Engineering Entrance

Q. Find ∫ (5x^4) dx. (2020)
  • A. x^5 + C
  • B. x^5 + 5C
  • C. x^5 + 1
  • D. 5x^5 + C
Q. Find ∫ (6x^2 - 4) dx. (2019)
  • A. 2x^3 - 4x + C
  • B. 2x^3 - 2x + C
  • C. 2x^3 - 4 + C
  • D. 3x^3 - 4x + C
Q. Find ∫ e^x dx. (2022)
  • A. e^x + C
  • B. e^x
  • C. x e^x + C
  • D. ln(e^x) + C
Q. For a monatomic ideal gas, the ratio of specific heats (γ) is approximately: (2019)
  • A. 1.5
  • B. 1.67
  • C. 1.4
  • D. 2
Q. For a process at constant volume, which of the following is true? (2023)
  • A. Work done is zero
  • B. Heat added equals change in internal energy
  • C. Both A and B
  • D. None of the above
Q. For a reaction with a rate constant of 0.02 M⁻¹s⁻¹ and initial concentration of 0.5 M, what is the time taken to reach 0.25 M in a second-order reaction? (2023)
  • A. 25 s
  • B. 50 s
  • C. 10 s
  • D. 20 s
Q. For a reaction with an activation energy of 50 kJ/mol, what is the rate constant at 300 K if R = 8.314 J/(mol·K)? (2022)
  • A. 0.001 M/s
  • B. 0.01 M/s
  • C. 0.1 M/s
  • D. 1 M/s
Q. For a reaction with an activation energy of 50 kJ/mol, what will happen to the rate if the temperature is increased by 20°C? (2022)
  • A. Rate decreases
  • B. Rate remains the same
  • C. Rate increases significantly
  • D. Rate increases slightly
Q. For a zero-order reaction, if the initial concentration is 0.5 M and the rate constant is 0.1 M/s, how long will it take to reach 0 M? (2019)
  • A. 5 s
  • B. 10 s
  • C. 15 s
  • D. 20 s
Q. For a zero-order reaction, if the initial concentration is 0.5 M and the rate constant is 0.1 M/s, how long will it take to reach 0.2 M? (2021)
  • A. 3 s
  • B. 5 s
  • C. 2 s
  • D. 4 s
Q. For an ideal gas, the work done during an isobaric process is given by which formula? (2022)
  • A. W = PΔV
  • B. W = nRT
  • C. W = ΔU + Q
  • D. W = 0
Q. For an ideal gas, which law relates pressure, volume, and temperature? (2023) 2023
  • A. Boyle's Law
  • B. Charles's Law
  • C. Ideal Gas Law
  • D. Avogadro's Law
Q. For the equation x² + 6x + k = 0 to have real roots, what is the minimum value of k? (2021)
  • A. -9
  • B. -6
  • C. 0
  • D. 6
Q. For the exothermic reaction A + B ⇌ C + heat, what will happen if the temperature is increased? (2020)
  • A. Equilibrium will shift to the right
  • B. Equilibrium will shift to the left
  • C. No change in equilibrium
  • D. Equilibrium will shift to the center
Q. For the function f(x) = -x^2 + 4x + 1, find the x-coordinate of the vertex. (2023)
  • A. 2
  • B. 4
  • C. 1
  • D. 3
Q. For the function f(x) = 2x^3 - 9x^2 + 12x, find the critical points. (2022)
  • A. (0, 0)
  • B. (1, 5)
  • C. (2, 0)
  • D. (3, 3)
Q. For the function f(x) = 2x^3 - 9x^2 + 12x, find the local maxima. (2023) 2023
  • A. (1, 5)
  • B. (2, 6)
  • C. (3, 3)
  • D. (0, 0)
Q. For the function f(x) = 3x^2 - 12x + 7, find the minimum value. (2022)
  • A. -5
  • B. -4
  • C. -3
  • D. -2
Q. For the function f(x) = 3x^2 - 12x + 7, find the x-coordinate of the vertex. (2022)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. For the function f(x) = 3x^2 - 12x + 9, find the vertex. (2021)
  • A. (2, 3)
  • B. (3, 0)
  • C. (0, 9)
  • D. (1, 6)
Q. For the function f(x) = x^2 + 2x, find the local maximum. (2022)
  • A. -1
  • B. 0
  • C. 1
  • D. 2
Q. For the matrix E = [[1, 2, 3], [0, 1, 4], [5, 6, 0]], find det(E). (2021)
  • A. -24
  • B. 24
  • C. 0
  • D. 12
Q. For the matrix E = [[1, 2], [2, 4]], what is the determinant? (2021)
  • A. 0
  • B. 1
  • C. 2
  • D. 4
Q. For the quadratic equation x² + 6x + k = 0 to have real roots, what is the minimum value of k? (2021)
  • A. -9
  • B. -6
  • C. 0
  • D. 6
Q. For the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g), what will happen if the volume of the container is increased? (2020) 2020
  • A. Equilibrium shifts to the right
  • B. Equilibrium shifts to the left
  • C. No change in equilibrium
  • D. Reaction stops
Q. For the reaction N2(g) + 3H2(g) ⇌ 2NH3(g), what happens to the equilibrium if the volume of the container is decreased? (2020)
  • A. Equilibrium shifts to the right
  • B. Equilibrium shifts to the left
  • C. No change in equilibrium
  • D. Equilibrium shifts to the side with more moles
Q. For the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g), what will happen if the volume of the container is increased? (2020)
  • A. Equilibrium shifts to the right
  • B. Equilibrium shifts to the left
  • C. No change in equilibrium
  • D. Equilibrium shifts to the center
Q. For which value of m does the equation x² - mx + 9 = 0 have roots 3 and 3? (2023)
  • A. 6
  • B. 9
  • C. 3
  • D. 0
Q. For which value of p does the equation x² + px + 4 = 0 have roots 2 and -2? (2022)
  • A. 0
  • B. 4
  • C. -4
  • D. 2
Q. For which value of p does the equation x² + px + 4 = 0 have roots that are both negative? (2022)
  • A. -8
  • B. -6
  • C. -4
  • D. -2
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