ECAT (Practice Test) FLP 19 Free Quiz

Chemis

Comput

Englis

Maths

Physic

ECAT (Practice Test) – FLP 19 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 nucleus of an atom contains:

A. Protons and neutrons B. Protons and electrons C. Neutrons and electrons D. Protons only

2. The quantum number that defines the main energy level is:

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

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

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

4. The bond angle in ammonia (NH₃) is approximately:

A. 107° B. 109.5° C. 104.5° D. 120°

5. The shape of BeCl₂ is:

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

6. The bond in graphite is:

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

7. The bond order in N₂ molecule is:

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

8. The bond length decreases as bond order:

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

9. The hybridisation of carbon in methane is:

A. sp³ B. sp² C. sp D. sp³d

10. The hybridisation of beryllium in BeCl₂ is:

A. sp B. sp² C. sp³ D. sp³d

11. The hybridisation of oxygen in water is:

A. sp³ B. sp² C. sp D. sp³d

12. The hybridisation of nitrogen in ammonia is:

A. sp³ B. sp² C. sp D. sp³d

13. The reaction quotient Q is used to predict:

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

14. The solubility product constant Ksp is used for:

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

15. If the ionic product exceeds Ksp, precipitation will:

A. Occur B. Not occur C. Be at equilibrium D. Dissolve more

16. A solution with pH = 7 is:

A. Neutral B. Acidic C. Basic D. Strong acid

17. The pH of a 0.1 M acetic acid (Ka=1.8×10⁻⁵) is approximately:

A. 2.87 B. 1.87 C. 3.87 D. 4.87

18. A buffer solution is most resistant to pH change when the ratio of salt to acid is close to:

A. 1 B. 0.1 C. 10 D. 0

19. The solubility of AgCl in water is decreased by the addition of NaCl because:

A. Common ion effect (Cl⁻) B. Acid-base reaction C. Temperature change D. Complex formation

20. 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

21. 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

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 electrode where oxidation occurs is called:

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

24. The standard reduction potential of Cu²⁺/Cu is +0.34 V. This means Cu²⁺ is reduced more:

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

25. The cell potential (EMF) of a galvanic cell is given by:

A. E_cell = E_cathode - E_anode B. E_cell = E_anode - E_cathode C. E_cell = E_anode + E_cathode D. E_cell = E_anode / E_cathode

26. In the electrolysis of water, oxygen gas is produced at the:

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

27. The cathodic reaction in rusting of iron is:

A. O₂ + 2H₂O + 4e⁻ → 4OH⁻ B. Fe → Fe²⁺ + 2e⁻ C. Fe²⁺ + 2e⁻ → Fe D. 4OH⁻ → O₂ + 2H₂O + 4e⁻

28. Sacrificial protection is used to prevent corrosion of iron by attaching a more reactive metal such as:

A. Magnesium B. Copper C. Silver D. Gold

29. The Nernst equation can be used to calculate the potential of an electrode under non-standard conditions. For Zn²⁺ + 2e⁻ ⇌ Zn, the Nernst equation is:

A. E = E° - (0.0592/2) log (1/[Zn²⁺]) B. E = E° + (0.0592/2) log (1/[Zn²⁺]) C. E = E° - (0.0592/2) log [Zn²⁺] D. E = E° + (0.0592/2) log [Zn²⁺]

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. The use of computers in hospitals includes:

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

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. A database is defined as:

A. A collection of organized data B. A collection of random data C. A computer program D. A type of hardware

34. Which type of database stores data as documents?

A. Document-oriented (NoSQL) B. Relational C. Hierarchical D. Network

35. Which of these is a transmission mode?

A. Simplex, half-duplex, full-duplex B. Star, bus, ring C. TCP, UDP D. HTTP, FTP

36. Data integrity means:

A. Accuracy and consistency of data B. Speed of data access C. Amount of data D. Type of database

37. An insertion anomaly occurs when:

A. Cannot insert data without additional unrelated data B. Data is duplicated C. Data is missing D. Data is sorted incorrectly

38. A relationship in an ER diagram is represented by:

A. A diamond B. A rectangle C. An ellipse D. A line

39. Generalization is the process of:

A. Creating a superclass from subclasses B. Creating subclasses from a superclass C. Combining two entities D. Deleting entities

