Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 1

SREENIVASA INSTITUTE OF TECHNOLOGY AND

MANAGEMENT STUDIES

Murukambattu Post, Chittoor – 517 127 (A.P)

AFFILIATED TO JAWAHARLAL NEHRU TECHNOLOGICAL

UNIVERSITY –

ANANTAPUR,

Course material

For

Reasoning and Quantitative Aptitude

Module Name: ASSERTION & REASON

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 2

MODULE OBJECTIVE:

This Test is meant to judge the candidate’s knowledge and with it, his ability to reasonout correctly. In this test, two statements referred to as the Assertion (A) and Reason (R)respectively are provided. Five alternative comments on these are given and the correctone is to be chosen.

PREREQUISITES:

Knowledge of English and common sense are needed.

SOLVED EXAMPLES:

DIRECTIONS: For the Assertions (A) and Reasons (R) below, choose the correctalternative from the following:

(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true and R is NOT the correct explanation of A.(c) A is true but R is false.(d) A is false but R is true.(e) Both are false.

1. Assertion (A) : Moon cannot be used as a satellite for communication. Reason (R) : Moon does not move in the equatorial plane of the earth.Ans: (a) since R explains A.

2. Assertion (A) : Salt is added to cook food at higher altitudes. Reason (R) : Temperature is lower at higher altitudes.Ans: (b) because both statements A and R are separately true but R does not explain A.

3. Assertion (A) : Ventilators are provided near the roof. Reason (R) : Conduction takes place better near the roof.Ans: (c) since only statement A is true while R is a wrong statement.

4. Assertion (A) : Beriberi is a viral infection. Reason (R) : Vitamin deficiency causes diseases.Ans: (d) since the statement A is false and only R is true.

5. Assertion (A) : Bulb filament is made of Titanium. Reason (R) : The filament should have low melting point.Ans: (e) since both the statement A and R are false.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 3

6. Assertion (A) : Carbon monoxide when inhaled causes death. Reason (R) : Carbon monoxide combines with hemoglobin.Ans: (a) since R explains A.

7. Assertion (A) : We feel colder on mountains than plains. Reason (R) : Temperature decreases with altitude.Ans: (a) since R explains A.

8. Assertion (A) : Inside the earth metals are present in molten state. Reason (R) : Earth absorbs the sun’s rays.Ans: (c) since A is true but R is false.

9. Assertion (A) : There is no vaccine for AIDS. Reason (R) : The AIDS virus changes its genetic code.Ans: (a) R is the correct explanation for A.

10. Assertion (A) : Clothes are not washed properly in hard water. Reason (R) : Hard water contains many minerals.Ans: (b) R is not the correct explanation for A.

11. Assertion (A) : In India, people elect their own representatives. Reason (R) : India is a democracy.Ans: (a) R is correct explanation for A.

12. Assertion (A) : Vaccines prevent diseases. Reason (R) : Vaccines must be given to children.Ans: (b) R is not the correct explanation of A.

13. Assertion (A) : Downpour of rain lessens the humidity in the atmosphere. Reason (R) : Rains are caused when atmosphere cannot hold more moisture.Ans: (d) A is false but R is true.

14. Assertion (A) : Unpolished rice should be eaten. Reason (R) : Polished rice lacks vitamin B.Ans: (a) R is the correct explanation of A.

15. Assertion (A) : Bats can fly in the night. Reason (R) : Bats emit ultrasonics.Ans: (a) R is the correct explanation of A.

16. Assertion (A) : Razia Sultan was the daughter of Illtutmish. Reason (R) : Illtutmish was a rebel.Ans: (c) A is true but R is false.

17. Assertion (A) : Silver is not used to make electric wires.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 4

Reason (R) : Silver is a bad conductor.Ans: (c) A is true but R is false.

18. Assertion (A) : Gandhiji withdrew the non-cooperation movement. Reason (R) : There was violence at the Chaurichaura outrage.Ans: (a) R is the correct explanation of A.

EXERCISE PROBLEMS:

1. Assertion (A) : Carbon forms the largest number of compounds. Reason (R) : Carbon has the catenation property.Ans: (d) R is true but A is false.

2. Assertion (A): Uttar Pradesh is called the ‘Sugar bowl’ of India. Reason (R): Uttar Pradesh is the leading producer of Sugarcane.Ans: (a) R is the correct explanation of A.

3. Assertion (A) : When the bus starts, the person inside it falls forward. Reason (R) : The bus pushes the man forward.Ans: (e) Both A and R are false.

4. Assertion (A) : Glass tumbler breaks in winter when hot water is poured in it. Reason (R) : When hot water is poured, the outer surface of glass expands.Ans: (c) A is true but R is false.

