ECAT (Practice Test) FLP 10 Free Quiz

Chemis

Comput

Englis

Maths

Physic

ECAT (Practice Test) – FLP 10 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 atomic model proposed by Rutherford was:

A. Nuclear model B. Plum pudding model C. Planetary model D. Quantum model

2. The ionization energy of hydrogen is:

A. 13.6 eV B. 10.2 eV C. 3.4 eV D. 1.51 eV

3. The shape of an s orbital is:

A. Spherical B. Dumbbell C. Complex D. Double dumbbell

4. The aufbau principle states that electrons fill orbitals in order of:

A. Increasing energy B. Decreasing energy C. Increasing size D. Increasing distance from nucleus

5. The number of unpaired electrons in nitrogen atom is:

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

6. The Lyman series of hydrogen lies in the:

A. Ultraviolet region B. Visible region C. Infrared region D. Microwave region

7. The dual nature of electrons was proposed by:

A. De Broglie B. Bohr C. Rutherford D. Thomson

8. The total number of orbitals in a shell with n=4 is:

A. 16 B. 4 C. 8 D. 32

9. The octet rule states that atoms tend to have how many electrons in their valence shell?

A. 8 B. 2 C. 18 D. 6

10. The shape of CO₂ is:

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

11. The bond in HF is:

A. Polar covalent B. Nonpolar covalent C. Ionic D. Hydrogen

12. The bond in graphite is:

A. Covalent and van der Waals B. Ionic C. Metallic D. Hydrogen

13. The hydrogen bond is strongest in:

A. HF B. H₂O C. NH₃ D. CH₄

14. 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

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

A. sp B. sp² C. sp³ D. sp³d

16. The hybridisation of nitrogen in ammonia is:

A. sp³ B. sp² C. sp D. sp³d

17. The bond angle in SO₂ is approximately:

A. 119° B. 104.5° C. 109.5° D. 120°

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

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

19. A state in which the rate of forward reaction equals the rate of reverse reaction is called:

A. Chemical equilibrium B. Chemical kinetics C. Thermodynamic equilibrium D. Dynamic equilibrium

20. 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

21. The solubility product constant Ksp is used for:

A. Sparingly soluble salts B. Strong acids C. Gases D. All reactions

22. For CaCO₃(s) ⇌ Ca²⁺(aq) + CO₃²⁻(aq), the Ksp expression is:

A. Ksp = [Ca²⁺][CO₃²⁻] B. Ksp = [CaCO₃] C. Ksp = [Ca²⁺] + [CO₃²⁻] D. Ksp = [Ca²⁺]/[CO₃²⁻]

23. The pOH of a solution is related to pH by:

A. pH + pOH = 14 B. pH - pOH = 14 C. pH × pOH = 14 D. pH / pOH = 14

24. The acid dissociation constant Ka is a measure of:

A. Acid strength B. Base strength C. Salt hydrolysis D. pH

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

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

26. An electrochemical cell that uses electrical energy to drive a non-spontaneous reaction is called:

A. Electrolytic cell B. Galvanic cell C. Fuel cell D. Concentration cell

27. The cathode in a lead-acid battery is made of:

A. Lead dioxide (PbO₂) B. Lead (Pb) C. Lead sulfate D. Graphite

28. The term "oxidation" originally meant:

A. Addition of oxygen B. Loss of electrons C. Loss of hydrogen D. Gain of electrons

29. The oxidation number of hydrogen in most compounds is:

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

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

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

Computer Science 30 MCQs

31. Computers are used in the retail industry for:

A. Inventory and point-of-sale systems B. Only packing goods C. Only displaying products D. Only cleaning stores

32. Computers are used in the food industry for:

A. Inventory and recipe management B. Only cooking food C. Only serving food D. Only cleaning kitchens

33. A client is:

A. A computer that requests services from a server B. A server C. A network cable D. A router

34. The instruction register (IR) holds:

A. The current instruction being executed B. The next instruction C. Data from memory D. The result of ALU

35. RISC architecture emphasizes:

A. Simple, fixed-length instructions B. Complex instructions C. Many instructions D. Variable instruction length

36. CISC architecture emphasizes:

A. Complex, variable-length instructions B. Simple instructions C. Fixed instruction length D. Pipeline

37. The binary number system uses base:

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

38. What is metadata?

A. Data about data B. The actual data C. A type of file D. A hardware component

39. The binary representation of decimal 5 is:

A. 101 B. 100 C. 110 D. 111

40. What is a "packet" in data communication?

A. A unit of data sent over a network B. A type of cable C. A storage device D. A programming error

41. A network switch forwards data based on:

A. MAC addresses B. IP addresses C. Port numbers D. Hostnames

42. Entity integrity means:

A. Every table has a primary key B. Foreign keys match C. Data types are correct D. No null values allowed

43. An update anomaly occurs when:

A. Changing one copy of data leaves others unchanged B. Data is deleted accidentally C. Data is inserted incorrectly D. Data is sorted

