. To count the baggage of an airport

38. The instrument used in a submarine to see the object on the surface of water is

a. Periscope

b. Telescope

c. Kaleidoscope

d. Microscope

39. Three primary colours used in the colour TV are

a. Green-yellow-blue

b. Yellow-blue-red

c. Red-green-yellow

d. Green-blue-red

40. Anemometer is used to measure

a. Wind gustiness

b. Wind direction

c. Wind speed

d. Vertical variation of wind speed

41. Which of the following gives the correct indication of composition of bronze ?

a. Copper and tin

b. Iron and zinc

c. Copper and silver

d. Lead and oxygen

42. The hardest of all metals is

a. Gypsum

b. Diamond

c. Topaz

d. Corundum

43. In electrolysis , the reaction at anode is

a. Ionisation

b. Polymerization

c. Reduction

d. Oxidation

44. Carbon dioxide is a good fire extinguisher because

a. It is a combustible gas

b. it excludes air from the flames

c. It lowers the killing temperature

d. It is plentiful

45. If a body is moved from equator to pole on the mean sea level , then its weight

a. Decrease always

b. Increases always

c. Constant

d. None of above

46. To an astronaut in the spacecraft , the sky appears to b

a. Blue

b. White

c. Dark

d. Red

47. When a ship enters a sea from a river , Its portion under water will

a. Increase

b. Decrease

c. Show no change

d. Increase and decrease alliteratively

48. Kilowatt is the unit of

a. Voltage

b. Power

c. Resistance

d. Current

49. The sun derives its energy from

a. Nuclear fission reactions

b. Nuclear fusion reactions

c. Oxidation of helium

d. Fission of noble metals

50. Which of the following is useful in the chemistry of photography ?

a. Silver bromide

b. Aluminum hydroxide

c. Sodium chloride

d. Potassium nitrate

 

 

 

 

Answers

01. d , 02. d , 03. a , 04. d , 05. d

06. b , 07. d , 08. c , 09. d , 10. a

11. d , 12. c , 13. d , 14. c , 15. d

16. b , 17. b , 18. b , 19. d , 20. b

21. a , 22. c , 23. b , 24. c , 25. d

26. a , 27. c , 28. c , 29. b , 30. a

31. d , 32. c , 33. d , 34. c , 35. c

36. a , 37. b , 38. a , 39. d , 40. a

41. a , 42. b , 43. d , 44. b , 45. b

46. a , 47. b , 48. b , 49. b , 50. a