5. Assertion (A) : Red color of blood is due to haemoglobin. Reason (R) : Haemoglobin is a red pigment.Ans: (a) R is the correct explanation of A.

6. Assertion (A) : Carbohydrates provide energy to the body. Reason (R) : Obesity is caused by excessive intake of carbohydrates.Ans: (c) A is true but R is false.

7. Assertion (A) : Nuclear fusion is used to generate electricity.Reason (R) : Nuclear power is not used because it cannot be controlled.

Ans: (e) Both A and R are false.

8. Assertion (A) : River Narmada flows westward. Reason (R) : Narmada falls into the Bay of Bengal.Ans: (c) A is true but R is false.

9. Assertion (A) : Cotton is grown in alluvial soils. Reason (R) : Alluvial soils are very fertile.Ans: (d) A is false but R is true.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 5

10. Assertion (A) : In India, females have higher life expectancy than the males. Reason (R) : Females receive a better diet.Ans: (e) Both A and R are false.

11. Assertion (A) : The India Constitution came into force with effect from 26th January,1950. Reason (R) : 26th January as celebrated as the Republic Day.Ans: (b) R is not the correct explanation for A.

12.Assertion (A): Appendix is a vestigial organ in human body. Reason (R): It does not participate in digestion.Ans: (a) R is correct explanation of A.

13. Assertion (A) : Himalayas once laid under the sea. Reason (R) : Fossils of marine creatures are traced on the Himalayas.Ans: (a) R is correct explanation of A.

14. Assertion (A) : Shivaji developed the guerilla warfare. Reason (R) : Shivaji feared the Mughals,Ans: (c) A is true but R is false.

15. Assertion (A) : Legumes revive the soil fertility. Reason (R) : microbes in the root nodules of legumes fix the atmospheric nitrogen.Ans: (a) R is correct explanation of A.

16. Assertion (A) : Cut fruits and vegetables should not be kept in open for long. Reason (R) : Their vitamin content is ruined.Ans: (a) R is correct explanation of A.

17. Assertion (A) : An atom is neutral despite the charged particles in it. Reason (R) : The neutrons do not have any charge.Ans: (b) R is not the correct explanation of A.

18. Assertion (A) : Bangladesh imports jute from India. Reason (R) : Bangladesh has most of the jute mills.Ans: (e) Both A and R are false.

19. Assertion (A) : The steam engine was invented by James Watt. Reason (R) : There was a problem of taking out water from flooded mines.Ans: (a) R is correct explanation of A

20. Assertion (A) : Increase in carbon dioxide would melt polar ice. Reason (R) : Global temperature would rise.Ans: (a) R is correct explanation of A.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 6

21. Assertion (A) : Tamil Nadu gets most of the rain fall in winter. Reason (R) : Tamil Nadu gets rainfall from retreating monsoons.Ans: (a) R is correct explanation of A.

22. Assertion (A) : Graphite is slippery and used as a lubricant. Reason (R) : Graphite has free electrons.Ans: (b) R is not correct explanation of A.

23. Assertion (A) : In India, the judiciary is independent of the executive. Reason (R) : Judiciary favours the government and helps in the implementation ofits plans.Ans: (c) A is true but R is false.

24. Assertion (A) : An iron ball floats on mercury but gets immersed in water. Reason (R) : The specific gravity of iron is more than that of mercury.Ans: (c) A is true but R is false.

25. Assertion (A) : Copper is used to make electric wires. Reason (R) : Copper has very low electrical resistance.Ans: (a) R is the correct explanation of A.

26. Assertion (A) : Uranium undergoes nuclear fusion reaction. Reason (R) : It has a big, unstable nucleus.Ans: (d) A is false but R is true.

27. Assertion (A) : A little gap is left between iron rails. Reason (R) : Iron expands in summer.Ans: (a) R is the correct explanation of A.

28. Assertion (A) : When common salt is kept open, it absorbs moisture from the air. Reason (R) : Common salt contains magnesium chloride.Ans: (a) R is the correct explanation of A.

29. Assertion (A) : When a body is dipped in a liquid fully or partially, there is a decreasein its weight. Reason (R) : The decrease in weight is due to the higher density of the displacedliquid.Ans: (c) A is true but R is false.

30. Assertion (A) : Baking soda creates acidity in the stomach. Reason (R) : Baking soda is alkaline.Ans: (d) A is false but R is true.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 7

31. Assertion (A) : Most of the Himalayan rivers are perennial. Reason (R) : They are fed by melting snow.Ans: (a) R is the correct explanation of A.

32. Assertion (A) : Amoebiasis is an occupational disease. Reason (R) : Amoebiasis is caused by inhalation of asbestos dust.Ans: (e) Both A and R are false.

