GK in English

GK Chapterwise – CDS Previous Year Papers

Table of Contents

41. Which of the following is a rich source of energy?

(b) Lipid
(c) Carbohydrate
(d) Vitamin
Ans: (c)

CDS (II) 2011

42. In human beings, the opening of the stomach into the small intestine is called

(b) ileum
(c) oesophagus
(d) pylorus
Ans: (d)

CDS (I) 2013

43. Between which one of the following sets of blood groups, is the blood transfusion possible?

(a)A and O
(b) B and A
(c) A and AB
(d) AB and O
Ans: (c)

CDS (II) 2017

44. Which one of the following diseases is caused by virus?

(b) Typhoid
(c) Influenza
(d) Diphtheria
Ans: (c)
CDS Exam (II) 2015

45. Malaria in the human body is caused by which one of the following organisms?

(b) Virus
(c) Mosquito
(d) Protozoan
Ans: (d)

CDS (II) 2019

46. Sweating during exercise indicates operation of which one of the following processes in the human body?

(b) Phagocytosis
(c) Homeostasis
(d) Osmoregulation
Ans: (c)

CDS (I) 2012

47. Which one of the following plants is preferred for mixed cropping in order to enhance the bioavailability of nitrogen?

(b) Gram
(c) Maize
(d) Barley
Ans: (b)

CDS (II) 2007

48. Wavelengths of which of the following colour of the visible spectrum of light are maximally absorbed by green plants?

(a)Green and Yeilow
(b) Red and Blue
(c) Green and Red
(d) Blue and Yellow
Ans: (b)
CDS Exam (II) 2009

49. Match the following Lis t I Lis t II
(Medicinal Product) (Source)
A. Quinine 1. Poppy plant
B. M orphine 2. Bacterium
C. Penicillin 3. Cinchona bark
D. Tetracycline 4. Fungus Codes A B C D

(a)3 4 1 2
(b) 2 3 1 4
(c) 3 1 4 2
(d) 2 1 3 4
Ans: (c)

CDS (II) 2018

50. Which one of the following is considered as the drug of last resort for human beings?

(b) Tetracycline
(c) Chloramphenicol
(d) Streptomycin
Ans: (c)

CDS (I) 2016

51. Match the following List-I List-II
(Vitamin) (Chemical Compound)
A. Vitamin-A 1. Thiamine
B. Vitamin-B1 2. Retinol
C. Vitamin-C 3. Ascorbic acid
D. Vitamin-E 4. Tocopherol Codes A B C D

(a)4 1 3 2
(b) 2 3 1 4
(c) 4 3 1 2
(d) 2 1 3 4
Ans: (d)
CDS Exam (I) 2008

52. Which one of the following is an example of vestigial organ in man?

(a)Jaw apparatus
(b) Ear muscles
(c) Canine teeth
(d) Humerus
Ans: (b)
CDS Exam (II) 2010

53. Which one of the following is a freeliving bacterium that helps in nitrogen fixation in soil?

(b) Anabaena
(c) Azolla
(d) Nostoc
Ans: (a)

CDS (II) 2015

54. Bryophytes are photosynthetic but do not have vascular tissue and true roots. This feature enables them to resemble with which of the following?

(b) Algae
(c) Pteridophytes
(d) Angiosperms
Ans: (b)

CDS (I) 2011

55. The genetically engineered ‘Golden Rice’ is rich in which of the following?

(a)Vitamin-A and nicotinic acid
(b) b-carotene and folic acid
(c) b-carotene and iron
(d) Vitamin-A and niacin
Ans: (c)
CDS Exam (I) 2013

56. The branches of this tree root themselves like new trees over a large area. The roots then give rise to more trunks and branches. Because of this characteristic and its longevity, this tree is considered immortal and is an integral part of the myths and legends of India. Which tree is this?

(b) Neem
(c) Tamarind(Imli)
(d) Peepal
Ans: (a)

CDS (II) 2015

57. Consider the follwing statement about bioremediation.
1. It may be defined as any process that uses microorganisms or their enzymes to return the environment altered by contaminants to its original condition.
2. Bioremediation may be employed in order to attack specific contaminants, such as chlorinated pesticides that are degraded by bacteria. Which of the statements given above is/are correct?

(a)Only 1
(b) Only 2
(c) 1 and 2
(d) Neither 1 nor 2
Ans: (c)

CDS (I) 2019

58. Which one of the following is responsible for the stimulating effect of tea?

(b) Steroid
(c) Alkaloid
(d) Flavonoid
Ans: (c)
CDS Exam (I) 2012

59. Which one of the following is present in chlorophyll which gives a green colour to plant leaves?

(b) Magnesium
(c) Iron
(d) Manganese
Ans: (b)

CDS (I) 2007

60. Which one of the following characteristics is common among parrot, platypus and kangaroo?

(b) Toothless jaws
(c) Homothermy
(d) Functional postanal tail
Ans: (c)

CDS (II) 2009

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