44. What is the main purpose of data integrity?

A. To ensure correctness of data B. To store large data C. To speed up access D. To compress data

45. The switch statement is preferred over if-else if when:

A. Testing a single variable against many constants B. Testing complex conditions C. Using loops D. Defining functions

46. The binary addition of 1 + 1 results in:

A. 10 (2) B. 0 C. 1 D. 11

47. Which operator is used for assignment in C?

A. = B. == C. != D. <=

48. Which operator is used for logical AND in C?

A. && B. || C. ! D. &

49. Which function is used for formatted output to a file?

A. fprintf() B. fscanf() C. fputs() D. fwrite()

50. The static keyword in a function variable means:

A. The variable retains its value between calls B. The variable is local C. The variable is global D. The variable is constant

51. The first C program usually prints:

A. Hello, World! B. Hello World C. Hi D. Nothing

52. Which of the following is a preprocessor directive?

A. #include B. int main() C. printf() D. return 0;

53. Which network device connects different networks and uses IP addresses to route data?

A. Router B. Switch C. Hub D. Repeater

54. Which device is used to output audio?

A. Speaker B. Microphone C. Scanner D. Keyboard

55. Which of the following is a valid primary key option?

A. AutoNumber, a single field, or multiple fields (composite) B. Only AutoNumber C. Only a single field D. Only multiple fields

56. What is a digital signature used for?

A. To verify the authenticity and integrity of digital messages or documents B. To encrypt files C. To store passwords D. To connect to Wi-Fi

57. Which SQL statement is used to add new records to a table?

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

58. Which SQL statement is used to modify existing records?

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

59. What is the purpose of the Taskbar in Windows?

A. To show running applications and system tray B. To display the desktop C. To open File Explorer D. To shut down the computer

60. What is a driver in Windows?

A. Software that enables communication with hardware devices B. A type of application C. A system update D. A file format

English 10 MCQs

61. What does exercise strengthen according to the passage?

A. The heart B. The lungs C. The liver D. The kidneys

62. What has increased in popularity according to the passage?

A. Online learning B. Traditional learning C. Outdoor activities D. Traveling

63. How do friends help reduce stress?

A. By providing support B. By ignoring problems C. By creating conflicts D. By distancing themselves

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

A. Increased wealth B. Emotional support C. Reduced stress D. Personal growth

65. What does "mindfully" mean?

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

66. What does kindness do according to the passage?

A. Reduces stress and improves mood B. Increases stress C. Causes conflict D. Leads to sadness

67. What is a problem mentioned in education?

A. Lack of access for many children B. Too many schools C. Too much funding D. Overqualified teachers

68. What does "access" mean?

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

69. What does "well-being" mean?

A. Good health and happiness B. Illness C. Stress D. Pain

70. What is the author's tone?

A. Educational and concerned B. Indifferent C. Sarcastic D. Humorous

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. What is the value of 4! (4 factorial)?

