ECAT (Practice Test) FLP 7 Free Quiz

Chemis

Comput

Englis

Maths

Physic

ECAT (Practice Test) – FLP 7 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 electron is discovered by:

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

3. The mass of a proton 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

4. Rutherford's gold foil experiment led to the discovery of:

A. Nucleus B. Electron C. Neutron D. Proton

5. The radius of the first Bohr orbit of hydrogen (Bohr radius) is approximately:

A. 0.529 Å B. 0.529 nm C. 0.529 pm D. 0.529 μm

6. The maximum number of electrons that can be accommodated in the f-subshell is:

A. 14 B. 10 C. 6 D. 2

7. The electron configuration of Zn (Z=30) is:

A. [Ar] 3d¹⁰ 4s² B. [Ar] 3d¹⁰ 4s¹ C. [Ar] 3d⁹ 4s² D. [Ar] 3d⁸ 4s²

8. The bond formed by the sharing of electrons between atoms is called:

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

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

A. 104.5° B. 109.5° C. 120° D. 180°

10. The shape of BeCl₂ is:

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

11. The shape of NH₃ is:

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

12. The hybridisation of carbon in methane is:

A. sp³ B. sp² C. sp D. sp³d

13. The equilibrium constant is temperature dependent. For an exothermic reaction, increasing temperature will:

A. Decrease K B. Increase K C. No change D. Increase or decrease depending on pressure

14. The equilibrium constant for the reaction H₂ + I₂ ⇌ 2HI is K. What is K for ½H₂ + ½I₂ ⇌ HI?

A. √K B. K² C. K D. 1/K

15. The reaction quotient Q is used to predict:

A. Direction of reaction B. Equilibrium constant C. Rate of reaction D. Activation energy

16. The common ion effect is an application of Le Chatelier's principle. It is observed when:

A. An ion common to an equilibrium is added B. A catalyst is added C. Temperature changes D. Pressure changes

17. A solution with pH > 7 is:

A. Basic B. Acidic C. Neutral D. Salt

18. The Henderson-Hasselbalch equation for a buffer is:

A. pH = pKa + log([salt]/[acid]) B. pH = pKa - log([salt]/[acid]) C. pH = pKa + log([acid]/[salt]) D. pH = pKa - log([acid]/[salt])

19. The equilibrium constant for the dissociation of water is called:

A. Kw B. Ksp C. Ka D. Kb

20. For a weak acid HA, the expression for Ka is:

A. Ka = [H⁺][A⁻]/[HA] B. Ka = [HA]/[H⁺][A⁻] C. Ka = [H⁺][HA]/[A⁻] D. Ka = [A⁻]/[H⁺][HA]

21. The electrode where oxidation occurs is called:

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

22. The Nernst equation relates cell potential to concentrations. For the reaction aA + bB ⇌ cC + dD, the Nernst equation is:

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

23. 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

24. 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

25. A fuel cell converts chemical energy directly into electrical energy with efficiency higher than combustion. The most common fuel cell uses:

A. H₂ and O₂ B. CH₄ and O₂ C. CO and H₂ D. C₂H₅OH and O₂

26. The overall reaction in a hydrogen fuel cell is:

A. 2H₂ + O₂ → 2H₂O B. H₂ + O₂ → H₂O C. 2H₂O → 2H₂ + O₂ D. H₂ + O₂ → H₂O₂

27. In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, the oxidizing agent is:

A. Cu²⁺ B. Zn C. Zn²⁺ D. Cu

28. A substance with lower reduction potential is a better:

A. Reducing agent B. Oxidizing agent C. Electrolyte D. Conductor

29. In electrolysis of molten NaCl, the products are:

A. Na and Cl₂ B. H₂ and Cl₂ C. NaOH and Cl₂ D. Na and H₂

30. In electrolysis of aqueous NaCl, the product at anode is:

A. Cl₂ B. O₂ C. H₂ D. Na

Computer Science 30 MCQs

31. The use of computers in hospitals includes:

A. Patient records and diagnosis B. Only entertainment C. Only cooking D. Only cleaning

32. SQL stands for:

A. Structured Query Language B. Simple Query Language C. Standard Question Language D. System Query Logic

33. The address bus carries:

A. Memory addresses B. Data C. Control signals D. Power

34. Which data model uses tables (relations)?

A. Relational model B. Hierarchical model C. Network model D. Object-oriented model

35. The relational model was proposed by:

A. E.F. Codd B. Charles Bachman C. Peter Chen D. Ted Nelson

36. In a switch statement, the break keyword is used to:

A. Exit the switch block B. Continue to next case C. Exit the program D. Skip to default

37. In binary, what is 1010 + 0101?

A. 1111 (15) B. 1010 C. 0101 D. 10000

38. A decoder is a combinational circuit that:

A. Converts binary code into a specific output line B. Converts data to binary C. Adds numbers D. Stores data

39. What is the output of: printf("%d", 10 + 20);

A. 30 B. 1020 C. Error D. 10+20

40. What is the correct way to declare a constant in C?

A. const int x = 10; B. int const x = 10; C. Both A and B D. constant int x = 10;

41. The file pointer in C is of type:

A. FILE * B. file * C. FILE D. fptr

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

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

43. What does fflush() do?

A. Flushes the output buffer to the file B. Closes the file C. Reads from file D. Sets file pointer

44. What is the size of an int on a typical 32-bit system?

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

45. Which of the following is an output device?

A. Plotter B. Scanner C. Mouse D. Microphone

46. What is the function of a stylus?

A. To input data on touchscreens B. To output data C. To store data D. To print data

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

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

48. The do-while loop condition is checked:

A. After each iteration B. Before each iteration C. Only at start D. Never

49. A form can have subforms to display:

A. Related records from another table B. Unrelated data C. Images D. Graphs

50. A barcode reader is used for:

A. Reading barcodes into a computer B. Displaying barcodes C. Printing barcodes D. Storing barcode data

51. What is the function of a modem?

A. To convert digital signals to analog and vice versa B. To route data packets C. To connect peripherals D. To store data

52. What is ransomware?

A. Malware that encrypts files and demands payment for decryption B. A type of antivirus C. A backup tool D. A word processor

53. Which function returns the lowest value in a range?

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

54. A foreign key is a field that:

A. Links to a primary key in another table B. Uniquely identifies a record C. Is never null D. Is always numeric

55. What is a stored procedure?

A. A saved collection of SQL statements that can be executed B. A type of table C. A query D. A view

56. Which of the following is a version of Microsoft Windows?

A. Windows 10 B. macOS C. Linux D. Android

57. What is the difference between 32-bit and 64-bit Windows?

A. 64-bit supports more memory and is generally faster B. 32-bit is newer C. 64-bit has smaller file sizes D. 32-bit supports more memory

58. Which shortcut keys are used to paste a file in Windows?

A. Ctrl + V B. Ctrl + C C. Ctrl + X D. Ctrl + Z

59. What is the Recycle Bin used for?

A. Temporarily storing deleted files B. Permanently deleting files C. Storing system files D. Storing recycleable files

60. What is the main purpose of a word processor?

A. To create, edit, and format text documents B. To create spreadsheets C. To manage databases D. To create presentations

English 10 MCQs

61. Read the passage: "Regular exercise is crucial for maintaining both physical and mental health. It strengthens the heart, improves circulation, and helps control weight. Exercise also releases endorphins, which reduce stress and boost mood. Experts recommend at least 150 minutes of moderate aerobic activity per week for adults." What is the main idea of the passage?

A. Exercise is important for health and well-being B. Exercise is only for weight loss C. Exercise is harmful D. Exercise is optional

