model test paper rrb exam general science life sciences

8/7/2019 Model Test Paper RRB Exam General Science Life Sciences

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Model Test Paper RRB Exam General Science Life SciencesSolved Paper Model RRB (Railway Recruitment Boards) ( Commercial Clerk ,Account Clerk )

(RRB) Railway Recruitment Board Exam Solved Paper Question paper.Download model question papers

1. Which of the following is not a bone in thehuman body?(a)Sternum

(b) Humerus(c)Pericardium

(d) Tibia

Ans : c

2. Rennin and lactase, the enzymes required to digest milk, disappear in the human body by the

age of

(a) two(b) three(c) five

(d) eight

Ans : a

3. Duodenum is situated(a) at the uppermost part of the small intestine

(b) near the lungs(c) in the brain

(d) at the tail end of the intestine

Ans : a

4. The heart is covered by a membrane called

(a) Epidermis(b) Dermis

(c)Epicardium(d) Pericardium

Ans : d

5. About ..of the total calcium present in the human body is in the blood.(a) 99%

(b) 70%(c) 5%

(d) 1%

Ans : d


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6. Phenylketonuria is an example of an inborn error of metabolism. This error refers to(a) hormonal overproduction

(b) non disjunction(c) atrophy of endocrine glands

(d) inherited lack of an enzyme

Ans : c

7. As in the arms and legs, blood flows against gravity and is prevented from flowing back by(a) the extremely low pressure of venous blood

(b) valves(c) movements in the surrounding muscles

(d) the narrowing down of the lumen of veins by the contraction of the muscle layer comprisingtheir walls

Ans : b

8. Identical twins arise when two(a) cells develop independently from the same zygote

(b) gametes develop independently(c) sperms develop independently

(d) ova develop independently

Ans : a

9. Element that is not found in blood is

(a)iron

(b) copper(c)chromium(d) magnesium

Ans : c

10. Scratching eases itching because

(a) it kills germs.(b) it suppresses the production of enzymes which cause itching,

(c) it removes the outer dust in the skin.(d) it stimulates certain nerves which direct the brain to increase the production of antihistaminic

chemicals.

Ans : d

11. The gland, which in relation to body size is largest at birth and then gradually shrinks after

puberty, is?(a) Thyroid

(b) Pituitary


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(c)Thymus(d) Adrenal

Ans : c

12. A human sperm may contain ?1. X-chromosome2. Y-chromosome

3. XY-chromosome(a) 1 only

(b) 2 only(c)1 and 2

(d) l,2 and 3

Ans : c

13. Which of the following is not a bone in the legsof human body?(a) Radius

(b) Tibia(c) Femur

(d) Fibula

Ans : a

14. Bleeding from artery is characterised by which of the following?

1. Blood is red.

2. Blood is purple.3. Bleeding is continuous.4. Bleeding is intermittent.

(a)1 and3(b) 2 and 3

(c)1 and 4(d) 2 and 4

Ans : b

15. Which of the following is not a vestigial organ?

(a) Centriole(b) Molar tooth

(c) Appendix(d) Diaphragm

Ans : d

16. Which of the following bone articulations forms the gliding joint?

(a) Humenis and radius


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(b) Carpals(c) Hip girdle and femur

(d) Skull & neck verterbrae

Ans : b

17. Pancreas secretes hormones which help in(a) blood clotting

(b) production of antibodies(c) growth of body

(d) keeping sugar balance in body

Ans : d

18. S-A node of mammalian heart is known as

(a) Autoregulator

(b) Pace-maker(c) Time controller(d) Beat regulator

Ans : b

19. Consider the following statements regarding blood pressure:1. It is the pressure exerted by the blood on the walls of any vessel.

2. It decreases in the arteries as the distance from the heart increases,3. It is lower in the capillaries than in the arteries.

