CDS General Knowledge Exam Paper – 15 February 2015

Combined Defense Services (CDS) General Knowledge solved exam paper conducted by UPSC on 15 February 2015 available here. UPSC organizes CDS Exam twice in a year. This is a first CDS exam paper of year 2015. CDS exam will consist of three papers – English, General Knowledge and Elementary Mathematics.

Exam Paper :— (CDS) General Knowledge
Exam Organizer :— Union Public Service Commission (UPSC)
Exam Date :— 15 February 2015

(See other paper of this exam – English Paper)
[ This exam paper also available in Hindi language. ]

CDS (General Knowledge) solved exam paper (1^st) 2015

1. In human digestive system, the process of digestion starts in –
A. Oesophagus
B. Buccal cavity
C. Duodenum
D. Stomach

2. Consider the contour plot given below :

The above contours of an area indicate several relief features. Which one among the following relief features is not depicted here ?
A. steep slope
B. river valley
C. conical hill
D. gentle slope

3. Which one among the following fuels is used in gas welding ?
A. LPG
B. ethylene
C. methane
D. acetylene

4. In respect of the difference of the gravitational force from electric and magnetic forces, which one of the following statements is true ?
A. gravitational force is stronger than the other two
B. gravitational force is attractive only, whereas the electric and the magnetic forces are attractive as well as repulsive
C. gravitational force has a very short range
D. gravitational force is a long range force, while the other two are short range forces

5. Which one among the following is a micro-nutrient present in soil for various crops ?
A. calcium
B. manganese
C. magnesium
D. potassium

6. Arrange the following tributaries of river indus from north to south –
1. chenab
2. jhelum

3. ravi
4. sutlej
Select the correct answer using the code given below –
A. 4, 3, 1, 2
B. 2, 3, 1, 4
C. 1, 2, 3, 4
D. 2, 1, 3, 4

7. Match list-I with list-II and select the correct answer using the code given below the lists –
list-I (industry)              list-II (location)
a. Railway equipment  1. Kochi
b. automobile               2. Ludhiana
c. ship-building            3. Bhilai
d. bicycle                     4. Jabalpur
Code :
.   a b c d
A. 3 4 1 2
B. 3 1 4 2
C. 2 1 4 3
D. 2 4 1 3

8. Match list-I with list-II and select the correct answer using the code given below the lists –

list-I (air pollutant)       list-II (effect)
a. Chlorofluorocarbon 1. Acid rain
b. Sulfur dioxide          2. Depletion in ozone layer in the atmosphere
c. lead compound       3. Harmful for human nervous system
d. Carbon dioxide       4. Topmost contribution to greenhouse effect
Code :
.   a b c d
A. 4 3 1 2
B. 4 1 3 2
C. 2 1 3 4
D. 2 3 1 4

9. Creation of something from nothing is against the law of-
A. constant proportions
B. conservation of mass energy
C. multiple proportions
D. conservation of momentum

10. Which one of the following diseases in humans can spread through air ?
A dengue
B. tuberculosis
C. HIV- AIDS
D. goitre

11. Seismic gaps are-
A. parts of plate boundaries in oceans where tsunamis occur frequently
B. sections of plate boundaries that have ruptured repeatedly in the recent past
C. sections of plate boundaries that have not ruptured in the recent past
D. plate boundaries having no volcanic activity

12. In the absence of cold labrador current, which one among the following would happen ?
A there will be no north-east atlantic fishing grounds
B. there will be no north -west atlantic fishing grounds
C. there will be no fishing ground in the north atlantic ocean
D. semi-arid condition of the atlantic coast of the USA and canada would prevail

13. An electron and a proton are circulating with same speed in circular paths of equal radius. Which one among the following will happen. If the mass of a proton is about 2,000 times that of art electron ?
A. the centripetal force required by the electron is about 2,000 times more than that required by the proton
B. the centripetal force required by the proton is about 2,000 times more than that required by the electron
C. no centripetal force is required for any charged particle
D. equal centripetal force acts on both the particles as they rotate in the same circular path

14. Which one among the following metals is prominently used in mobile phone batteried ?
A. copper
B. zinc
C. nickel
D. lithium

15. Which one of the following is the most appropriate and correct practice from the point of view of a healthy environment ?
A. burning of plastic wastes to keep the environment clean
B. burning of dry and fallen leaves in a garden or field
C. treatment of domestic sewage before its release
D. use of chemical fertilizers in agricultural fields

