In this post I provided a previous year question paper of

**Bihar Polytechnic entrance exam**.If you are preparing for this entrance exam and want to qualify in it then practice on the following questions carefully.Bihar polytechnic previous year question (Set 1) |

**Physics**

1. When the water freezes then distance between their molecules is

Explanation : no.

2. A horse pull any car 10 meters through the force of 40N.The total work done by the horse is-

Explanation : no

3. The maximum pressure in a bottle filled with water is-

Explanation : no.

4. The time period of hour needle in a watch is-

Explanation : no.

5. Which of the following is vector quantity?

Explanation : no.

6. The flow of heat in two substance depends upon-

Explanation : Heat always flow from high temperature to low temperature.

7. When any object covers the same distance in same time period,Then their motion is-

Explanation : no.

8. If any plane mirror turned from 10° then reflected beam turned-

Explanation : no.

9. There is a object Infront of a convex lens and 9cm away from their focus.Real,inverse and big image make 16cm away from focus,Then the focus length will be-

Explanation : Use the lens formula .

10. Which current is always used in homes?

Explanation : no.

11. In domestic electric circuit all devices work on 220 volt.What does this mean?

Explanation : no.

12. When in electric circuit two bulbs of 100 watt and 40 watt connects in series order then which bulb will more shine?

Explanation : no.

13. The value of magnetic induction under any selenoid is-

Explanation : no.

14. Mass of a object is 50Kg,Then their weight is-

Explanation : Use the formula W=mg.

15. The railway track is made up of-

Explanation : no.

16. Which type of energy stored in spring scales?

Explanation : no.

17. An object is moving from rest by the acceleration of 2m/s².What is the distance covered by object in 5 sec?

Explanation : Use the formula ut+½at² where,u=initial velocity,t=time and a=acceleration.

18. The velocity of two objects of equal mass are V and 3V respectively, Then what will ratio of their kinetic energy?

Explanation : no.

19. At which temperature the value of centigrade and Fahrenheit is equal?

Explanation : no.

20. How much energy consumed by a 20 watt bulb in 20 hours?

Explanation : no.

21. What is the value of latent heat of melt of ice?

Explanation : no.

22. Light wave is-

Explanation : no.

23. Escape velocity of any object from the earth-

Explanation : no.

24. Electron volt is the unit of

Explanation : no.

25. '1 Newton' is equal to

Explanation : no.

26. In any conductor flow of electric current means

Explanation : no.

27. The value of time period of a sound wave is 0.001. calculate the frequency of sound.

Explanation : no.

28. In which medium speed of sound is maximum?

Explanation : no.

29. Sound energy is converted into electrical energy by

Explanation : no.

30. Weight of an object is 50N on the earth.At which place their weight is zero?

Explanation : no.

**Chemistry**

31. In 2FeCl₂+Cl₂, Cl₂ is-

Explanation : no.

32. If specific heat of any material is 0.1 and equivalent weight is 32.28,Then atomic weight of that material is-

Explanation : no.

33. Which of the following statement is incorrect?

Explanation : no.

34. In nuclear reactor control rods are made up of-

Explanation : no.

35. Who was the father of modern chemistry?

Explanation : no.

36. In pressure cooker cooking process is done quickly because-

Explanation : In pressure cooker water is heat on high temperature therefore boiling point of water is increased and cooking process is done quickly.

37. The percentage of water in blue stone (CuSO₄.5H₂O) is-

Explanation : Atomic weight of Cu=63.5,S=32,O=16,H=1.

38. Aqueous solution of FeCl₃ is-

Explanation : no.

39. What will form at the anode in the electrolysis of an aqueous solution of sodium chloride?

Explanation : Because anode have positive charge so negative charge (Cl⁻) is attract on anode.

40. The rate of diffusion of hydrogen is five times from rate of diffusion of another gas X.What is the atomic weight of X?

Explanation : no.

41. When we go from left to right in a periodic table then-

Explanation : no.

42. Rolled gold is-

Explanation : no.

43. Formula of Washing soda is-

Explanation : no.

44. Which of the following is natural silk?

Explanation : no.

45. Which oil is used in froth flotation method?

Explanation : no.

46. What is the I.U.P.A.C name of CHCl₃?

Explanation : The common name of trichloromethane is chloroform.