4. It is usually lower in women than in men.

Of these, the correct ones are(a)1 and 4(b) l, 2and 3

(c)2,3 and 4(d) l,2,3 and 4

Ans : d

20. The hormone responsible for the secretion of milk in mothers, is?

(a) ACTH(b) Leutinizing hormone

(c) Adrenalin(d) Lactogenic hormone

21. What is the correct sequence of the following in heart attack?1. Narrowing of the inner orifice of the vessel

2. Plaque from fibrous tissue and high cholesterol3. Inadequate supply of blood and oxygen

4. Clots of blood carried into the coronary arteries


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(a)1,2,3,4(b) 2,4, 1,3

(c) 2, 3, 1, 4(d) 4, 2, 1 3

Ans : b

22. Bile juice is secreted by

(a)Pancreas(b) Liver

(c)Spleen(d) Gall bladder

Ans : b

23. Veins differ from arteries in having

(a) thinner walls

(b) strong walls(c) narrower lumen(d) valves to control direction of flow

Ans : d

24. What is the main function of insulin in the hman body?

(a) To maintain blood pressure(b) To help in digestion of food

(c) To control the level of sugar in the body(d) To check the level of iodine in the body

Ans : c

25. An enzyme that works in an acidic medium is(a) pepsin

(b) tiypsin(c) ptyalin

(d) maltose

Ans : a

26

. The blood pressure is the pressure of blood in(a)arteries(b) veins

(c)auricles(d) ventricles

Ans : a


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27. The total number of bones in human skull are(a) 8

(b) 12(c) 30

(d) 32

Ans : c

28. Which of the following glands controls the development of sex organs in humans?(a) Paancreas

(b) Thyroid(c) Adrenal

(d) Pituitary

Ans : d

29. Oxygen is transported to every cell of the humanbody by?(a)red blood cells

(b) blood platelets(c)white blood cells

(d) hormones

Ans : a

30. Which of the following components of blood protects human beings from infection?

(a) Plasma

(b) Blood Platelets(c) Haemoglobin(d) White Blood Corpuscles

Ans : d

31. The normal temperature of the human body is

(a) 90 F(b) 98 F

(c) 98.4 F(d)96.4 F

Ans : c

32 .If a person can see an object clearly when it is placed at distance of about 25 cm away fromhim, he is suffering from

(a) myopia(b) hypermetropia

(c) astigmatism


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(d) None of theseAns : d

33. The blood pressure values of four persons are

given below:

1. Mrs.X-90/602.Mr.X-160/120

3. Mr. Y-120/80

4.Mrs.Y-140/l00

Who among the following has normal blood pressure?(a) Mrs. Y

(b) Mr. X(c) Mrs. X

(d) Mr. Y

Ans : d

34. In the case of a Test-tube baby?

(a) fertilisation takes place inside the test tube.(b) development of the baby takes place inside the test tube.

(c) fertilisation takes place outside the mother body.(d) unfertilised egg develops inside the test tube.

Ans : c

35. Pituitary gland is present

(a) below the brain(b) above the brain(c) inside the brain

(d) nowhere near the brain

Ans : a

36. Which of the following organs is used in the purification of blood in human body?(a) Liver

(b) Kidney(c) Spleen

(d) Lungs

Ans : d

37. Cornea is a part of which of the following organs

of human body?(a) Eye

(b) Ear


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(c) Nose(d)Heart

Ans : a

38. What is Funny Bone?(a) A muscle(b) A nerve

(c) A bone(d) A blood vessel

Ans : b

39. Man cannot digest cellulose whereas cows can do so because?(a) their gut contains bacteria capable of digesting cellulose.

(b) they have a many chambered stomach.

(c) they have efficient grinding molars.(d) they produce an enzyme cellulase which can digest cellulose.