40. In the hierarchical model, data is organized as:

A. A tree structure B. A graph C. A table D. A network

41. What is the output: int x = 5; switch(x) { case 1: print("One"); case 2: print("Two"); default: print("Default"); } (no break)

A. Default B. One C. Two D. OneTwo

42. 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

43. A flip-flop is a:

A. Bi-stable multivibrator (memory element) B. Logic gate C. Arithmetic unit D. Decoder

44. In C, the int data type typically occupies:

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

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

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

46. What is the output of this code: int x = 5; void change(int *a) { *a = 10; } int main() { change(&x); printf("%d", x); return 0; }

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

47. Which version of IP uses 32-bit addresses?

A. IPv4 B. IPv6 C. IPX D. AppleTalk

48. Which network device amplifies or regenerates a signal?

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

49. A label control in a form is used for:

A. Displaying static text B. Entering data C. Calculating values D. Printing data

50. A form can have subforms to display:

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

51. The Detail section of a form displays:

A. The data from the current record B. The form header C. The form footer D. Page numbers

52. Which port is used for video output to a monitor?

A. HDMI B. USB C. Ethernet D. Audio jack

53. Which function is used to add a range of numbers in Excel?

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

54. A formula in Excel always starts with:

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

55. In a relational database, a table is also known as:

A. A relation B. A file C. A record D. A field

56. What is the purpose of the SELECT statement in SQL?

A. To retrieve data from a database B. To insert data C. To update data D. To delete data

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 copy a file in Windows?

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

59. 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

60. Which feature is used to check spelling and grammar in Word?

A. Spell Check B. Thesaurus C. Grammar Check D. Both A and C

English 10 MCQs

61. Exercise helps control which of the following?

A. Weight B. Blood pressure C. Temperature D. Sleep

62. Read the passage: "Online learning has become increasingly popular in recent years. It offers flexibility, allowing students to study at their own pace and from anywhere with an internet connection. It also provides access to a wider range of courses and resources. However, it requires self-discipline and good time management to succeed." What is the main idea?

A. Online learning offers benefits but demands self-discipline B. Online learning is inferior to traditional learning C. Online learning is only for technology experts D. Online learning has no drawbacks

63. What does "mindfully" mean?

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

64. What is a drawback of renewable energy mentioned?

A. High initial costs B. Unreliability C. Pollution D. Noise

65. What is an example of a kind gesture mentioned?

A. A smile or helping hand B. A gift of money C. A large party D. A long speech

66. Which word means the opposite of "kindness"?

A. Cruelty B. Gentleness C. Generosity D. Patience

67. What skill does education provide?

A. Critical thinking B. Only memorization C. Only physical strength D. Only social skills

68. What is the author's tone?

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

69. Read the passage: "Traveling exposes people to new cultures, cuisines, and perspectives. It broadens the mind, reduces stress, and creates lasting memories. Whether domestic or international, travel encourages personal growth and helps people appreciate diversity. Even short trips can have a positive impact on mental health." What is the main idea?

A. Travel has positive effects on personal growth and mental well-being B. Travel is only for the wealthy C. Travel is a waste of time D. Travel causes stress