47. Nitrogen reacts with magnesium and formed

Explanation : 3Mg+N₂→Mg₃N₂.

48. Which of the following is weak acid?

Explanation : no.

49. How many numbers of electrons in outermost shell of halogen?

Explanation : no.

50. What is the basis of rationalization of elements in modern periodic table?

Explanation : Modern periodic table was developed by Mendeleev.

51. Volume of any gas is 300ml at 27°C.If temperature of that gas is increased 127°C at constant pressure then what will volume of gas?

Explanation : no.

52. Electronic configuration of an element is 2,8,2.This element is-

Explanation : That metal is magnesium.

53. Atomic weight of sodium is 23 and atomic number is 11.What will numbers of electrons, neutrons and protons continuously?

Explanation : no.

54. How many numbers of atoms in one mole silver?

Explanation : no.

55. Which compound of nitrogen is used as fertilizer?

Explanation : no.

56. Which of the following is hydrocarbon?

Explanation : no.

57. What will pH value of basic solution?

Explanation : no.

58. Which of the following is alloy of aluminium?

Explanation : no.

59. What is the formula of Chloroform?

Explanation : no.

60. If Ph value of any solution is 8 then that solution is

Explanation : no.

**MATHEMATICS**

61. Before 5 years age of A is five times of age of B and after 10 years age of A will two times of B, What is the present age of A and B?

Explanation : no.

62. Price of 4 chairs and 7 tables is 3600 rupees and price of 6 chairs and 10 tables is 5200 rupees,then what will price of one chair and one table?

Explanation : no.

63. The sum of squares of two consecutive even numbers is 244.That two numbers are-

Explanation : no

64. If a³=117+b³ and a=3+b,then the value of a+b is

Explanation : no.

65. The factor of 4x⁸+16x⁴y⁴+25y⁸ are-

Explanation : no.

66. If x-y=1 and x²+y²=41 then the value of x+y is-

Explanation : no.

67. If angles of a cyclic quadrilateral are A,B,C and D,then the value of cosA+cosB+cosC+cosD is

Explanation : no.

68. If radius of base and height of a vertical cone is increased 20%,then what will percentage growth in volume of cone?

Explanation : no.

69. If curve surface area of cylindrical column is 20m² and volume is 924m³.What will ratio of its diameter and height?

Explanation : no.

70. If root of any quadratic equation is 4 and 5,then equation will-

Explanation : no.

71. If 3ˣ⁻²ⁿ=27,7³ˣ⁺ⁿ=1/49,then-

Explanation : no.

72. If any quantity is doubled in four years from rate of compound interest.For same rate that quantity will sixteen times in-

Explanation : no.

73. In an equilateral triangle ABC, side AB is median of AB,then CD² is equal to

Explanation : no.

74. What is the ratio of volume of a sphere which radius is 5cm and 7cm?

Explanation : no.

75. The diameter of a wheel is 4m then how far distance will cover by wheel in 400 revolution?

Explanation : no.

76. If side of any square is increased by four times then what will ratio of area of resultant square and given square?

Explanation : no.

77. Area of equilateral triangle is equal to

Explanation : no.

78. What will value of sin42º.cos48º+cos42º.sin48º?

Explanation : no.

79. The value of cos⁴θ-sin⁴θ is equal to

Explanation : no.

80. If tanΘ=12/5,then value of sinθ is equal to

Explanation : no.

81. Which of the following is incorrect?

Explanation : no.

28. Sum of two numbers is 8 and different is 4,then one number is-

Explanation : no.

83. Which of the following graph is parallel to X-axis?

Explanation : no.

84. If h(x)=x²-2,x∈R then which of the following statement is incorrect

Explanation : no.

85. X={1,2,3,4},Y={1,6,7,8} then what will value of X∩Y?

Explanation : no.

86. (a+b)c=ac+bc, which of the following rule is used in above equation?

Explanation : no.

87. If a+b=6 and ab=5,then what will value of a-b?

Explanation : Use the formula (a-b)²=(a+b)²-4ab.

88. What is the class mark of 50-56?

Explanation : no.

89. log125+log8=x.

Explanation : no.

90. If two angle of any triangle is 50° and 60° then that triangle is-

Explanation : no.

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