ECAT (Practice Test) FLP 6 Free Quiz

Chemis

Comput

Englis

Maths

Physic

ECAT (Practice Test) – FLP 6 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 smallest particle of an element that can take part in a chemical reaction is called:

A. Molecule B. Atom C. Ion D. Electron

2. The charge on an electron is:

A. -1.6 × 10⁻¹⁹ C B. +1.6 × 10⁻¹⁹ C C. 0 D. +1.6 × 10⁻¹⁹ C

3. The plum pudding model was proposed by:

A. J.J. Thomson B. Rutherford C. Bohr D. Dalton

4. The ground state of hydrogen corresponds to n =

A. 1 B. 2 C. 3 D. ∞

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

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

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

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

7. The quantum mechanical model of the atom uses:

A. Probability of finding electrons (electron cloud) B. Fixed orbits C. Planetary orbits D. Rings

8. The speed of electron in the first Bohr orbit is approximately:

A. 2.18 × 10⁶ m/s B. 3.0 × 10⁸ m/s C. 2.18 × 10⁸ m/s D. 1.09 × 10⁶ m/s

9. The bond in NaCl is:

A. Ionic B. Covalent C. Metallic D. Hydrogen

10. The bond angle in water (H₂O) is approximately:

A. 104.5° B. 109.5° C. 120° D. 180°

11. The shape of NH₃ is:

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

12. The shape of XeF₄ is:

A. Square planar B. Tetrahedral C. Octahedral D. Trigonal bipyramidal

13. The hydrogen bond is strongest in:

A. HF B. H₂O C. NH₃ D. CH₄

14. The bond order in N₂ molecule is:

A. 3 B. 2 C. 1 D. 2.5

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

A. sp B. sp² C. sp³ D. sp³d

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

A. Towards products (more NH₃) B. Towards reactants C. No shift D. Depends on temperature

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

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

18. For a reaction with Δn = 0 (same moles of gas), change in pressure:

A. Has no effect on equilibrium position B. Shifts to products C. Shifts to reactants D. Depends on temperature

19. For a reaction in which ΔH is positive (endothermic), raising the temperature will:

A. Shift towards products B. Shift towards reactants C. No shift D. Decrease K

20. The equilibrium constant Kp for a gaseous reaction is related to Kc by:

A. Kp = Kc (RT)^Δn B. Kp = Kc / (RT)^Δn C. Kp = Kc (RT) D. Kp = Kc

21. The solubility of CaF₂ is higher in water than in NaF solution because:

A. Common ion effect (F⁻) decreases solubility B. NaF increases solubility C. CaF₂ is more soluble in salt solutions D. pH changes

22. For the reaction N₂O₄(g) ⇌ 2NO₂(g), ΔH > 0. Increasing temperature will:

A. Shift towards products (NO₂) B. Shift towards reactants C. No shift D. Depends on pressure

23. The salt bridge is used to:

A. Maintain electrical neutrality by allowing ion flow B. Provide electrons C. Act as electrode D. Stop the reaction

24. The standard reduction potential of Zn²⁺/Zn is -0.76 V. This means Zn²⁺ is reduced more:

A. Less readily than H⁺ B. More readily than H⁺ C. Equally D. Cannot determine

25. For the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, the standard cell potential is (E°Zn²⁺/Zn=-0.76 V, E°Cu²⁺/Cu=+0.34 V):

A. 1.10 V B. -1.10 V C. 0.42 V D. 0.76 V

26. The amount of substance deposited during electrolysis is directly proportional to the charge passed. This is Faraday's:

A. First law B. Second law C. Third law D. Law of electrolysis

27. Faraday's second law states that when the same charge passes through different electrolytes, the masses deposited are proportional to:

A. Equivalent weights B. Atomic masses C. Molar masses D. Valencies

28. In the electrolysis of water, hydrogen gas is produced at the:

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

29. In a hydrogen fuel cell, the reaction at the anode is:

A. H₂ → 2H⁺ + 2e⁻ B. O₂ + 4H⁺ + 4e⁻ → 2H₂O C. H₂ + 2OH⁻ → 2H₂O + 2e⁻ D. O₂ + 2H₂O + 4e⁻ → 4OH⁻

30. The electrolysis of molten Al₂O₃ (Hall-Heroult process) produces:

A. Aluminium and oxygen B. Aluminium and chlorine C. Sodium and chlorine D. Magnesium and oxygen

Computer Science 30 MCQs

31. Computers are used in banking for:

A. ATM transactions and online banking B. Only counting cash C. Only printing receipts D. Only making phone calls

32. Which of the following is an example of computer application in communication?

A. Email and video conferencing B. Only fax machines C. Only postal mail D. Only landline phones

33. Which SQL command removes records?

A. DELETE B. SELECT C. INSERT D. UPDATE

34. The Internet is a:

A. Global network of networks B. Single computer C. Local network D. Hardware device

35. Which of these is a type of malware?

A. Virus B. Firewall C. Antivirus D. Encryption

36. A nibble is:

A. 4 bits B. 8 bits C. 16 bits D. 2 bits

37. Bluetooth is used for:

A. Short-range wireless communication B. Long-range satellite communication C. Fiber optic communication D. Cable television

38. Fourth Normal Form (4NF) addresses:

A. Multi-valued dependencies B. Transitive dependencies C. Partial dependencies D. Repeating groups

39. The first step in database design is:

A. Requirements analysis B. Physical design C. Implementation D. Testing

40. Physical design involves:

A. Storage structures, indexing, and performance tuning B. Creating ER diagrams C. Normalization D. Requirement gathering

41. What is a data model?

A. A conceptual framework for organizing data B. A type of database C. A programming language D. A storage device

42. What is the output: int x = 5; printf("%d", x++);

A. 5 B. 6 C. 0 D. Error

43. Which mode is used to open a file for appending?

A. "a" B. "w" C. "r" D. "r+"

44. The short int data type typically occupies:

A. 2 bytes B. 4 bytes C. 1 byte D. 8 bytes

45. Which of these is a valid IPv4 address?

A. 192.168.1.1 B. 192.168.1 C. 192.168.1.1.1 D. 192.168

46. A fingerprint scanner is used for:

A. Input for biometric authentication B. Output for biometric authentication C. Storage for biometric data D. Network connection