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. Simplify: √75

A. 5√3 B. 3√5 C. 5√2 D. √75

72. What is the value of 0! (zero factorial)?

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

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

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

74. Find the equation of the line passing through (1,2) and (3,6).

A. y = 2x B. y = 2x + 1 C. y = 2x - 1 D. y = 2x + 2

75. What is the distance between the points (1,2) and (4,6)?

A. 5 B. √13 C. √25 D. 4

76. What is the center of the circle (x+1)² + (y-2)² = 16?

A. (-1,2) B. (1,-2) C. (-1,-2) D. (1,2)

77. What is the derivative of f(x) = tan x?

A. sec² x B. csc² x C. -sec² x D. sec x tan x

78. What is the second derivative of f(x) = x³ - 3x²?

A. 6x - 6 B. 6x - 6 C. 3x² - 6x D. 6x

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

A. x B. 0.5x C. x² D. 2x

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

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

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

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

82. 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

83. Which of the following is not a natural number?

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

84. Which of the following is a rational number?

A. √2 B. √3 C. 1/3 D. π

85. What is the absolute value of -3 + 4i?

A. 5 B. 7 C. 1 D. √13

86. Which of the following is a transcendental number?

A. π B. √2 C. 1/3 D. 0.5

87. What is the multiplicative inverse of 3/4?

A. 4/3 B. 3/4 C. 1 D. 0

88. What is the sum of the first 5 terms of the sequence 2,4,6,8,10?

A. 30 B. 20 C. 25 D. 35

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

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

90. Find the sum of the series 2+4+6+...+20.

A. 110 B. 90 C. 100 D. 120

91. What is the probability of getting exactly two heads in three tosses?

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

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 drawing a spade from a deck?

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

94. What is the value of sin 180°?

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

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

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

96. What is the range of tan x?

A. All real numbers B. [-1,1] C. [0,∞) D. (-1,1)

97. What is the value of cos(5π/6)?

A. -√3/2 B. -1/2 C. √3/2 D. 1/2

98. What is the vector product of j and i?

A. -k B. k C. 0 D. j

99. If A=(2,3,4) and B=(1,0,2), find A+B.

A. (3,3,6) B. (3,3,6) C. (1,3,2) D. (2,3,4)

100. What is the scalar triple product of i, j, k?

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

Physics 30 MCQs

101. The rate of flow of electric charge is called:

A. Electric current B. Electric potential C. Resistance D. Capacitance

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

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

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

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

104. 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

105. 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

106. The energy consumed by a 100 W bulb in 10 hours is:

A. 1 kWh B. 10 kWh C. 100 kWh D. 0.1 kWh

107. The SI unit of magnetic field (flux density) is:

A. Tesla B. Weber C. Henry D. Gauss

108. The magnetic field at the centre of a circular coil carrying current I, radius R, with N turns is:

A. B = μ₀ N I / (2R) B. B = μ₀ I / (2R) C. B = μ₀ N I / R D. B = μ₀ N I / (4πR)

109. The SI unit of electric potential is:

A. Volt B. Joule C. Coulomb D. Newton

110. If the area of plates of a capacitor is doubled, its capacitance becomes:

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

111. If the mass of one of the two objects is doubled, the gravitational force becomes:

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

112. 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

113. The change in internal energy ΔU of a system is given by:

A. ΔU = Q - W B. ΔU = Q + W C. ΔU = W - Q D. ΔU = -Q - W

114. The internal energy of an ideal gas depends only on:

A. Temperature B. Pressure C. Volume D. All of them

115. The efficiency of the heat engine in question above is:

A. 60% B. 40% C. 100% D. 0%

116. The SI unit of force is:

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

117. Gravitational potential energy near Earth's surface is:

A. U = mgh B. U = ½mgh C. U = mg/h D. U = gh

118. The prefix "kilo" represents:

A. 10³ B. 10² C. 10⁶ D. 10⁻³

119. 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

120. The formula for length contraction is:

A. L = L₀ √(1 - v²/c²) B. L = L₀ / √(1 - v²/c²) C. L = L₀ (1 - v/c) D. L = L₀ / (1 - v/c)

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

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

122. The speed of light in vacuum is approximately:

A. 3 × 10⁸ m/s B. 3 × 10⁶ m/s C. 3 × 10¹⁰ m/s D. 3 × 10⁹ m/s

123. The relation between linear velocity v and angular velocity ω is:

A. v = ω r B. v = r/ω C. v = ω/r D. v = ω r²

124. The angular acceleration is related to the tangential acceleration a_t by:

A. a_t = α r B. a_t = α/r C. a_t = r/α D. a_t = α r²

125. A stationary wave is formed by the superposition of two waves of the same frequency and amplitude traveling in:

A. Opposite directions B. Same direction C. Perpendicular directions D. Any directions

126. The points with maximum displacement in a standing wave are called:

A. Antinodes B. Nodes C. Crests D. Troughs

127. A spring of spring constant 200 N/m is compressed by 0.1 m. The potential energy stored is:

A. 1 J B. 2 J C. 10 J D. 0.5 J

128. 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

129. 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

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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