62. The word "crucial" most nearly means:

A. Essential B. Optional C. Difficult D. Unimportant

63. What is the tone of this passage?

A. Factual and informative B. Sarcastic C. Humorous D. Angry

64. What is required for online learning success according to the passage?

A. Self-discipline and time management B. Only internet C. Only a computer D. No effort

65. What does "flexibility" mean?

A. Ability to adapt B. Fixed schedule C. Strict rules D. Inflexibility

66. Which of these is NOT mentioned as a solution?

A. Using more plastic B. Recycling C. Reducing single-use plastic D. Using biodegradable materials

67. What is the author's tone?

A. Concerned and solution-oriented B. Indifferent C. Optimistic without action D. Pessimistic

68. What is the primary purpose?

A. To give dietary recommendations B. To sell food products C. To entertain D. To scare readers

69. What type of travel is mentioned as beneficial?

A. Both domestic and international B. Only international C. Only domestic D. Only long trips

70. Which of the following is NOT a benefit mentioned?

A. Financial gain B. Personal growth C. Reduced stress D. Appreciation of diversity

Maths 30 MCQs

71. What is the value of 3x + 5 if x = 2?

A. 11 B. 10 C. 12 D. 13

72. What is the reciprocal of 2/3?

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

73. If log₂(1) = x, what is x?

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

74. What is the slope of a vertical line?

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

75. What is the y-coordinate of the midpoint of (2,3) and (6,5)?

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

76. What is the derivative of f(x) = √x?

A. 1/(2√x) B. 2√x C. 1/√x D. √x/2

77. What is the derivative of f(x) = x * e^x?

A. e^x (x+1) B. e^x (x-1) C. x e^x D. e^x

78. What is the area under the curve y = x from 0 to 3?

A. 4.5 B. 3 C. 6 D. 9

79. What is ∫ sec x tan x dx?

A. sec x + C B. tan x + C C. csc x + C D. sec x

80. What is ∫ (1/√x) dx?

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

81. What is the integral of 1/(x ln x) dx?

A. ln|ln x| + C B. ln x + C C. 1/(ln x) + C D. ln(ln x) + C

82. Evaluate ∫₀¹ (3x² + 2x) dx.

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

83. Which of the following is an irrational number?

A. √4 B. 3/4 C. √2 D. 0.5

84. Which of the following is a subset of A={1,2,3}?

A. {1,2} B. {1,2,3,4} C. {4} D. {0}

85. What is the modulus of 3+4i?

A. 5 B. 7 C. 1 D. √5

86. What is the binary equivalent of decimal 10?

A. 1010 B. 1011 C. 1100 D. 1001

87. What is the value of x in the equation 2x+3=7?

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

88. What is the 5th term of sequence 1, -1, 1, -1,...?

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

89. What is the 6th term of G.P 2,4,8,16,...?

A. 64 B. 32 C. 128 D. 48

90. What is the median of 3, 5, 7, 9, 11?

A. 7 B. 5 C. 9 D. 8

91. What is the probability of drawing a queen from a deck?

A. 1/13 B. 1/52 C. 4/52 D. 1/4

92. What is the probability of selecting a consonant from the word PROBABILITY?

A. 7/11 B. 4/11 C. 5/11 D. 6/11

93. What is the value of sin 90°?

A. 1 B. 0 C. 1/2 D. √3/2

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

A. sin θ B. cos θ C. tan θ D. cot θ

95. What is the range of sin x?

A. [-1,1] B. [0,1] C. (-1,1) D. all real

96. What is the value of cos(π)?

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

97. What is the value of cos(2x) in terms of cos²x?

A. 2cos²x - 1 B. 1 - 2cos²x C. 2sin²x - 1 D. cos²x - sin²x

98. Which of the following is a vector quantity?

A. Velocity B. Mass C. Temperature D. Energy

99. What is the unit vector in the direction of (3,4)?

A. (3/5, 4/5) B. (3,4) C. (5/3, 5/4) D. (4/5, 3/5)

100. What is the condition for two vectors to be perpendicular?

A. Their dot product is zero B. Their cross product is zero C. Their sum is zero D. Their magnitudes are equal

Physics 30 MCQs

101. The unit of resistance is:

A. Ohm B. Volt per ampere C. Both A and B D. Watt

102. The equivalent resistance of two resistors R1 and R2 in series is:

A. R1 + R2 B. R1 R2 / (R1+R2) C. 1/R1 + 1/R2 D. R1 - R2

103. A galvanometer is an instrument used to detect:

A. Small currents B. Voltage C. Resistance D. Power

104. Paramagnetic materials have relative permeability μ_r:

A. Slightly greater than 1 B. Slightly less than 1 C. Much greater than 1 D. Equal to 1

105. The electric field intensity at a point is defined as the force per unit:

A. Positive test charge B. Negative test charge C. Area D. Volume

106. Electric field lines are perpendicular to the surface of a:

A. Conductor B. Insulator C. Semiconductor D. Dielectric

107. If the distance between the plates of a capacitor is doubled, its capacitance becomes:

A. Half B. Double C. Four times D. Same

108. A capacitor of capacitance C is charged to potential V. The charge on it is:

A. Q = CV B. Q = V/C C. Q = C/V D. Q = CV²

109. When a dielectric is inserted in a charged capacitor (disconnected from battery), the potential difference:

A. Decreases B. Increases C. Remains same D. Becomes zero

110. The gravitational field due to a point mass m at distance r is:

A. g = Gm/r² B. g = Gm/r C. g = G/r² D. g = Gm/r

111. For a monoatomic ideal gas, C_v = 3/2 R. The value of γ = C_p/C_v is:

A. 5/3 B. 3/5 C. 7/5 D. 4/3

112. The SI unit of force is:

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

113. Power is defined as:

A. Work done per unit time B. Force per unit time C. Energy per unit distance D. Force × velocity

114. 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

115. The prefix "milli" represents:

A. 10⁻³ B. 10³ C. 10⁶ D. 10⁻⁶

116. The wave nature of electrons was experimentally confirmed by:

A. Davisson and Germer B. Compton C. Einstein D. Planck

117. The general theory of relativity deals with:

A. Gravity and acceleration B. Constant velocity C. Electromagnetism D. Quantum effects

118. 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

119. Total internal reflection occurs when light travels from:

A. Denser to rarer medium and angle of incidence > critical angle B. Rarer to denser medium C. Denser to rarer medium at any angle D. Rarer to denser medium at critical angle

120. 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

121. The maximum displacement of a particle from its equilibrium position is called:

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

122. Constructive interference occurs when the path difference is:

A. Integral multiple of wavelength B. Half-integer multiple C. Zero D. Quarter wavelength

123. The fundamental frequency of a string fixed at both ends is given by:

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

124. The Doppler effect is the change in frequency due to relative motion. If the source moves towards the observer, the observed frequency:

A. Increases B. Decreases C. Remains same D. Zero

125. When a wave reflects from a fixed boundary, the reflected wave is:

A. Inverted (phase change of π) B. Not inverted C. Same phase D. Absorbed

126. The bending of a wave as it passes from one medium to another is called:

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

127. The work done by a constant force is given by:

A. W = F d cosθ B. W = F d C. W = F d sinθ D. W = F/d

128. The work done by a conservative force is independent of:

A. Path taken B. Initial and final positions C. Mass D. Speed

129. If the current in a conductor is doubled and its cross-sectional area is halved, what happens to the drift velocity of electrons?

A. 2 times B. 3 times C. 4 times D. 8 times

130. A 10Ω and a 20Ω resistor are connected in series to a battery. What is the ratio of power dissipated in the 10Ω resistor to the 20Ω resistor?

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

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