ECAT (Practice Test) FLP 11 Free Quiz

Chemis

Comput

Englis

Maths

Physic

ECAT (Practice Test) – FLP 11 consists of 130 MCQs covering 5 subjects. You have 100 minutes to complete it. Start with the easier questions and manage your time wisely. Good luck!

Chemistry 30 MCQs

1. The electron is discovered by:

A. J.J. Thomson B. Rutherford C. Chadwick D. Millikan

2. The mass of a neutron is approximately:

A. 1.67 × 10⁻²⁷ kg B. 9.1 × 10⁻³¹ kg C. 1.0 × 10⁻³⁰ kg D. 1.67 × 10⁻²⁸ kg

3. The gold foil experiment was performed by:

A. Rutherford B. Bohr C. Thomson D. Chadwick

4. The de Broglie wavelength of a particle is given by:

A. λ = h / p B. λ = p / h C. λ = h p D. λ = 1 / (h p)

5. The quantum number that defines the shape of an orbital is:

A. Azimuthal (l) B. Principal (n) C. Magnetic (m) D. Spin (s)

6. The number of orbitals in a subshell is given by:

A. 2l + 1 B. 2n + 1 C. 2l - 1 D. 2n - 1

7. The maximum number of electrons in a shell is:

A. 2n² B. 2n C. n² D. n

8. The electron configuration of oxygen (Z=8) is:

A. 1s² 2s² 2p⁴ B. 1s² 2s² 2p⁶ C. 1s² 2s² 2p² D. 1s² 2s² 2p³

9. The number of unpaired electrons in oxygen atom is:

A. 2 B. 4 C. 6 D. 0

10. The element with atomic number 24 is chromium. Its electron configuration is:

A. [Ar] 3d⁵ 4s¹ B. [Ar] 3d⁴ 4s² C. [Ar] 3d⁵ 4s² D. [Ar] 3d⁶ 4s¹

11. The Rydberg constant is approximately:

A. 1.097 × 10⁷ m⁻¹ B. 1.097 × 10⁷ m C. 1.097 × 10⁻⁷ m⁻¹ D. 1.097 × 10⁷ s⁻¹

12. The wave-particle duality of electrons was experimentally confirmed by:

A. Davisson and Germer B. Thomson C. Rutherford D. Millikan

13. Isobars are atoms with the same mass number but different:

A. Atomic number B. Neutrons C. Electrons D. Both A and B

14. The shape of NH₃ is:

A. Trigonal pyramidal B. Tetrahedral C. Bent D. Trigonal planar

15. The shape of CO₂ is:

A. Linear B. Bent C. Trigonal planar D. Tetrahedral

16. The bond energy is the energy required to break a bond. It is directly proportional to:

A. Bond order B. Bond length C. Electronegativity D. Molecular mass

17. The hybridisation of carbon in ethyne (C₂H₂) is:

A. sp B. sp² C. sp³ D. sp³d

18. The molecule with polar bonds but nonpolar overall is:

A. CO₂ B. H₂O C. NH₃ D. HCl

19. The number of lone pairs on central atom in XeF₆ is:

A. 1 B. 2 C. 3 D. 0

20. The Lewis structure of CO₂ shows:

A. Two double bonds B. One double and one single C. Two single bonds D. Triple bond

21. For the reaction N₂ + 3H₂ ⇌ 2NH₃, decreasing pressure will shift equilibrium:

A. Towards reactants B. Towards products C. No shift D. Depends on temperature

22. If Q > K, the reaction will proceed:

A. Reverse (towards reactants) B. Forward C. No reaction D. Equilibrium

23. The relationship between Ka and Kb for a conjugate acid-base pair is:

A. Ka × Kb = Kw B. Ka / Kb = Kw C. Ka + Kb = Kw D. Ka = Kb

24. The pH of a 0.01 M HCl solution is approximately:

A. 2 B. 1 C. 3 D. 4

25. The common ion effect is used in qualitative analysis to:

A. Selectively precipitate ions B. Increase solubility C. Change pH D. Act as catalyst

26. The pH of a buffer solution containing 0.1 M acetic acid and 0.1 M sodium acetate (pKa=4.76) is:

A. 4.76 B. 4.76 C. 5.76 D. 3.76

27. The electrode where reduction occurs is called:

A. Cathode B. Anode C. Salt bridge D. Electrolyte

28. At 25°C, the Nernst equation can be written as:

A. E = E° - (0.0592/n) log Q B. E = E° - (0.0592/n) ln Q C. E = E° + (0.0592/n) log Q D. E = E° - (0.0592/n) Q

29. In electrolysis of aqueous NaCl, the product at cathode is:

A. H₂ B. Na C. Cl₂ D. O₂

30. The number of faradays required to deposit one mole of Cu from Cu²⁺ is:

A. 2 F B. 1 F C. 3 F D. 4 F

Computer Science 30 MCQs

31. In business, computers are used for:

A. Accounting and inventory management B. Only sending emails C. Only making calls D. Only printing documents

32. Computers are used in transportation for:

A. Traffic control and navigation B. Only driving cars C. Only flying planes D. Only building roads

33. Normalization in databases is used to:

A. Reduce data redundancy and dependency B. Increase storage C. Delete data D. Create backups

34. What is the role of the program counter (PC)?

A. Holds the address of the next instruction B. Holds the current instruction C. Stores data D. Performs arithmetic

35. The decimal number system uses base:

A. 10 B. 2 C. 8 D. 16

36. Which of these is a type of data structure?

A. Array B. Mouse C. Keyboard D. Monitor

37. The OSI model has how many layers?

A. 7 B. 5 C. 4 D. 6

38. Data redundancy can lead to:

A. Update anomalies B. Faster queries C. Less storage D. Better integrity

39. Which gate outputs 1 when any input is 1?

A. OR B. AND C. NOT D. NOR

40. Which of these is a type of computer memory?

A. RAM and ROM B. CPU C. ALU D. Bus

41. Which statement is used to exit a loop early in C?

A. break B. continue C. exit D. return

42. What does the feof() function check?

A. End of file indicator B. File size C. File open status D. File permissions

43. Which function sets the file pointer to the beginning of the file?

A. rewind() B. fseek() C. ftell() D. fgetpos()

44. How can a function receive an array in C?

A. As a pointer to the first element B. As a copy of the entire array C. As a parameter with size D. As a reference

45. A router is used to:

A. Forward data packets between networks B. Connect to the Internet directly C. Store data D. Display web pages

46. What is the difference between the Internet and an intranet?

A. Internet is public; intranet is private B. Intranet is public; Internet is private C. They are the same D. Intranet is larger

47. Which of the following is the correct extension for a C source file?

A. .c B. .cpp C. .java D. .py

48. What is the output: int x = 5, y = 2; printf("%d", x%y);

A. 1 B. 2 C. 3 D. 0

49. Which of the following is an example of a Wide Area Network (WAN)?

A. The Internet B. School computer lab C. Office network D. Home Wi-Fi

50. A plotter is a type of:

A. Output device for large drawings B. Input device for drawing C. Storage device D. Network device

51. In a one-to-many relationship, which side is the foreign key on?

A. Many side B. One side C. Both sides D. Neither

52. Which view displays data in a spreadsheet-like format?

A. Datasheet View B. Design View C. Layout View D. Form View

53. A loop that never executes its body is:

A. A while loop with a false condition B. A for loop with a false condition C. Both A and B D. A do-while loop

54. Which tool in Access helps create a report automatically from a table or query?

A. Report Wizard B. Form Wizard C. Query Wizard D. Table Wizard

55. A printer is categorized as an:

A. Output device B. Input device C. Storage device D. Processing device

56. A plotter is a specialized output device for:

A. Large-scale drawings and maps B. Text printing C. Photo printing D. Scanning

57. What is a firewall?

A. A hardware or software system that monitors and controls network traffic B. A type of virus C. A backup device D. A word processor