33. Assertion (A) : Plaster of Paris is used by doctors for setting fractured bones. Reason (R) : When Plaster of Paris is mixed with water and applied around thefractured limbs, it sets into a hard mass.Ans: (a) R is the correct explanation of A.

34. Assertion (A) : The use of chloro fluoro carbons is banned throughout the world now-a- days. Reason (R) : These chemicals cause skin cancer.Ans: (c) A is true but R is false.

35. Assertion (A) : Bronze is used for making statues. Reason (R) : Bronze is an alloy of copper and tin.Ans: (b) R is not the correct explanation of A.

36. Assertion (A) : India is facing the problem of inflation. Reason (R) : We have failed to check the growth of black money.Ans: (a) R is the correct explanation of A.

37. Assertion (A) : Leaves of plants are green. Reason (R) : Plants contain chromoplasts, the green pigment.

Ans: (c) A is true but R is false.

38. Assertion (A) : We prefer to wear white clothes in winter. Reason (R) : White clothes are good reflectors of heat.Ans: (d) A is false but R is true.

39. Assertion (A) : Leakages in household gas cylinders can be detected. Reason (R) : LPG has a strong smell.Ans: (c) A is true but R is false.

40. Assertion (A) : Simla is colder than Delhi. Reason (R) : Simla is at a higher altitude as compared to Delhi.Ans: (a) R is the correct explanation of A.

41. Assertion (A) : Land breeze blows during night. Reason (R) : Land gets heated up quickly.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 8

Ans: (b) R is not the correct explanation of A.

42. Assertion (A) : The freezing of sea water during winter does not kill the fishes. Reason (R) : Only surface water is frozen.Ans: (a) R is the correct explanation of A.

43. Assertion (A) : We feel comfortable in hot and humid climate. Reason (R) : Sweat evaporates faster in humid climate.Ans: (e) Both A and R are false.

44. Assertion (A) : Mohammad-bin-Tughlaq is called the ‘wisest fool’. Reason (R) : He had wise plans but implemented them foolishly.Ans: (a) R provides correct explanation for A.

45. Assertion (A) : Weeds should not be allowed to grow along with the crops. Reason (R) : Weeds leave no space for plants to grow.Ans: (c) A is true but R is false.46. Assertion (A) : Carbon dioxide turns lime water milky. Reason (R) : Carbon dioxide sullys the water.Ans: (e) Both A and R are false.

47. Assertion (A) : Diamond is used for cutting glass. Reason (R) :Diamond has a high refractive index.Ans: (b) R is not the correct explanation of A.

48. Assertion (A) : Telephone wires sag more in summer. Reason (R) : They expand due to summer heat.Ans: (a) R is the correct explanation of A.

49. Assertion (A) : Eskimos reside in igloos. Reason (R) : No other material except snow is available.Ans: (c) A is true but R is false.

50. Assertion (A) : India democratic. Reason (R) : India has a Constitution of its own.Ans: (b) R is not the correct explanation of A.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 9

QUESTION BANK:

DIRECTIONS: For the Assertions (A) and Reasons (R) below, choose the correctalternative from the following:

(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true and R is NOT the correct explanation of A.(c) A is true but R is false.(d) A is false but R is true.(e) Both are false.

1. Assertion (A) : Pressure cookers are fitted with ebonite handles. Reason (R) : Ebonite is strong.Ans: (c) A is true but R is false.

2. Assertion (A) : Water kept in earthern pots gets cooled in summer. Reason (R) : Evaporation causes cooling.Ans: (a) R is the correct explanation of A.

3. Assertion (A) : Safety fuses are made up of materials having a high melting point. Reason (R) : Safety fuses should be resistant to electric current.Ans: (e) Both A and R are false.

4. Assertion (A) : Pluto is the coldest planet. Reason (R) :It receives slanting rays of the sun.Ans: (c) A is true but R is false.

5. Assertion (A) : In the upper course, the main work of the river is erosion. Reason (R) : River flows swiftly in the upper course.Ans: (a) R is the correct explanation of A.

6. Assertion (A) : Most of the ancient civilizations grew near the rivers. Reason (R) : The main occupation of man was agriculture.Ans: (b) R is not the correct explanation of A.

7. Assertion (A) : Buddha left home after his marriage. Reason (R) : He wished to be free of all worldly ties and become an ascetic.Ans: (a) R is the correct explanation of A.

8. Assertion (A) : Food materials should not be soaked in water for a long time. Reason (R) : Washing leads to loss of vitamin A and Vitamin D from the foodstuff.Ans: (c) A is correct but R is false.

