HAT Subject (Chemical Engineering) FLP 1 Free Quiz

HAT Subject (Chemical Engineering) – FLP 1

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HAT Subject (Chemical Engineering) – FLP 1 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 shows detailed piping and instrumentation?

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

2. What ensures equipment can withstand operating conditions?

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

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

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

4. What includes capital and operating costs?

A. Process design B. Mechanical design C. Layout D. Economic evaluation

5. What is the discount rate that makes NPV zero?

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

6. What does safety in chemical plant design include?

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

7. What study is used to identify hazards in a plant?

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

8. What analysis is used to identify potential failures?

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

9. What is a systematic review of safety practices?

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

10. What aims to make processes more efficient and compact?

A. Safety B. Environmental C. Process intensification D. Cost

11. What is selected based on corrosion resistance and cost?

A. Process design B. Mechanical design C. Layout D. Material of construction

12. What is a series of operations that converts raw materials into products?

A. Unit operation B. Unit process C. Chemical process D. Chemical reaction

13. What is the accounting of mass entering and leaving a process?

A. Energy balance B. Mass balance C. Momentum balance D. Entropy balance

14. What is the accounting of energy entering and leaving a process?

A. Energy balance B. Mass balance C. Momentum balance D. Entropy balance

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

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

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

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

17. What is the calculation of reactants and products in chemical reactions?

A. Mass balance B. Energy balance C. Stoichiometry D. Reaction kinetics

18. What is the reactant that is completely consumed in a reaction?

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

19. What is the amount of product obtained relative to the theoretical maximum?

A. Conversion B. Selectivity C. Yield D. Stoichiometry

20. What is the ratio of desired product to undesired product?

A. Conversion B. Yield C. Stoichiometry D. Selectivity

21. What diverts a portion of the feed around a process unit?

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

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

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

23. What expresses the relationship between rate and concentrations?

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

24. What is a proportionality constant in the rate law?

A. Rate B. Order C. Rate constant D. Activation energy

25. What increases the reaction rate by providing an alternative pathway?

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

26. What decreases the reaction rate?

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

27. What is the time required for concentration to decrease by half?

A. Rate constant B. Activation energy C. Order D. Half-life

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

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

29. What is the integrated rate law for a first-order reaction?

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

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

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

31. What is the time required to process one reactor volume of feed?

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

32. What is the fraction of reactant converted to product?

A. Yield B. Selectivity C. Conversion D. Extent of reaction

33. What is the continuity equation for incompressible flow?

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

34. What is the boundary layer in fluid flow?

A. Core flow B. Wake C. Potential flow D. Boundary layer

35. What law states that pressure in a confined fluid is transmitted equally?

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

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

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

37. When is flow considered compressible?

A. Incompressible B. Subsonic C. Supersonic D. Compressible

38. In which flow regime do shock waves occur?

A. Subsonic B. Supersonic C. Transonic D. Hypersonic

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

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

40. What equation describes the motion of a viscous fluid?

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

41. What is capillary action caused by?

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

42. The continuity equation is based on which conservation principle?

A. Mass conservation B. Energy conservation C. Momentum conservation D. Angular momentum

43. What is the Stefan-Boltzmann Law?

A. q = εσT⁴ B. q = σT² C. q = σT D. q = σ/T⁴

44. Which type of heat transfer does not require a medium?

A. Conduction B. Radiation C. Convection D. Advection

45. What is thermal resistance?

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

46. What is the Nusselt number?

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

47. What type of convection is driven by buoyancy?

A. Forced convection B. Conduction C. Natural convection D. Radiation

48. What is used to increase heat transfer by increasing surface area?

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

49. What uses phase change to transfer heat efficiently?

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

50. What number compares internal and external thermal resistances?

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

51. What is the transfer of mass by fluid motion?

A. Convection mass transfer B. Diffusion C. Osmosis D. Advection

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

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

53. What is the transfer of a solute from a gas to a liquid?

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

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

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

55. What relates the concentrations of solute in different phases?

A. Mass transfer coefficient B. Diffusion coefficient C. Equilibrium relationship D. Henry's constant

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

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

57. What mass transfer coefficient accounts for resistance in one phase?

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

58. What model combines resistances from different phases?

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

59. What process involves mass transfer of moisture from a solid to a gas?

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

60. What separation process uses a semipermeable membrane?

A. Distillation B. Membrane separation C. Extraction D. Adsorption

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

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

62. What is process control?

A. Regulation of process variables to maintain desired conditions B. Fluid flow and pressure C. Thermal energy transfer D. Separation processes

63. What is the transfer function?

A. Time ratio B. Laplace ratio C. Frequency ratio D. Gain

64. What is the characteristic equation?

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

65. What consists of magnitude and phase plots versus frequency?

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

66. What is a polar plot of the frequency response?

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

67. What is phase margin?

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

68. What is gain margin?

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

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

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

70. What is an overdamped system?

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

71. What is the natural frequency?

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

72. What is the settling time of a system?

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

73. What representation uses state variables?

A. Transfer function B. Frequency response C. State-space D. Impulse response

74. What does a zero ΔG indicate?

A. Spontaneous B. Non-spontaneous C. Equilibrium D. Undefined

75. What reaction releases heat?

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

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

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

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

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

78. What cycle is used to calculate lattice enthalpy?

A. Haber process B. Contact process C. Born-Haber cycle D. Solvay process

79. What happens to entropy when a gas condenses to a liquid?

A. Decreases B. Increases C. Stays the same D. Fluctuates

80. What is the transfer of a solute from a gas to a liquid?

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

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

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

82. What is the removal of moisture from a solid?

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

83. What method uses enthalpy-concentration diagrams?

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

84. What are mixtures with constant boiling point and composition?

A. Ideal B. Non-ideal C. Azeotropes D. Eutectic

85. What is the ratio of desired to undesired component?

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

86. What is the fraction of desired component in the product?

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

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

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

88. What membrane process uses concentration difference?

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

89. What membrane process separates macromolecules from solvents?

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

90. What is the ratio of concentrations in two phases?

A. Selectivity B. Distribution coefficient C. Recovery D. Purity

91. What is a concept used in distillation design?

A. Real plate B. Equilibrium stage C. Theoretical plate D. Ideal plate

92. What does transport phenomena study?

A. Momentum, heat, and mass transfer B. Fluid flow only C. Thermal energy only D. Separation only

93. What is the transport of momentum in fluids?

A. Heat transfer B. Mass transfer C. Momentum transfer D. Energy transfer

94. What law describes mass transfer?

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

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

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

96. What is the product of Grashof and Prandtl numbers?

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

97. What describes flow near a surface?

A. Potential flow B. Inviscid flow C. Ideal flow D. Boundary layer theory

98. What type of boundary layer has chaotic, irregular flow?

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

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

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

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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