58. Which clause is used to group rows with same values in a query?

A. GROUP BY B. ORDER BY C. HAVING D. WHERE

59. Which software is commonly used for word processing?

A. Microsoft Word B. Microsoft Excel C. Microsoft Access D. Microsoft PowerPoint

60. Which shortcut key saves a document in Word?

A. Ctrl + S B. Ctrl + O C. Ctrl + N D. Ctrl + P

English 10 MCQs

61. How much water is recommended daily?

A. 2 litres B. 1 litre C. 4 litres D. 5 litres

62. The passage suggests that online learning is:

A. Convenient but challenging B. Always easy C. Never effective D. Only for young people

63. What does "mindfully" mean?

A. With awareness and care B. Carelessly C. Quickly D. Rarely

64. What is the meaning of "transformed"?

A. Changed dramatically B. Stayed the same C. Worsened D. Improved slightly

65. What does "foundation" mean in context?

A. Base or basis B. Top part C. Decoration D. End

66. What is the meaning of "innovation"?

A. New ideas or methods B. Old traditions C. Stagnation D. Rejection of change

67. Which of the following is NOT mentioned as a benefit of education?

A. Wealth accumulation B. Empowerment C. Poverty reduction D. Meaningful employment

68. What does "access" mean?

A. The right or ability to use B. Denial C. Barrier D. Danger

69. What should be reduced to prevent health problems?

A. Sugar, salt, and saturated fats B. Water C. Fruits D. Vegetables

70. What is a benefit of travel mentioned?

A. Broadens the mind and reduces stress B. Increases stress C. Leads to boredom D. Creates isolation

Maths 30 MCQs

71. Solve for x: x/3 = 9

A. 27 B. 3 C. 9 D. 18

72. Solve: |x - 3| = 5

A. 8 and -2 B. 8 and 2 C. -8 and 2 D. 8 and -2

73. If f(x) = 2x² + 3x - 1, find f(2).

A. 13 B. 11 C. 9 D. 15

74. What is the value of e^(ln 7)?

A. 7 B. e C. 1 D. ln 7

75. Solve: 2(x+3) = 4x - 2

A. 4 B. 2 C. 5 D. 3

76. What is the distance of point (3,4) from the origin?

A. 5 B. 7 C. 1 D. √25

77. What is the distance from the origin to the point (6,8)?

A. 10 B. 14 C. 2 D. √100

78. What is the equation of the line through origin with slope -1?

A. y = -x B. y = x C. y = -1 D. x = -1

79. What is the center of the circle x² + y² + 4x - 6y = 12?

A. (-2,3) B. (2,-3) C. (-4,6) D. (4,-6)

80. What is the derivative of f(x) = 3x² + 2 at x=0?

A. 0 B. 2 C. 6 D. 8

81. Find the critical points of f(x) = x² - 4x + 3.

A. x=2 B. x=1 C. x=3 D. x=0

82. Find the derivative of f(x) = 1/(3x+1).

A. -3/(3x+1)² B. 3/(3x+1)² C. -1/(3x+1)² D. 1/(3x+1)²

83. What is the derivative of f(x) = x^2 ln x?

A. x(2 ln x + 1) B. x(2 ln x - 1) C. x² ln x D. 2x ln x

84. Find the derivative of f(x) = sin x + cos x at x=0.

A. 1 B. 0 C. -1 D. 2

85. What is ∫ (x+1) dx?

A. x²/2 + x + C B. x²/2 + C C. x + C D. x²/2 + x

86. Evaluate ∫₀^π/2 sin x dx.

A. 1 B. 0 C. 2 D. -1

87. What is the GCD of 12 and 18?

A. 6 B. 3 C. 12 D. 9

88. What is the value of i³?

A. -i B. i C. -1 D. 1

89. What is the sum of first n natural numbers?

A. n(n+1)/2 B. n(n+1) C. n(n-1)/2 D. n²

90. Which of the following sequences is geometric?

A. 3, 6, 12, 24 B. 3, 6, 9, 12 C. 3, 9, 27 D. Both A and C

91. What is the variance of 1, 2, 3, 4, 5?

A. 2 B. 2.5 C. 1 D. 1.5

92. What is the mean of the first 5 even numbers?

A. 6 B. 5 C. 4 D. 8

93. What is the probability of drawing a face card (J,Q,K) from a deck?

A. 3/13 B. 1/13 C. 12/52 D. Both A and C

94. What is the median of 1, 3, 5, 7, 9?

A. 5 B. 3 C. 7 D. 1

95. What is the value of cos 90°?

A. 0 B. 1 C. 1/2 D. √3/2

96. What is the value of cos(90° - θ)?

A. sin θ B. cos θ C. tan θ D. cot θ

97. What is the value of tan(π/6)?

A. 1/√3 B. √3 C. 1 D. 0

98. If A = 2i + 3j and B = i - j, find A - B.

A. i + 4j B. i + 2j C. 3i + 2j D. i - 4j

99. What is the scalar product of i and i?

A. 1 B. 0 C. -1 D. 2

100. What is the projection of A=(2,3) on B=(1,0)?

A. 2 B. 3 C. √13 D. 1

Physics 30 MCQs

101. Ohm's law states that the current through a conductor is directly proportional to:

A. Voltage B. Resistance C. Power D. Charge

102. The torque on a current-carrying coil in a magnetic field is maximum when the plane of the coil is:

A. Parallel to the field B. Perpendicular to the field C. At 45° D. At any angle

103. The direction of force on a positive charge moving in a magnetic field is given by:

A. Right-hand rule for cross product B. Left-hand rule C. Fleming's left-hand rule D. Lenz's law

104. The cyclotron frequency is given by:

A. f = qB / (2πm) B. f = 2πm / (qB) C. f = qB / m D. f = m / (qB)

105. Electric field lines originate from:

A. Positive charges B. Negative charges C. Both equally D. Neutral charges

106. The work done in moving a charge q through a potential difference V is:

A. W = q V B. W = q / V C. W = V / q D. W = q V²

107. The orbital velocity of a satellite near Earth's surface is approximately:

A. 7.9 km/s B. 11.2 km/s C. 5 km/s D. 10 km/s

108. Gravitational force is:

A. A conservative force B. A non-conservative force C. A frictional force D. Magnetic force

109. The weight of an object is less at the equator than at the poles because:

A. Centrifugal effect and equatorial bulge B. The mass is less C. The Earth's radius is smaller at equator D. Gravitational constant changes

110. The gravitational field inside a uniform spherical shell is:

A. Zero B. Non-zero C. Maximum at centre D. Decreases with distance

111. Static friction is the frictional force between two surfaces that are:

A. At rest relative to each other B. Sliding C. Rolling D. In motion

112. In a perfectly inelastic collision, the objects:

A. Stick together after collision B. Bounce apart C. Move separately D. Lose all momentum

113. The direction (angle) of a vector with components A_x and A_y is:

A. tan⁻¹(A_y/A_x) B. tan⁻¹(A_x/A_y) C. sin⁻¹(A_y/A) D. cos⁻¹(A_x/A)

114. The least count of a Vernier calipers is typically:

A. 0.01 cm B. 0.001 cm C. 0.1 cm D. 0.01 mm

115. When multiplying measurements, the result should have the same number of significant figures as the:

A. Measurement with fewest significant figures B. Measurement with most significant figures C. Average significant figures D. Product of significant figures

116. The first postulate of special relativity states that the laws of physics are the same in all:

A. Inertial reference frames B. Non-inertial frames C. Accelerated frames D. Gravitational frames

117. The rest mass of a photon is:

A. Zero B. Equal to electron mass C. Equal to proton mass D. Infinite

118. The de Broglie wavelength of an electron accelerated through a potential V is:

A. λ = h / √(2meV) B. λ = h √(2meV) C. λ = √(2meV) / h D. λ = h / (2meV)

119. The phenomenon of bending of light around obstacles is called:

A. Diffraction B. Reflection C. Refraction D. Interference

120. The angular velocity ω is defined as:

A. dθ/dt B. dω/dt C. θ/t D. ω/t

121. The centripetal acceleration is given by:

A. a_c = v²/r B. a_c = ω²r C. Both A and B D. a_c = v r

122. The condition for rotational equilibrium is that the sum of all torques acting on the object is:

A. Zero B. Maximum C. Constant D. Non-zero

123. The angular momentum of a satellite in orbit around Earth is conserved because:

A. No external torque acts (gravity is central) B. Its speed changes C. Its radius changes D. Mass changes

124. The number of waves passing a point per second is called:

A. Frequency B. Wavelength C. Amplitude D. Speed

125. Light waves are examples of:

A. Transverse waves B. Longitudinal waves C. Mechanical waves D. Sound waves

126. A ball is thrown vertically upward. At the highest point, its kinetic energy is:

A. Zero B. Maximum C. Half D. Equal to potential

127. The height from which a body must be dropped to achieve a speed v is:

A. v²/(2g) B. v/(2g) C. 2v²/g D. v²/g

128. Three resistors of 3Ω, 5Ω, and 10Ω are connected in parallel. Which resistor dissipates the most power?

A. 10Ω resistor B. 5Ω resistor C. 3Ω resistor D. All dissipate equal power

129. A wire has a resistance of 100Ω at 20°C and 120Ω at 100°C. What is the temperature coefficient of resistance of the wire?

A. 0.0010 per °C B. 0.0015 per °C C. 0.0020 per °C D. 0.0025 per °C

130. A wire of resistance R is stretched to three times its original length. What is the new resistance?

A. 3R B. 6R C. 7R D. 9R

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