Ans : a

40. Which of the following when taken by pregnant women, is found to be the cause of deformed

children?(a) Glycerol

(b) Xylidine(c) Thalidomide

(d) None of these

Ans : c

41. The diploid number of chromosomes in human body is ?

(a) 24(b) 40

(c) 46(d) 48

Ans : c

42. The largest cell in the human body is

(a) Nerve cell(b) Muscle cell(c) Liver cell

(d) Kidney cell

Ans : a

43. Lichens are formed due to the symbiotic association of


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(a) moss and fungi(b) bacteria and fungi

(c) algae and fungi(d) None of these

Ans : c

44. Insects form the largest class of animals living on land and sea. They are grouped into

(a) 22 orders(b) 26 orders

(c) 29 orders(d) 32 orders

Ans : c

45. Which of the following statements is true for planktons?

(a) They live on the surface of lake water.(b They live on the bottom of lakes.

(c) They live on the plants growing in water.(d) They live in the water column.

Ans : b

46. Which of the following has the smallest egg?(a) Ostrich

(b) Humming bird

(c) Pigeon(d) Homo sapiens

Ans : c

47. The population of which of the following is maximum on the earth?

(a) Reptiles(b) Fishes

(c) Birds(d) Beetles

Ans : d

48. Poison glands of snakes are homologous to

(a) stings of rays(b) salivary glands of vertebrates

(c) electric organs of fishes(d) sebaccous glands of mammals


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Ans : b

49. The phylum chordata is characterised by the presence of(a) spinal cord

(b) notochord

(c) nerve chord(d) None of these

Ans : d

50. Which of the following activities is suppressed by the presence of auxins in plants?

(a) Growth of lateral buds(b) Cell division

(c) Root initiation(d) Development of fleshy fruits

Ans : c

.

General Science Quiz Objective Questions

with Answers

General Science Quiz Objective Questions with Answers

Test your general science knowledge with this MCQ multiple choice quizbasic science quiz

Free Science online objective examsScience for exams Like

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UPSC IES ExamPSC of Punjab Tamilnadu,Rajasthan and other exams

1. The type of glass used in making lenses and prisms is?(a) soft glass(b) pyrex glass

(c)jena glass(d) flint glass

2. Wood is the main raw material for the manufacture of ?

(a) paint


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(b) paper(c) ink

(d) gun powder

3. How does common salt help in separating soap from the solution after saponification?

(a) By decreasing solubility of soap(b) By increasing solubility of soap(c) By decreasing density of soap

(d) By increasing density of soap

4. Which of the following is commonly called a polyamide?(a) Rayon

(b) orlon(c)Terylene

(d) Nylon

5. The major ingredient of leather is ?(a)carbohydrate(b) collagen

(c)polymer(d) nucleic acid

6. In the manufacture of safety matches, which of the following materials are used to coat the

two sides of match boxes?1. Yellow phosphorus

2. Glue3, Glass powder

4. Red phosphorus(a) l, 2 and 3

(b) l,3 and 4(c) l,2 and 4

(d) 2,3and4

7. Glass is made of the mixture of ?(a)quartz and mica

(b) sand and salt(c)sand and silicates

(d) None of these

8. Epoxy resins are used as

(a)moth repellants(b) insecticides

(c)detergents(d) adhesives


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9.What is condensation?(a) Change of gas into solid

(b) Change of solid into liquid(c) Change of vapour into liquid

(d) Change of heat energy into cooling energy

10. Which of the following are true regarding acatalyst?

1. It is a substance which increases the rate of reaction.2. It is a substance which reduces the activation energy.

3. It is a substance which increases the activation energy.4. It is a substance which is consumed in the reaction.

(a) l and 2(b) 2 and 3

(c) 3 and 4(d) l and 4

11. Which of the following is a physical change?

(a)Oxidation(b) Reduction

(c)Sublimation(d) Decomposition

12. A substance which changes readily into vapour without heating is called ?(a)efflorescent

(b) synthetic(c) volatile

(d) effervescent

13. Catalytic properties of a substance may be best defined as a phenomenon of ?(a) Absorption

(b) Chemisorption(c) Adsorption

(d) None of these

14. In which of the following processes light energy is converted into chemical energy?

(a)Respiration

(b) Fermentation(c)Photosynthesis

(d)Photorespiration

15. Photosynthesis is?(a) an exothermic process

(b) an endothermic process


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(c) a neutral process(d) a thermostatic process

16. Combustion is the process in which ?

(a) heat is produced.