A. 24 B. 16 C. 12 D. 20

74. What is the exponential form of log₃ 81 = 4?

A. 3⁴ = 81 B. 81⁴ = 3 C. 4³ = 81 D. 3⁸¹ = 4

75. What is the distance between points (2,3) and (5,7)?

A. 5 B. 4 C. 3 D. √5

76. What is the slope of the line 2x - 5y = 10?

A. 2/5 B. -2/5 C. 5/2 D. -5/2

77. What is the area of the triangle with vertices (1,2), (4,2), and (1,5)?

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

78. What is the derivative of f(x) = 0.5x²?

A. x B. 0.5x C. x² D. 2x

79. What is ∫ e^{2x} dx?

A. (1/2)e^{2x} + C B. 2e^{2x} + C C. e^{2x} + C D. e^{2x}/2

80. What is ∫ (x² + 1) dx?

A. x³/3 + x + C B. x³/3 + C C. x³/3 + x D. x² + x

81. What is ∫ (4x³ - 2x) dx?

A. x⁴ - x² + C B. x⁴ - 2x² + C C. 4x⁴ - x² + C D. x⁴ - x²

82. Find the integral of f(x)=x²+3x from 0 to 2.

A. 26/3 B. 14/3 C. 10/3 D. 8

83. Evaluate ∫₀^π/2 sin x dx.

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

84. Find the area between y = x and y = x² from x=0 to 1.

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

85. What is the value of | -5 |?

A. 5 B. -5 C. 0 D. 10

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

A. {1,2} B. {1,2,3} C. {1,2,3,4} D. ∅

87. Which of the following is a transcendental number?

A. π B. √2 C. 1/3 D. 0.5

88. Which of the following sequences is arithmetic?

A. 2, 4, 6, 8 B. 2, 4, 8, 16 C. 2, 6, 18, 54 D. 1, 4, 9, 16

89. What is the sum of infinite G.P 1 + 1/3 + 1/9 + 1/27 + ...?

A. 1.5 B. 1 C. 2 D. 1.333

90. What is the sum of the first 8 terms of A.P 1, 2, 3, ...?

A. 36 B. 28 C. 40 D. 32

91. What is the common difference of sequence 12, 8, 4, 0?

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

92. What is the probability of rolling an even number on a dice?

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

93. What is the median of 1, 2, 3, 4, 5, 6?

A. 3.5 B. 3 C. 4 D. 2.5

94. 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

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

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

96. What is the probability of drawing a black card from a deck?

A. 1/2 B. 1/4 C. 26/52 D. Both A and C

97. What is the scalar product of i and j?

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

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

A. 2 B. 3 C. √13 D. 1

99. What is the unit vector in direction of (1,1,1)?

A. (1/√3, 1/√3, 1/√3) B. (1,1,1) C. (√3,√3,√3) D. None

100. What is the volume of a parallelepiped with edges A,B,C?

A. |A·(B×C)| B. |A×B|C C. |A||B||C| D. |A·B|C

Physics 30 MCQs

101. The resistance of a conductor depends on all EXCEPT:

A. Applied voltage B. Length C. Cross-sectional area D. Material

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

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

103. In a balanced Wheatstone bridge, the galvanometer current is:

A. Zero B. Maximum C. Half D. Infinite

104. When a cell is short-circuited, the current is:

A. Maximum B. Zero C. Minimum D. Equal to EMF

105. The terminal voltage of a cell is less than its EMF when:

A. Current is drawn B. It is open-circuited C. It is short-circuited D. No current flows

106. Drift velocity of electrons in a conductor is typically:

A. Very small (mm/s) B. Very large (close to c) C. Zero D. Infinite

107. The direction of magnetic field around a straight current-carrying wire is given by:

A. Right-hand thumb rule B. Left-hand rule C. Fleming's rule D. Lenz's law

108. The cyclotron frequency is given by:

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

109. The SI unit of electric charge is:

A. Coulomb B. Ampere C. Volt D. Ohm

110. 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

111. The escape velocity from Earth is approximately:

A. 11.2 km/s B. 7.9 km/s C. 3 km/s D. 8 km/s

112. The molar specific heat at constant volume C_v is related to C_p by:

A. C_p - C_v = R B. C_v - C_p = R C. C_p + C_v = R D. C_p / C_v = R

113. The SI unit of momentum is:

A. kg·m/s B. N·s C. Both A and B D. J

114. The impulse-momentum theorem states that impulse equals:

A. Change in momentum B. Change in kinetic energy C. Change in velocity D. Change in acceleration

115. The general theory of relativity deals with:

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

116. 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

117. The angular velocity ω is defined as:

A. dθ/dt B. dω/dt C. θ/t D. ω/t

118. If no external torque acts on a system, its angular momentum remains:

A. Constant B. Zero C. Increasing D. Decreasing

119. The power delivered by a torque is:

A. P = τ ω B. P = F v C. P = τ/ω D. P = I α

120. The time for one complete wave to pass a point is called:

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

121. The speed of sound in air at room temperature is approximately:

A. 343 m/s B. 3 × 10⁸ m/s C. 1500 m/s D. 340 km/h

122. If the source moves away from the observer, the observed frequency:

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

123. The intensity of a wave is proportional to the square of its:

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

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

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

125. A ball is dropped from a height h. Just before hitting the ground, its kinetic energy is (ignoring air resistance):

A. mgh B. ½ mgh C. 2mgh D. mgh²

126. A Wheatstone bridge has arms P = 10Ω, Q = 20Ω, R = 30Ω, and S is unknown. What value of S makes the bridge balanced?

A. 15Ω B. 30Ω C. 60Ω D. 90Ω

127. A 3Ω and a 6Ω resistor are connected in parallel across a battery. What is the ratio of power dissipated in the 3Ω resistor to the 6Ω resistor?

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

128. To measure voltage across a resistance R using a voltmeter, what should be the resistance of the voltmeter so that the error in voltage measurement is less than 1%?

A. 1% of R B. 10% of R C. 100R D. 1000R

129. A battery has an EMF of 12V and internal resistance 0.2Ω. When a current of 5A is drawn, what is the terminal voltage?

A. 10V B. 11V C. 11.5V D. 12V

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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