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GK Chapterwise – CDS Previous Year Papers

Table of Contents

21. Which one of the following is not an insect borne disease?

(b) Kala-azar
(c) Malaria
(d) Plague
Ans: (a)
CDS Exam (I) 2007

22. Which of the following nutrients is not a structural component of the plant?

(b) Calcium
(c) Phosphorus
(d) Potassium
Ans: (d)
CDS Exam (II) 2009

23. Dim-vision in the evening and night results from the deficiency of which one of the following?

(b) Vitamin-E
(c) Vitamin-B12
(d) Vitamin-C
Ans: (a)

CDS (II) 2018

24. The persons working in textile factories such as carpet weavers are exposed to which of the following occupational diseases?

(b) Asthma and tuberculosis
(c) Silicosis
(d) Siderosis
Ans: (b)

CDS (I) 2016

25. Which one among the following kinds of organisms resides in the roots of pulse plants to do nitrogen fixation?

(b) Fungi
(c) Protozoa
(d) Virus
Ans: (a)
CDS Exam (I) 2008

26. Cloves, used as a spice, are derived from which of the following plant parts?

(b) Fruits
(c) Flower buds
(d) Young leaves
Ans: (c)

CDS (I) 2010

27. The characterisitic odour of garlic is due to which one of the following?

(a)Chlorine-containing compounds
(b) Fluorine-containing compounds
(c) Nitrogen-containing compounds
(d) Sulphur-containing compounds
Ans: (d)

CDS (II) 2015

28. What does airbag, used in safety of car driver, contain?

(a)Sodium bicarbonate
(b) Sodium azide
(c) Sodium nitrite
(d) Sodium peroxide
Ans: (b)

CDS (I) 2011

29. Which colour of heat radiation represents the highest temperature?

(a)Blood red
(b) Dark cherry
(c) Salmon
(d) White
Ans: (d)
CDS Exam (I) 2013

30. Which one of the following is correct? A concrete wall generally?

(a)only reflects sound
(b) only absorbs sound
(c) only transmits sound
(d) absorbs and transmits sound
Ans: (d)

CDS (I) 2017

31. Assertion (A): Red blood cells burst when placed in water.
Reason (R): Due to osmosis, water enters into red blood cells.

(a)Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Ans: (a)

CDS (II) 2015

32. In human body, what is the number of cervical vertebrae?

(b) 7
(c) 8
(d) 12
Ans: (b)

CDS (I) 2019

33. The terms lubb and dubb relates to which one of the following?

(b) Eyes
(c) Teeth
(d) Lungs
Ans: (a)
CDS Exam (I) 2012

34. In normal adult human, what is the rate of heart beat per minute?

(b) 70-75
(c) 80-97
(d) 82-87
Ans: (a)

CDS (I) 2007

35. Which one of the following is considered as the easily digestible source of protein?

(a)Egg albumin
(b) Soyabean
(c) Fish flesh
(d) Red meat
Ans: (a)

CDS (II) 2009

36. Which of the following plants is not capable of manufacturing its own food?

(b) Mushroom
(c) Carrot
(d) Cabbage
Ans: (b)
CDS Exam (II) 2018

37. Which one of the following is responsible for converting milk into curd?

(b) Bacteria
(c) Virus
(d) None of these
Ans: (b)
CDS Exam (I) 2016

38. Which one of the following is a major constituent of biogas?

(a)Carbon dioxide
(b) Methane
(c) Hydrogen
(d) Nitrogen dioxide
Ans: (b)

CDS (I) 2008

39. Which chamber of human heart pumps fully oxygenated blood to aorta and thence to the body?

(a)Right auricle
(b) Left auricle
(c) Right ventricle
(d) Left ventricle
Ans: (d)

CDS (II) 2010

40. By using which one of the following techniques, is DNA fingerprinting done?

(b) RIA
(c) Northern Blotting
(d) Southern Blotting
Ans: (d)
CDS Exam (II) 2015

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