HAT Subject (Chemical Engineering) FLP 3 Free Quiz

HAT Subject (Chemical Engineering) – FLP 3

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Chemic

HAT Subject (Chemical Engineering) – FLP 3 consists of 100 MCQs covering 1 subjects. You have 120 minutes to complete it. Start with the easier questions and manage your time wisely. Good luck!

Chemical Engineering 100 MCQs

1. What is chemical plant design?

A. Designing and planning chemical plants B. Fluid flow and pressure C. Thermal energy transfer D. Separation processes

2. What shows detailed piping and instrumentation?

A. PFD B. Block diagram C. Layout diagram D. P&ID

3. What determines the sequence of operations and equipment sizes?

A. Mechanical design B. Process design C. Structural design D. Electrical design

4. What is the arrangement of equipment and facilities in a plant?

A. PFD B. P&ID C. Plant layout D. Piping

5. What is the ongoing cost to operate a plant?

A. Operating cost B. Capital cost C. Maintenance cost D. Utility cost

6. What is the time required to recover the initial investment?

A. ROI B. NPV C. Payback period D. IRR

7. What is the sum of discounted cash flows?

A. ROI B. NPV C. IRR D. Payback period

8. What does safety in chemical plant design include?

A. Process design B. Mechanical design C. Layout D. Safety

9. What analysis is used to identify potential failures?

A. FMEA B. HAZOP C. Risk assessment D. Safety audit

10. What regulations in chemical plant design address emissions and waste?

A. Safety B. Environmental C. Process D. Mechanical

11. What is used for heat integration in plant design?

A. HAZOP B. FMEA C. Risk assessment D. Pinch analysis

12. What includes PFDs, P&IDs, and equipment specifications?

A. Process design package B. Mechanical design C. Structural design D. Electrical design

13. What type of process has no accumulation of mass or energy?

A. Transient B. Unsteady-state C. Steady-state D. Batch

14. What is a process with some inputs and outputs while others are batch?

A. Continuous B. Batch C. Semi-batch D. Steady-state

15. What is the ratio of volume of a component to total volume?

A. Volume fraction B. Mole fraction C. Mass fraction D. Weight fraction

16. What is the reactant that is not completely consumed?

A. Limiting reactant B. Excess reactant C. Catalyst D. Product

17. What removes a portion of the process stream to prevent accumulation of impurities?

A. Recycle B. Bypass C. Make-up D. Purge

18. What is the change in concentration per unit time?

A. Rate constant B. Order C. Reaction rate D. Molecularity

19. What expresses the relationship between rate and concentrations?

A. Integrated rate law B. Arrhenius equation C. Equilibrium constant D. Rate law

20. What is the Arrhenius equation?

A. k = A e^(Ea/RT) B. k = A T e^(-Ea/RT) C. k = A e^(-Ea/T) D. k = A e^(-Ea/RT)

21. What decreases the reaction rate?

A. Catalyst B. Reactant C. Product D. Inhibitor

22. What order reaction has a rate independent of concentration?

A. First-order B. Zero-order C. Second-order D. Third-order

23. How does the half-life of a second-order reaction depend on initial concentration?

A. Inversely proportional B. Independent C. Proportional D. Constant

24. What is the integrated rate law for a second-order reaction?

A. ln[A] = -kt + ln[A]₀ B. [A] = -kt + [A]₀ C. ln[A] = kt + ln[A]₀ D. 1/[A] = kt + 1/[A]₀

25. What equation relates reaction rate to temperature using transition state theory?

A. Arrhenius B. van't Hoff C. Clausius-Clapeyron D. Eyring

26. What is the average time a fluid element spends in a reactor?

A. Space time B. Space velocity C. Hold-up time D. Residence time

27. What does fluid mechanics study?

A. Fluids at rest and in motion B. Thermal energy transfer C. Separation processes D. Chemical reactions

28. What is a substance that deforms continuously under applied shear stress?

A. Solid B. Gas C. Fluid D. Plasma

29. What is Newton's law of viscosity?

A. τ = μu B. τ = μ(du/dy) C. τ = μ/y D. τ = μu/y

30. What is the continuity equation for incompressible flow?