9. Assertion (A) : Earthworms are not good for agriculture. Reason (R) : Earthworms break down the soil into fine particles and make it soft.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 10

Ans: (d) A is false but R is true.

10. Assertion (A) : DDT has now a days lost its use as an insecticide. Reason (R) : DDt is harmful to man.Ans: (b) R is not the correct explanation of A.

11. Assertion (A) : Seeds should be treated with fungicide before sown. Reason (R) : Seeds do not germinate, unless treated with fungicide solution.Ans: (c) A is true but R is false.

12. Assertion (A) : The body of fish is streamlined. Reason (R) : The streamlined body helps the fish to cut its way through the water.Ans: (a) R is the correct explanation for A.

13. Assertion (A) : Milk production in India is low as compared to other countries of theworld. Reason (R) : The animal bearers in India are poor.Ans: (c) A is true but R is false.

14. Assertion (A) : Sprouting should not be done before consuming the grains. Reason (R) : Sprouting kills many vital vitamins.Ans: (e) Both A and R are false.

15. Assertion (A) : Goitre is a common disease in mountainous regions. Reason (R) : the diet of the people in mountains lacks iodine content.Ans: (a) R is the correct explanation of A.

16. Assertion (A) : Roughage prevents constipation. Reason (R) :Roughage adds bulk to the food.Ans: (a) R is the correct explanation of A.

17. Assertion (A) : India has a tropical monsoon type climate. Reason (R) : India is located exactly between the tropical latitudes.Ans: (c) A is true but R is false.

18. Assertion (A) : Africa has one of the largest water power potential in the world. Reason (R) : a large number of hydel power projects have been constructed inAfrica.Ans: (c) A is true but R is false.

19. Assertion (A) : Aurangageb, failed in his Decean policy. Reason (R) : He could not follow the policy of appeasement.Ans: (a) R is the correct explanation of A.

20. Assertion (A) : For the production of aluminum, cheap electricity is essential.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 11

Reason (R) : Extraction of aluminum from its ore requires abundant supply ofelectricity.Ans: (a) R is the correct explanation of A.

21. Assertion (A) : Mercury is the farthest planet from the sun. Reason (R) : Mercury is the smallest planet in the entire solar system.Ans: (d) A is false but R is true.

22. Assertion (A) : Asoka pillars have retained their gloss on their surface. Reason (R) : Moisture laden winds do not blow in the areas where it is located.Ans: (c) A is true but R is false.

23. Assertion (A) : Photosynthesis takes place in all green plants. Reason (R) : Chlorophyll is essential for photosynthesis.Ans: (b) R is not the correct explanation of A.

24. Assertion (A) : Buddha preached four noble. Reason (R) : He wanted to remove desire, which is the cause of human sorrow andmisery.Ans: (a) R is the correct explanation of A.

25. Assertion (A) : Akbar founded Din-e-Ilahi. Reason (R) : He was motivated by self glorification.Ans: (c) A is true but R is false.

26. Assertion (A) : Indian Forest Service is one of the All India Services. Reason (R) : Only three services are All India services.Ans: (c) A is true but R is false.

27. Assertion (A) : Winds are deflected to their right in Northern Hemisphere and to theleft in the Southern Hemisphere. Reason (R) : rotation of earth causes the changes in wind direction.Ans: (a) R is the correct explanation of A.

28. Assertion (A) : Red green colour blindness occurs with more frequency in males thanin females. Reason (R) : Females have two chromosomes and males have one.Ans: (a) R is the correct explanation of A.

29. Assertion (A) : Noise pollution is unwanted accumulation of noise in the atmosphere. Reason (R) : It interferes with communication.Ans: (a) R is the correct explanation of A.

30. Assertion (A) : Forest cutting is undesirable from the point of view of soil erosion.

Reasoning and Quantitative Aptitude Assertion and Reason

SITAMS 12

Reason (R) : Cutting of forests reduces the interception of rain water.Ans: (a) R is the correct explanation of A.

31. Assertion (A) : Indus Valley people knew the art navigation. Reason (R) : Indus Valley seals indicate prevalence of overseas trade. Ans: (a) R is the correct explanation of A.

32. Assertion (A) : The western coast of India is characterized by the location of severalsea ports. Reason (R) : Western coast has evidence of deep sea water.Ans: (a) R is the correct explanation of A.

33. Assertion (A) : On the equinoxes, the day and night are equal all over the globe. Reason (R) : On equinoxes, the position of earth with respect to the sun is such that

neither pole is inclined towards the sun.Ans: (a) R is the correct explanation of A.

34. Assertion (A) : A person with blood type O is considered a universal recipient. Reason (R) : Type O blood does not contain any antigens.Ans: (d) A is false but R is true.