(b) light is produced.(c) heat and light are produced.(d) None of these

17. The chemical used as a fixer in photography is

(a) borax(b) sodium thiosulphate

(c) sodium sulphate(d) ammonium persulphate

18. The rate of chemical reaction does not depend upon ?

(a) Concentration(b) Catalyst(c)Temperature

(d) Pressure

19. Which of the following is a chemical change?(a) Magnetisation of iron

(b)Melting of ice(c) Burning of sulphur

(d)Melting of wax

20. Which of the following substances undergoes chemical change on heating?(a) Sodium chloride

(b) Silica(c) Lead nitrate

(d) Platinum wire

21. Water is neither acidic nor alkaline because

(a) it cannot accept or donate protons.(b) it boils at a high temperature.

(c) it can dissociate into equal number of hydrogen ions.(d) it cannot donate or accept electrons.

22. Chemical change does not take place in case of?

(a) souring of milk into curd(b) rusting of iron in atmosphere

(c) burning of magnesium ribbon in air(d) emitting of light by a red hot platinum wire


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23. Vulcanization is a ?(a) science of studying volcanoes

(b) method to degrade polymers(c) process connected with the making of voltaic cells

(d) process of hardening of robber by heating it with sulphur

24. Which of the following causes the rusting of iron?1. Oxidation

2. Reduction3. Chemical reaction with oxygen

4. Chemical reaction with CO(a) l and 2

(b) 2 and 3(c) 3 and 4

(d) l and 3

25. Which of the following statements is/are true?1. The process of oxidation leads to a gain of electrons.

2. The process of oxidation leads to a Toss of electrons.3. The process of reduction leads to a gain of electrons.

4. The process of reduction leads to a loss of electrons.(a) l only

(b) l and 4(c) 2 and 3

(d) 4 only

26. Light year is a unit of measurement of

(a) speed of light

(b) stellar distances(c) speed of rockets

(d) speed of aero planes

27. One micron is equal to(a) 1/10th of nm

(b) 1/100th of nm(c) 1/1000th of nm

(d) 1/10000th of nm

28. Hydrometer is an instrument

(a) for measuring sound under water(b) to detect the presence of hydrogen in the atmosphere

(c) for measuring the specific gravity of liquids(d) to detect the changes in atmospheric humidity


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29. Bar is the unit of ?(a) heat

(b) temperature(c) current

(d) atmospheric pressure

30. A chronometer measures(a) sound waves

(b) time(c) water waves

(d) colour contrast

31.One fathom is equal to?(a) 6 meters

(b) 6 feet(c) 60 feet

(d) 100 cms

32. What is the unit for. measuring the pitch or frequency of sound?

(a)Coulomb(b) Hum

(c) Cycles(d) Hertz

33. Electric current is measured by

(a) anemometer(b) voltmeter

(c)ammeter(d) commutator

34. Fathom is the unit of ?

(a) sound(b) depth

(c) distance(d) frequency

35. Kilohertz is a unit which measures(a) electric resistance

(b) power used by a current of one ampere(c) electromagnetic radio wave frequencies

(d)None of these

36. If you swim one km, how many miles do you swim?(a) 0.5

(b) 0.62


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(c) 0.84(d) 1.6

37. Kilowatt is a unit to measure

(a)work

(b) electricity(c) power(d)current

38. Very small time intervals are accurately measured by the

(a) Pulsars(b) Quartz clocks

(c) Atomic clocks(d) White dwarfs

39. Decibel is the unit used for

(a) speed of light(b) intensity of heat(c) intensity of sound

(d) radio wave frequency

40. Which of the following is correct regarding the barometer commonly used in homes to seeweather indication?

1. It is called Furlins barometer and uses mercury.2. It is called Furlins barometer and uses alcohol.

3. It is called aneroid barometer and uses mercury.(a)1

(b) 2(c) 3

(d) None

Answers:

1d

2b3a

4d5b

6c7c

8d9c

10a11c

12c13c


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14c15b

16c17b

18d

19c20c21c

22d23d

24c25c

26b27c

28c29d

30b31b

32d33c

34b35c

36b37c

38c39c

40d

General Science Quiz - Multiple Choice

Questions with Answers

Article Number: 7248 | Last Updated: Sun, Nov 22, 2009 at 12:16 PM Here are some General

Science Quiz Questions along with answers to increase your general knowledge about science.Which instrument is used to measure pressure?

1.

a. Saccharimeterb. Ammeterc. Manometerd. Lactometer


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2. What does Angstrom measure?a. Quantity of liquidb. Length of light wavesc. Length of cablesd. Speed of ships

3. Light year is related toa. Energyb. Speedc. Distanced. Intensity

4.

Match the following columns

Column 1 Column 2

A. Relative 1. Pyrometer humidity

B. Anemometer 2. High temperature

C. Navigation 3. Hygrometer

D. Direction of wind 4. Chronometer

1 2 3 4

a. B D A C

b.D B A C

c. A D B C

d. C A D B

5.6. Which of the following instruments is used to measure pressure of gases?

a. Barometerb. Manometerc. Ammeterd. None of these

7. Joule is the unit ofa. Temperature pressureb. Energyc. Heat


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8. How many Dynes are there in one gram weight?a. 900b. 375c. 981d. 250

9. How many Ergs are these in 1 Joule?a. 102b. 104c. 106d. 107

10.The unit of current isa. Ohm

b. Wattc. Ampered. None of these

11.The unit of energy in MKS system isa. Voltb. Ergc.

Ohmd. Joule

12.The intensity of an earthquake is measured with aa. Barometerb. Hydrometerc. Polygraphd. Seismograph

13.Centigrade & Fahrenheit scales give same reading ata. - 40b. - 32c. - 273d. - 100


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14.Match the following columnsColumn 1 Column 2

A. Anemometer 1. To measure underwater depth using soundB. Aneroid barometer 2. To measure very small distances

C. Micrometer 3. Find out wind speed

D. Fathometer 4. Find out direction of wind

5. Measure atmospheric pressure

1 2 3 4

a. A4 B5 C3 D1

b. A3 B5 C2 D1

c. A5 B1 C3 D4

d. A3 B1 C5 D2

15.16.Who among the following described protoplasm as the physical basis of life?

a. T. H. Huxleyb. Leeuwenhoekc. Rudolf Virchowd. J. C. Bose

17.The scientist who first discovered that the earth revolves round the sun wasa. Newtonb. Daltonc. Copernicusd. Einstein

18.Alexander Fleming discovereda. Penicillinb. X-rayc. Streptomycind. Telephone

19.Who among following invented the steam engine?a. Marconib. James Watt


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c. Thomas Saveryd. Wright Brothers

20.Who invented typewriter?a. Shockley

b. Pascalc. Sholesd. Waterman

21.Match the following columns:Column 1 Column 2

A. Proton 1. ChadwickB. Neutron 2. Millikan

C. Charged Electron 3. Goldstein

D. Shelled nature of atom 4. Rutherford

5. Madam Curie

a. A1 B2 C3 D5

b. A2 B1 C4 D3

c. A2 B3 C1 D4

d. A4 B2 C3 D1

22.23.Who discovered circulation of blood in human body?

a. Edward Jennerb. Joseph Listerc. William Harveyd. Jonon Esals

24.The first attempt in printing was made in England bya. James Arkwrightb. James Wattc. William Caxtond. Isaac Newton

25.Who was the surgeon who pioneered antiseptic surgery in 1865?


