CAPF (AC) 2014 (Paper-1) (Question 51-100)

Total Questions: 50

41. If x is a positive integer such that 2x + 12 is perfectly divisible by x, then the number of possible values of x is :

Correct Answer: (c) 6
Solution:If (2x + 12) is perfectly divisible by x, then the number of possible values of x is the total number of factors of 12. Which are:

12 → 1 × 2 × 3 × 4 × 6 × 12

∴ Possible value of x is 6.

42. What is clickjacking?

Correct Answer: (c) A malicious technique of tricking Web users into revealing confidential information
Solution:Clickjacking is a malicious technique of tricking a Web user into clicking on something different from what the user perceives, thus potentially revealing confidential information or allowing others to take control of their computer while clicking on seemingly innocuous objects, including web pages. Thus, option (c) is the correct answer.

43. The inner most region of a hurricane is known as hurricane-eye where :

Correct Answer: (a) temperature is highest and pressure is the lowest
Solution:The most recognizable feature found within a hurricane is the eye. They are found at the centre and are between 20-50 km in diameter. The temperature is highest and pressure is the lowest.

The eye is the focus of the hurricane, the point about which the rest of the storm rotates and where the lowest surface pressures are found in the storm. It is the calmest section of any hurricane. Thus, option (a) is the correct answer.

44. Consider the information given below for the next four items.

The following table gives demand and supply of rice, in million ton, for the period 2008 to 2013. Surplus is defined as excess of supply over demand :

YearDemandSupply
200843.346.4
200947.247.8
201049.550.7
201153.454.2
201254.557.3
201362.763.4

The increase in demand of rice was the lowest in the year:

Correct Answer: (c) 2012
Solution:Increase in demand in 2009

47.2 - 43.3 = 3.9

Increase in demand in 2010

49.5 - 47.2 = 2.3

Increase in demand in 2011

= 53.4 - 49.5 = 3.9

Increase in demand in 2012

54.5 - 53.4 = 1.1

So, increase in demand of rice was the lowest in the year 2012.

45. The average surplus (in million ton) rice for the period 2009 to 2013 is:

Correct Answer: (b) 1.22
Solution:Surplus in 2009 = 47.8 - 47.2 = 0.6

Surplus in 2010 = 50.7 - 49.5 = 1.2

Surplus in 2011 = 54.2 - 53.4 = 0.8

Surplus in 2012 = 57.3 - 54.5 = 2.8

Surplus in 2013 = 63.4 - 62.7 = 0.7

Total surplus = 0.6 + 1.2 + 0.8 + 2.8 + 0.7 = 6.1

Average surplus = 6.1/5 ⇒ 1.22

46. In how many years, the supply (in million ton) of rice was more than the average supply for 2008 to 2013?

Correct Answer: (a) 3
Solution:Total supply from 2008 to 2013

= 46.4 + 47.8 + 50.7 + 54.2 + 57.3 + 63.4 = 319.8

Average supply from 2008 to 2013 = 319.8/6 = 53.3

So, supply of rice in 2011, 2012 and 2013 is more than the average supply for 2008 to 2013.

47. The surplus of rice was lowest for the year :

Correct Answer: (d) 2009
Solution:Using the solution of question 95, we can see that the surplus of rice was lowest for the year 2009.

48. The weight of any object is felt due to gravity of Earth. When any object goes inside the Earth or above the Earth, weight decreases. It will weigh minimum when an object is placed at :

Correct Answer: (d) Centre of Earth and in an orbiting satellite
Solution:The weight of any object will be minimum when an object is placed at the centre of the earth because when an object is in the centre, it experiences gravitational pull from all directions. Also, the Weight of an object put in a satellite orbiting in space around the earth is reduced to zero.

49. Which one among the following countries of Asia is land-locked?

Correct Answer: (c) Laos
Solution:Laos is the only landlocked country in Southeast Asia bordered by Cambodia, China, Myanmar, Thailand and Vietnam. With nearly one-quarter of its population below the poverty line, Laos remains one of the poorest countries in Southeast Asia. But it has made good progress over the past 20 years, including halving poverty, reducing hunger, and improving education and health outcomes.

50. Large Hadron Collider was in news recently for doing some scientific research to prove the presence of an elementary particle. The scientist who predicted this particle in 1964 has been awarded Nobel Prize in 2013. What is this discovery?

Correct Answer: (c) Higg's Bosons or God Particles explaining why fundamental particles have mass
Solution:In 2012, scientists confirmed the detection of the long-sought Higgs boson, also known by its nickname the 'God particle,' at the Large Hadron Collider (LHC), the most powerful particle accelerator on the planet.

This article helps give mass to all elementary particles that have mass, such as electrons and protons. Elementary particles that do not have mass, such as the photons that make up light, do not get mass from the Higgs boson. Thus, option (c) is the correct option.