A. P₁V₁ = P₂V₂ B. V₁ = V₂ C. A₁V₁ = A₂V₂ D. A₁ = A₂

31. What is Bernoulli's equation?

A. P + V²/2 + gz = constant B. P/ρ + V²/2 = constant C. P/ρ + gz = constant D. P/ρ + V²/2 + gz = constant

32. What dimensionless parameter predicts flow regime?

A. Froude number B. Reynolds number C. Mach number D. Euler number

33. What is Archimedes' principle?

A. Archimedes B. Pascal C. Bernoulli D. Torricelli

34. What equation calculates head loss due to friction in pipes?

A. Darcy-Weisbach B. Hagen-Poiseuille C. Bernoulli D. Manning

35. What is the Mach number?

A. Reynolds B. Froude C. Mach D. Weber

36. What equation describes the motion of an inviscid fluid?

A. Euler B. Navier-Stokes C. Bernoulli D. Reynolds

37. What is capillary action caused by?

A. Cohesion B. Capillary action C. Viscosity D. Density

38. What is Fourier's Law?

A. q = h(Ts - T∞) B. q = εσT⁴ C. q = -kA dT/dx D. q = -k dT/dx

39. What is thermal conductivity?

A. Density B. Thermal conductivity C. Specific heat D. Thermal diffusivity

40. What is Newton's Law of Cooling?

A. Fourier B. Stefan-Boltzmann C. Newton D. Planck

41. What is a heat exchanger?

A. Boiler B. Heat exchanger C. Condenser D. Evaporator

42. What is thermal resistance?

A. Thermal resistance B. Thermal conductivity C. Heat flux D. Temperature gradient

43. What is the Nusselt number?

A. Reynolds B. Prandtl C. Nusselt D. Grashof

44. What number is used in natural convection?

A. Grashof B. Reynolds C. Prandtl D. Nusselt

45. What type of convection is driven by external means?

A. Natural B. Free C. Buoyant D. Forced

46. What number compares internal and external thermal resistances?

A. Fourier B. Nusselt C. Prandtl D. Biot

47. What is the Fourier number?

A. Biot B. Fourier C. Nusselt D. Prandtl

48. What dissipates heat by convection and radiation?

A. Heat sink B. Heat pipe C. Radiator D. Fin

49. What is a measure of how fast molecules diffuse?

A. Mass transfer coefficient B. Diffusion coefficient C. Diffusivity D. Permeability

50. What coefficient is used in convective mass transfer?

A. Diffusion coefficient B. Thermal conductivity C. Mass transfer coefficient D. Viscosity

51. What separation process is based on differences in volatility?

A. Absorption B. Extraction C. Distillation D. Adsorption

52. What is the transfer of a solute from one liquid to another?

A. Distillation B. Extraction C. Adsorption D. Absorption

53. What is the accumulation of a solute on a solid surface?

A. Adsorption B. Absorption C. Distillation D. Extraction

54. What theory considers the replacement of surface elements?

A. Film theory B. Penetration theory C. Boundary layer theory D. Surface renewal theory

55. What mass transfer coefficient accounts for resistances in both phases?

A. Individual B. Overall C. Film D. Boundary

56. What model combines resistances from different phases?

A. Film theory B. Penetration theory C. Resistance-in-series D. Surface renewal theory

57. What is used in the Chilton-Colburn analogy for mass transfer?

A. j-factor B. Stanton C. Prandtl D. Schmidt

58. What separation process is based on the formation of solid crystals?

A. Distillation B. Extraction C. Drying D. Crystallization

59. What is the ratio of permeabilities of different components?

A. Selectivity B. Permeability C. Diffusivity D. Solubility

60. What type of control system does not use feedback?

A. Closed-loop B. Feedforward C. Adaptive D. Open-loop

61. What is the characteristic equation?

A. Denominator zero B. Numerator zero C. Gain zero D. Input zero

62. What does a root locus plot show?

A. Bode B. Nyquist C. Root locus D. Nichols

63. What are gain margin and phase margin?

A. Steady-state B. Transient C. Error D. Stability margin

64. What is phase margin?

A. Gain margin B. Phase margin C. Bandwidth D. Peak

65. What determines overshoot and settling time in a second-order system?

A. Natural frequency B. Gain C. Damping ratio D. Time constant

66. What is an overdamped system?

A. Overdamped B. Underdamped C. Critically damped D. Undamped