47. Which of the following is not a computer generation component?

A. Quantum processor B. Vacuum tube C. Transistor D. Integrated circuit

48. A relationship in Access links:

A. Two tables using a common field B. Two forms C. Two queries D. Two reports

49. Which of these is an infinite loop in C?

A. while(1) { } B. for(;;) { } C. while(true) { } D. All of the above

50. What is the output: int i; for(i=0; i<3; i++) { printf("%d", i); }

A. 012 B. 123 C. 0 1 2 D. 01

51. Which loop is best when the number of iterations depends on a condition?

A. while loop B. for loop C. do-while D. All are equal

52. A bound control in a form is connected to:

A. A field in a table B. A report C. A query D. Another form

53. A peripheral device is defined as:

A. An external device attached to the computer B. The CPU C. The memory D. The motherboard

54. A joystick is primarily used for:

A. Gaming and flight simulations B. Typing C. Printing D. Scanning

55. Which function is used to calculate the average of a range?

A. AVERAGE B. SUM C. COUNT D. MAX

56. A formula in Excel always starts with:

A. = B. + C. - D. @

57. What is a cell reference in Excel?

A. The address of a cell B. The value in a cell C. A function D. A chart

58. Which function is used to calculate the future value of an investment?

A. FV B. PV C. PMT D. RATE

59. Which clause is used to filter groups after GROUP BY?

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

60. Which tool in Windows is used to defragment a hard drive?

A. Disk Defragmenter B. Disk Cleanup C. System Restore D. Task Manager

English 10 MCQs

61. How many minutes of moderate activity are recommended per week?

A. 150 minutes B. 100 minutes C. 200 minutes D. 50 minutes

62. The passage suggests that online learning is:

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

63. How long do plastics take to decompose?

A. Hundreds of years B. A few days C. Weeks D. Months

64. What are examples of renewable energy mentioned?

A. Solar, wind, hydroelectric B. Coal, oil, gas C. Nuclear, geothermal D. Biomass, tidal

65. What should be reduced to prevent health problems?

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

66. What can obesity and heart disease be prevented by?

A. Reducing sugar, salt, and saturated fats B. Eating more sugar C. Eating more salt D. Eating more fat

67. What is "toxins"?

A. Harmful substances B. Nutrients C. Vitamins D. Minerals

68. What does travel expose people to?

A. New cultures and perspectives B. Only new foods C. Only new languages D. Only new climates

69. What is a benefit of travel mentioned?

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

70. What does "lasting memories" mean?

A. Memories that remain for a long time B. Short-term memories C. Forgotten memories D. Unpleasant memories

Maths 30 MCQs

71. What is the geometric mean of 4 and 9?

A. 6 B. 36 C. 13 D. √13

72. What is the value of 2x - 3y if x = 5 and y = 2?

A. 4 B. 7 C. 6 D. 8

73. What is the value of sin 30°?

A. 1/2 B. √3/2 C. √2/2 D. 1

74. What is the slope of the line 2x + 3y = 6?

A. -2/3 B. 2/3 C. -3/2 D. 3/2

75. What is the derivative of f(x) = (2x+1)^3 using chain rule?

A. 6(2x+1)² B. 3(2x+1)² C. 2(2x+1)² D. 6(2x+1)³

76. What is the derivative of f(x) = 3x² + 2x + 1 at x=1?

A. 8 B. 6 C. 4 D. 10

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

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

78. What is the derivative of f(x) = 7x?

A. 7 B. 0 C. 7x D. x

79. What is the integral of 3x² from 0 to 2?

A. 8 B. 4 C. 16 D. 2

80. Evaluate ∫₀¹ x² dx.

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

81. What is ∫ (2x+3)² dx?

A. 4x³/3 + 6x² + 9x + C B. 2x² + 6x + C C. 4x³/3 + 9x + C D. 4x³/3 + 6x + C

82. The decimal expansion of 1/7 is:

A. 0.overline{142857} B. 0.142857 C. 0.142 D. 0.14

83. What is the sum of the first 3 terms of a geometric sequence with first term 2 and ratio 3?

A. 26 B. 6 C. 18 D. 24

84. What is the nth term of a geometric sequence with first term a and ratio r?

A. a r^{n-1} B. a r^n C. a + (n-1)r D. a r^{n+1}

85. Find the 15th term of sequence 5,10,15,20,...?

A. 75 B. 70 C. 80 D. 65

86. What is the common difference of A.P: 5, 11, 17, 23?

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

87. What is the common ratio of sequence 5, -10, 20, -40?

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

88. What is the sum of the first 10 odd numbers?

A. 100 B. 50 C. 75 D. 125

89. What is the range of 10, 15, 20, 25, 30?

A. 20 B. 10 C. 15 D. 25

90. What is the probability of getting a head when tossing a coin?

A. 1/2 B. 1/4 C. 1 D. 0

91. What is the mode of the data set 1, 1, 2, 3, 3, 3, 4?

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

92. If a fair coin is tossed 3 times, what is the probability of getting exactly 1 head?

A. 3/8 B. 1/8 C. 3/4 D. 1/2

93. What is the probability of getting a sum of 12 when rolling two dice?

A. 1/36 B. 2/36 C. 1/18 D. 1/12

94. What is the value of sin 45°?

A. √2/2 B. √3/2 C. 1/2 D. 1

95. What is the amplitude of y = 3 sin x?

A. 3 B. 1 C. 2 D. 6

96. What is the direction (angle) of vector (3,4) with the positive x-axis?

A. tan⁻¹(4/3) B. tan⁻¹(3/4) C. sin⁻¹(4/5) D. cos⁻¹(3/5)

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

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

98. What is the dot product of (2,3,4) and (1,0,1)?

A. 6 B. 2 C. 4 D. 8

99. What is the area of the parallelogram formed by vectors A=(1,2) and B=(3,4)?

A. |1*4 - 2*3| = |-2| = 2 B. 5 C. 10 D. 2

100. What is the cross product of (1,2,0) and (3,4,0)?

A. (0,0,-2) B. (0,0,2) C. (2,0,0) D. (0,2,0)

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. If the length of a wire is doubled, its resistance becomes:

A. Double B. Half C. Four times D. One fourth

103. A galvanometer can be converted into a voltmeter by connecting:

A. A high resistance in series B. A low resistance in parallel C. A high resistance in parallel D. A low resistance in series

104. The cyclotron frequency is given by:

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

105. The force between two charges is inversely proportional to:

A. Square of distance between them B. Distance C. Cube of distance D. Square root of distance

106. A dielectric material inserted between capacitor plates:

A. Increases capacitance B. Decreases capacitance C. Has no effect D. Destroys the capacitor

107. The value of universal gravitational constant G is:

A. 6.67 × 10⁻¹¹ N m²/kg² B. 6.67 × 10¹¹ C. 9.8 D. 6.67 × 10⁻¹⁹

108. Kinetic friction is given by:

A. f_k = μ_k N B. f_k = μ_s N C. f_k = N / μ_k D. f_k = μ_k / N

109. The number 4.50 × 10³ has how many significant figures?

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

110. Which of the following is a scalar quantity?

A. Speed B. Velocity C. Displacement D. Force

111. The resultant of two equal vectors of magnitude F acting at 120° has magnitude:

A. F B. F√2 C. 2F D. F/2

112. The scalar (dot) product of two vectors is:

A. AB cosθ B. AB sinθ C. AB D. A/B

113. The components of a vector A in 2D are:

A. A_x = A cosθ, A_y = A sinθ B. A_x = A sinθ, A_y = A cosθ C. A_x = A tanθ D. A_x = A, A_y = A

114. Which of the following is a base SI unit?

A. Ampere B. Joule C. Watt D. Pascal

115. The vector sum of three vectors can be zero if they form a:

A. Closed triangle B. Straight line C. Open triangle D. Parallelogram

116. The formula for time dilation is:

A. t = t₀ / √(1 - v²/c²) B. t = t₀ √(1 - v²/c²) C. t = t₀ (1 - v/c) D. t = t₀ / (1 - v/c)

117. The Compton effect demonstrates that light behaves as:

A. Particles (photons) B. Waves C. Both waves and particles D. Neither

118. The product of uncertainty in position and momentum is at least:

A. h/4π B. h/2π C. h D. ℏ

119. The law of reflection states that the angle of incidence is equal to the angle of:

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

120. The mirror formula is:

A. 1/f = 1/v + 1/u B. 1/f = 1/v - 1/u C. 1/f = 1/u - 1/v D. 1/v = 1/f + 1/u

121. The phenomenon of splitting of white light into its constituent colors is called:

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

122. The angular acceleration α is defined as:

A. dω/dt B. dθ/dt C. ω/t D. θ/t

123. The distance between two successive crests is called:

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

124. The fundamental frequency of a pipe closed at one end is given by:

A. f = v/(4L) B. f = v/(2L) C. f = 2v/L D. f = v/L

125. If the force and displacement are in the same direction, the work done is:

A. Positive B. Negative C. Zero D. Maximum

126. The elastic potential energy stored in a spring of spring constant k stretched or compressed by x is:

A. U = ½ k x² B. U = k x C. U = ½ k x D. U = k x²

127. Three resistors of 10Ω, 20Ω, and 30Ω are connected in series to a 120V battery. What are the voltage drops across each resistor?

A. 10V, 20V, 30V B. 20V, 30V, 50V C. 30V, 40V, 50V D. 20V, 40V, 60V

128. Two resistors of 2Ω and 4Ω are connected in series to a battery. The same current passes through both. What is the ratio of heat produced in the 4Ω resistor to the 2Ω resistor?

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

129. To measure current in a circuit with a resistance of R using an ammeter, what should be the resistance of the ammeter so that the error in current measurement is less than 1%?

A. 1% of R B. 10% of R C. 0.1% of R D. 0.01% of R

130. In a potentiometer experiment, a cell of EMF 1.5V balances at 60cm. Another cell balances at 40cm on the same potentiometer. What is the EMF of the second cell?

A. 0.5V B. 0.8V C. 0.9V D. 1.0V

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