CDS Exam (I)- 2018 - General Knowledge Defence Question Paper

CDS Previous Year Question Papers Question Papers
CDS Exam (I)- 2018 - General Knowledge

CDS Exam (I)- 2018 - General Knowledge Defence Questions

31.
Which one of the following elements will be an isobar of calcium if the atomic number of calcium is 20 and its mass number is 40?
A.
Element with 20 protons and 18 neutrons
B.
Element with 18 protons and 19 neutrons
C.
Element with 20 protons and 19 neutrons
D.
Element with 18 protons and 22 neutrons
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ANSWER :
D. Element with 18 protons and 22 neutrons
32.
Which of the following represents a relation for ‘heat lost = heat gained’?
A.
Principle of thermal equilibrium
B.
Principle of colors
C.
Principle of calorimetry
D.
Principle of vaporization
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ANSWER :
C. Principle of calorimetry
33.
Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes
A.
2R
B.
\( \frac{R}{2} \)
C.
\( \frac{5}{4}R \)
D.
\( \frac{3}{4}R \)
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ANSWER :
C. \( \frac{5}{4}R \)
34.
When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is
A.
reflection of light
B.
refraction of light
C.
dispersion of light
D.
scattering of light
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ANSWER :
D. scattering of light
35.

Match List-I with List-II and select the correct answer using the code given below the Lists:

List-I (Cloud) List-II (Characteristic)
A. Cirrus 1. Rain-giving
B. Stratus 2. Feathery appearance
C. Nimbus 3. Vertically growing
D. Cumulus 4. Horizontally spreading

Code: A B C D

A.

3 1 4 2

B.

2 1 4 3

C.

2 4 1 3

D.

3 4 1 2

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ANSWER :

C. 2 4 1 3

36.
Which one of the following is not an exclusive right of the concerned coastal nations over Exclusive Economic Zone (EEZ)?
A.
Survey and exploitation of mineral resources of ocean deposits
B.
Exploitation of marine water energy and marine organisms including fishing
C.
Conservation and management of marine resources
D.
Navigation of ships and laying down submarine cables
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ANSWER :
D. Navigation of ships and laying down submarine cables
37.
In which one of the following groups of States in India is the Integrated Coastal Zone Management (ICZM) Project being implemented as a pilot investment?
A.
Gujarat, Kerala and Goa
B.
Kerala, Karnataka and Andhra Pradesh
C.
Gujarat, Odisha and West Bengal
D.
Maharashtra, Andhra Pradesh and Tamil Nadu
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ANSWER :
C. Gujarat, Odisha and West Bengal
38.
Which of the following statements about the National Water Academy (NWA) is/are correct?
1. The primary objective of the NWA is to function as Centre of Excellence in training for in-service engineers from Central and State organizations on various aspects of water resource planning.
2. The NWA is located in New Delhi.
Select the correct answer using the code given below.
A.
1 only
B.
2 only
C.
Both 1 and 2
D.
Neither 1 nor 2
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ANSWER :
A. 1 only
39.
A wire of copper having length \( l \) and area of cross-section A is taken and a current \( i \) is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be
A.
P
B.
< P
C.
> P
D.
2P
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ANSWER :
C. > P
40.
The pressure of a fluid varies with depth h as \( P = P_{0} + \rho gh \), where \( \rho \) is the fluid density. This expression is associated with
A.
Pascal’s law
B.
Newton’s law
C.
Bernoulli’s principle
D.
Archimedes’ principle
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ANSWER :
A. Pascal’s law
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