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a. Edward Jennerb. Joseph Listerc. Henry Williamd. John Sleeman

26.The credit of inventing the television goes toa. Faradayb. Bairdc. Edisond. Marconi

27.The credit of developing the polio vaccine goes toa.

Jonas Salkb. Alb E. Sabin

c. Selman Waksmand. None of these

28.Mark the wrong combinationa. James Watt: Steam Engineb. A.G. Bell: Telephonec. J. L. Baird: Televisiond.

J. Perkins: Penicillin

29.Choose the correct combinationa. Typewriter: Remingtonb. Dynamite: Dunlopc. Evolution: Darwind. Aeroplane: Harway

30.Who invented the ball point pen?a. Watermanb. Oscarc. Wilsond. Lazlo Biro


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31.Blaze Pascal is associated witha. Calculating machineb. Computerc. Cinemad. None of these

32.Wright Brothers are regarded inventors of thea. Balloonb. Bicyclec. Aeroplaned. None of these

33.Which of the following pairs is incorrect?a. Roentgen: X-ray

b. Newton: Law of gravitationc. Faraday: Diffusion of gasesd. Pasteur: Bacteriology

34.Philology is thea. Study of bonesb. Study of musclesc.

Study of architectured. Study of languages

35.Anatomy is the branch of science which deals witha. Structure of animals and plantsb. Functioning of body organsc. Animal behaviord. Cells and tissues

36.Study of earthquakes is known asa. Ecologyb. Seismologyc. Numismaticsd. None of these


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d. Genetics of plants

43.Ornithology is thea.

Study of bonesb. Study of birds

c. Study of smellsd. None of these

44.Who invented the Doctors thermometer?a. Fahrenheitb. Edisonc. Galileod.

None of these

45.The velocity of light was first measured bya. Einsteinb. Newtonc. Romerd. Galileo

46.Who proposed the chemical evolution of life?a. Darwinb. Lammarckc. Oparind. Haechel

47.The telephone was invented bya. John Logie Bairdb.

Alexander Graham Bellc. Thomas Elva Edison

d. James Watt

48.Who among the following evolved the concept of relationship between mass and energy?a. Einstein


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b. Planckc. Daltond. Rutherford

49.Match the following columns:Column 1 Column 2

A. Radioactivity 1. Planck

B. Periodic Table 2. Thomson

C. Quantum Theory 3. Rutherford

D. X-Rays 4. Mendeleev

5. Roentgen

6. Becquerel

a. A1 B3 C5 D2

b. A6 B5 C3 D5

c. A3 B2 C1 D5

d. A6 B4 C1 D5

50.51.Match the following columns:

Column 1 Column 2

A. Marconi 1. RadioB. Darwin 2. Natural selection theory

C. Laennec 3. Orthogenesis theory

D. Baird 4. Stethoscope

5. Television

a. A1 B3 C4 D5

b. A5 B4 C3 D2

c. A1 B2 C4 D5

d. A3 B5 C2 D

48.Robert Koch worked ona. Tuberculosisb. Cholerac. Malariad. Diabetes


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49.Who discovered Uranus?a. Herschelb. Ganleoc. Copernicusd. None of these

50.Who among the following is associated with the invention of computers?a. Edisonb. Babbagec. Mac Millend. Rangabhashyam

Answers to General Science Quiz Questions

1. c 2. d 3. c 4. a 5. b6. c 7. c 8. d 9. c 10. d

11. d 12. a 13. b 14. a 15. c

16. a 17. b 18. c 19. c 20. c

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

26. c 27. d 28. a 29. c 30. c

31. d 32. a 33. b 34. c 35. a

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

41. a 42. c 43. c 44. b 45. a

46. d 47. c 48. a 49. a 50. b

model test paper rrb exam general science life sciences

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