16. Match list-I with list-II and select the correct answer using the code given below the lists –
list-I (type of grass) list-II (country)
a. Llanos                 1. Australia
b. Prairies               2. Venezuela
c. Pampas              3. USA
d. Downs                4. Argentina
Code :
.    a b c d
A. 1 4 3 2
B. 1 3 4 2
C. 2 4 3 1
D. 2 3 4 1

17. Who among the following proposed that atom in indivisible ?
A. Dalton
B. Berzelium
C. Rutherford
D. Avogadro

18. Tank irrigation is commonly found in south-central parts of india. What could be the reason ?
1. Insufficient shallow ground water.
2. Rocky plateau with impervious surface depression.
3. Undulating terrain helps in accumulation of rain water in depression or man-made tank.
Select the correct answer using the code given below –
A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

19. Which of the following is/are the reason (S) behind gujarat being the leading producer of salt in india ?
1. The long length of coastline
2. Long duration of hot and dry conditions
3. Presence of gulf areas
Select The correct answer using the code given below –
A. 1 and 2 only
B. 2 only
C. 1, 2 and 3
D. 1 and 3 only

20. An object is raised to a height of 3 m from the ground. It is then allowed to fall on to a table i m high from ground level. In this context, which one among the following statements is correct ?
A. its potential energy decreases by two-thirds its original value of total energy
B. its potential energy decreases by one-thirds its original value of total energy
C. its kinetic energy increases by two-thirds, while potential energy increases by one-third.
D. its kinetic energy increases by one-third, while potential energy increases by one-third.

21. Ozone layer of the earth’s atmosphere is important for living organisms because it-
A. prevents entry of ultraviolet rays
B. prevents entry of X-rays
C. maintains level of oxygen on earth
D. prevents acid rain on earth

22. If 82°30’ east longitude (Allahabad) shows 6:00 a.m. of Sunday (local time), what would by the local time of Florida (USA) located on 82° west longitude ?
A. 6 : 58 p.m. of Saturday
B. 7 : 02 p.m. of Sunday
C. 6 : 58 a.m. of Sunday
D. 7 : 02 a.m. of Saturday

23. Consider the following statements with regard to cold waves in winter season in northern india :
1. There is lack of maritime influence.
2. Northern india is nearer to the himalayan region.
3. Air mass comes from polar regions to northern india.
Which of the statements given above is/are correct ?
A. 1 only
B. 2 and 3 only
C. 1 and 3
D. 1 and 2

24. Which one among the following processes is not part of a chemical weathering ?
A. hydration
B. exfoliation
C. oxidation
D. solution

25. Two pieces of conductor of same material and of equal legnth are connected in series with a cell. One of the two pieces has cross-sectional area double that of the other. Which one of the following statements is correct in this regard ?
A. the thicker one will allow stronger current to pass through it
B. the thinner one would allow stronger current to pass through it
C. same amount of electric current would pass through both the pieces producing more heat in the thicker one
D. same amount of electric current would pass through both the pieces producing more heat in the thinner one

26. How many elements are there in the 5th period of modern periodic table ?
A. 2
B. 8
C. 16
D. 36

27. Which one of the following statements regarding water cycle is correct ?
A. transpiration by plants does not contribute to cloud formation
B. only evaporation of surface water of rivers and oceans is responsible for cloud formation
C. rainfall does not contribute in maintenance of underground water table
D. underground water may also be connected to surface water

28. Match list-I with list-II and select the correct answer using the code given below the lists –
list-I (ocean current) list-II (coast)
a. humboldt              1. namibia-angola
b. North atlantic drift 2. chile-peru
c. benguela              3. mozambique-madagascar
d. agulhas                4. United kingdom-norway
Code :
.   a b c d
A. 2 1 4 3
B. 2 4 1 3
C. 3 4 1 2
D. 3 1 4 2

29. The horizontal wind cirulation near the earth’s surface is due to the –
1. pressure gradient
2. frictional force
3. coriolis force
Select the correct answer using the code given below –
A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3

30. A wire-bound standard resistor uses manganin or constantan. It is because –
A. these alloys are cheap and easily available
B. they have high resistivity
C. they have low resistivity
D. they have resistivity which almost remains unchanged with temperature

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