67. What is the natural frequency?

A. Damping ratio B. Gain C. Natural frequency D. Time constant

68. What is the rise time of a system?

A. Settling time B. Rise time C. Peak time D. Delay time

69. What is peak overshoot?

A. Peak overshoot B. Settling time C. Rise time D. Delay time

70. What measures a physical quantity and converts it to a signal?

A. Actuator B. Controller C. Transducer D. Sensor

71. What converts a signal into physical action?

A. Sensor B. Actuator C. Controller D. Transducer

72. What is entropy?

A. Enthalpy B. Internal energy C. Entropy D. Gibbs free energy

73. What reaction releases heat?

A. Endothermic B. Exothermic C. Isothermal D. Adiabatic

74. What law states that enthalpy change is independent of the pathway?

A. First Law B. Second Law C. Hess's Law D. Third Law

75. What is the enthalpy change when one mole of a compound is formed from its elements?

A. Combustion B. Neutralization C. Solution D. Formation

76. What is the enthalpy change when one mole of a substance is burned?

A. Formation B. Combustion C. Neutralization D. Solution

77. What is the enthalpy change when an acid reacts with a base?

A. Neutralization B. Formation C. Combustion D. Solution

78. What is the energy required to break a bond?

A. Formation B. Combustion C. Neutralization D. Bond dissociation

79. What is the energy released when ions are hydrated?

A. Hydration B. Lattice enthalpy C. Bond dissociation D. Solvation

80. What equation relates ΔG to ΔH and ΔS?

A. Arrhenius B. van't Hoff C. Clausius-Clapeyron D. Gibbs-Helmholtz

81. What equation relates the equilibrium constant to temperature?

A. Arrhenius B. van't Hoff C. Clausius-Clapeyron D. Gibbs-Helmholtz

82. What equation relates vapor pressure to temperature?

A. Clausius-Clapeyron B. Arrhenius C. van't Hoff D. Gibbs-Helmholtz

83. What is the accumulation of a solute on a solid surface?

A. Adsorption B. Absorption C. Distillation D. Extraction

84. What method is used for minimum reflux ratio calculation?

A. Fenske B. Underwood C. McCabe-Thiele D. Ponchon-Savarit

85. What type of distillation is used for heat-sensitive materials?

A. Steam B. Vacuum C. Azeotropic D. Extractive

86. What type of distillation is used for high-boiling materials?

A. Steam B. Azeotropic C. Vacuum D. Extractive

87. What is the fraction of a component recovered in the product?

A. Selectivity B. Efficiency C. Recovery D. Purity

88. What membrane process uses pressure to overcome osmotic pressure?

A. Reverse osmosis B. Dialysis C. Electrodialysis D. Ultrafiltration

89. What is used in packed column design?

A. HTU B. NTU C. HETS D. HETP

90. What law describes heat transfer?

A. Fick's Law B. Fourier's Law C. Newton's Law D. Navier-Stokes

91. What law describes mass transfer?

A. Fick's Law B. Fourier's Law C. Newton's Law D. Navier-Stokes

92. What is the ratio of thermal diffusivity to mass diffusivity?

A. Lewis B. Prandtl C. Schmidt D. Sherwood

93. What is the ratio of convective to conductive heat transfer?

A. Sherwood B. Prandtl C. Schmidt D. Nusselt

94. What is the ratio of inertial to viscous forces?

A. Prandtl B. Reynolds C. Schmidt D. Nusselt

95. What number is used in natural convection?

A. Grashof B. Reynolds C. Prandtl D. Nusselt

96. What type of boundary layer has smooth, orderly flow?

A. Turbulent B. Laminar C. Transitional D. Compressible

97. What is the distance from the surface where velocity reaches 99% of free-stream velocity?

A. Displacement thickness B. Momentum thickness C. Boundary layer thickness D. Thermal thickness

98. What is the region where velocity changes from wall to free-stream?

A. Thermal B. Concentration C. Momentum D. Velocity

99. What is the analogy between heat and mass transfer based on?

A. Different B. Analogous C. Unrelated D. Contradictory

100. What is the ratio of turbulent momentum diffusivity to turbulent thermal diffusivity?

A. Turbulent Prandtl number B. Schmidt C. Lewis D. Sherwood

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