RRB (Kolkata) – Technical Categories Exam 2005 Mock Test

1. A mixture of oil and water contains 35% oil by weight. 25 grams of water is added to 100 grams of such a mixture. What percentage of oil by weight is there in the new mixture ?

2. Rosa can eat 32 rossogollas in one hour. Her sister Lila needs three hours to eat the same number. How much will they take to eat 32 rossogollas together?

3. The point of concurrence of the three medians of a triangle is called the ______ of the triangle.

4. The country with the largest land mass is

5. If all Betas are Gammas, all Gammas are Alphas, and all Thetas are Gammas, then

6. In the sequence of letters given below, which letters out of the given options fill the blanks to maintain the sequence ?
A B B D C F D H E ___, ____

7. HIV infection is necessary tor having AIDS means

8. Which of the following is least like the other four?

9. A cube of white material is painted black on all its surfaces. If it is cut into 125 smaller cubes of the same size, then how many cubes will have two sides painted black?

10. In one meal, Raja always eats one vegetarian dish out of Potato, Beans and Peas, one dish of cereal out of Rice and Chapati, and one non-vegetarian dish out of Chicken, Mutton and Fish. How many combinations can he have of vegetarian, cereal and non-vegetarian dishes?

11. There are four vacant seats in a cinema hall. How many combinations of four people can sit on those seats?

12. Pi(π) is a

13. Anna is 5 times as old as Rita. In 2 years, Anna will be 3 times as old and in 6 years twice as old. How old will Anna be in 7 years?

14. If 10 people can paint 60 houses in 120 days, then 5 people can paint 30 houses in

15. Seth and Guru each have a collection of balls. Seth tells Guru that if he would give him four of his balls, then they would have equal numbers. But if Guru takes 4 (four) balls from him, then Guru would have twice as many. How many balls does Seth have ?

16. Four of the transport forms given below share something in common. Which is the odd-man out ?

17. If log x + log y = log (x +y), then

18. If the radius of a sphere is doubled, then its surface area is increased by

19. A trader marks his goods 20% above the cost price and allows a discount of 15%. His percentage gain is

20. The number of images that can be observed between two parallel mirrors is

21. How many faces are there in an octagonal prism ?

22. A baseball team has nine players. After winning a game, each player shook hands with each other just once. How many times did the players shake hands ?

23. Which of the following is not a mammal?

24. 84 81 88
14 12 18 9 ? 11
Which of the given options fits correctly in the blank space to exhibit the similar pattern of numbers in each of the three sets above?

25. A car company sold 150 cars in a special 6-day sale. Each day, the Company sold 6 more than the previous day. How many cars were sold on the 6th day?

26. sin⁡ 70° + cos⁡ 40°/cos⁡ 70° + sin⁡ 40° = ?

27. If a/2b=3/2, then 2a+b/a-2b is equal to

28. The value of √0.121 is

29. Given the sequence of numbers in the first row, which number fits correctly in the bracket in the second line ?
41 (28) 27
83 (?) 65

30. The vital constituent of blood that helps in clotting is

31. Which device mixes air and petrol (gas) for the internal combustion engine?

32. Hormones are controlled by which of the following human body systems?

33. Which of the following is not a terrestrial planet (having a hard surface)?

34. Watt-hour is the unit of

35. If the linear momentum of a particle is doubled, then its kinetic energy will be

36. The device used tor converting AC from higher voltage to lower voltage or vice versa is called

37. The least distance of distinct vision for a normal eye is

38. The colour of light which travels through glass with the minimum speed is

39. If two electrically-charged bodies are connected by a wire, then the electric Current will not flow if

40. Which civilian award is shaped like a 'peepul leaf'?

41. The special filters used to reduce pollutants from the exhaust of a car are called

42. Which of the following is an example of class- lever ?

43. 'Hubble' is

44. One complete set of positive and negative values of an alternating quantity is known as a

45. If the load and effort are W and P respectively, then the mechanical advantage (M. A) is

46. 60° is equal to

47. Solder is an alloy of

48. When the length of a pendulum in a clock is increased, then

49. Which of the following statements is/are correct?
I. Solids generally expand on melting
II. Ice contracts on melting
III. Density of ice is less than that of water.

50. Which of the following statements is/are correct?
I. A concave mirror never forms an erect, real image.
II. A convex mirror never forms an erect, real image.
III. A concave mirror never forms a virtual image.

51. Biogas mainly contains

52. Two resistances of 3Ω and 6Ω respectively are connected to a battery of 18V in series. The current passing through the circuit is

53. Echoes are due to

54. The force that causes a spring to eventually return to its normal length is called

55. An air-conditioning system regulates

56. When a neutral metal sphere is charged by contact with a positively-charged glass rod, then

57. The amount of work done against friction to slide a box in a straight line across uniform, horizontal floor depends most on the

58. If the sum of all the forces acting on a moving object is zero, then the object will

59. Choose the correct option to fill in the blank in the following sentence:
Since the culprit was caught, the search was called ______

60. The phrase 'To sit on the fence' means

61. Complete the following proverb choosing the correct option :
Better late than ____

62. Choose the correct spellings

63. 'The Guide' is a novel written by

64. Choose the correct option to fill in the blank in the following sentence:
He insisted ______ seeing the documents.

65. The following phrase can be summed up in single word. Choose from the options given below:
'Unable to pay one's debts'

66. I have lived in this house ____ 1978.

67. The child has taken _____ his father.

68. Can you tell me what is ____ at 'Paradise' cinema tonight?

69. How are you getting ____ in your job?

70. You are addicted ____ telling lies, and this would bring troubles for you someday.

71. 'The tanks are full ____ black oil', he said.

72. Some of the revenue will go ____ the reconstruction of Iraq.

73. Find out a word that is nearest in meaning to the word given in capital letters.
CYNOSURE

74. EPOCH

75. Find out a word that is opposite in meaning to the word 'TEDIOUS'

76. The State Emblem of India contains sculptures of four animals. Three of them are Elephant, Galloping Horse and Lion. Which of the following is the fourth one?

77. If a web-site address in the Internet reads as '[email protected]', then 'mars.org' stands for

78. 'World Wide Web' contains which kind of information ?

79. Denmark, Iceland, Norway, Sweden and Finland are together called

80. Ustad Amjad Ali Khan is a distinguished player

81. The first Indian to swim across the English Channel was

82. The first woman Chief Minister of an Indian State was

83. Like the Guinness Book of World Records, we have the

84. 'Glaucoma and Trachoma are the diseases of

85. During whose reign, the Grand Trunk Road was constructed ?

86. Arrange the following in correct chronological order ?
I. Cripps Mission
II. Gandhi Irwin Act
III. Simon Commission

87. Mamallapuram, fomous for its rock cuts and stone sculptures, is located in

88. Bulgaria is located in

89. The All India Muslim League was formed in 1906 at

90. I was an Italian Scientist and Astronomor. I improved the telescope. Who am I?