NTS GAT Subject (Chemical Engineering) FLP 2 Free Quiz

NTS GAT Subject (Chemical Engineering) – FLP 2

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NTS GAT Subject (Chemical Engineering) – FLP 2 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 ensures equipment can withstand operating conditions?

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

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

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

3. What measures the profitability of an investment?

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

4. What does safety in chemical plant design include?

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

5. What is a systematic review of safety practices?

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

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

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

7. What is a key goal in chemical plant design?

A. Waste minimization B. Safety C. Cost D. Efficiency

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

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

9. What include size, material, and operating conditions?

A. PFDs B. P&IDs C. Equipment specifications D. Layouts

10. What do chemical process principles involve?

A. Design and operation of chemical plants B. Fluid flow and pressure C. Thermal energy transfer D. Separation processes

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

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

12. What is the ratio of mass of a component to total mass?

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

13. What is the law of conservation of energy?

A. First law of thermodynamics B. Second law of thermodynamics C. Third law of thermodynamics D. Zeroth law of thermodynamics

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

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

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

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

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

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

17. What is a measure of how far a reaction has proceeded?

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

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

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

19. What are used to represent the sequence of operations in a chemical process?

A. P&IDs B. Block diagrams C. Process flow diagrams D. Piping diagrams

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

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

21. What is the minimum energy required for a reaction to occur?

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

22. What does a catalyst do to activation energy?

A. Lowers activation energy B. Increases activation energy C. Has no effect D. Changes rate constant

23. What decreases the reaction rate?

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

24. What theory states that reactions occur when molecules collide with sufficient energy?

A. Transition state B. Arrhenius C. Collision theory D. Eyring

25. What reactor has continuous inflow and outflow with perfect mixing?

A. CSTR B. Batch C. Plug flow D. Fluidized bed

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 is a substance that deforms continuously under applied shear stress?

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

28. What is Newton's law of viscosity?

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

29. What is the continuity equation for incompressible flow?

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

30. What is laminar flow?

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

31. What is turbulent flow?

A. Laminar flow B. Transitional flow C. Turbulent flow D. Steady flow

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

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

33. What is Archimedes' principle?

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

34. What is the Mach number?

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

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

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

36. What is capillary action caused by?

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

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

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

38. What is conduction?

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

39. What is Fourier's Law?

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

40. What is radiation?

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

41. What is a blackbody?

A. White body B. Gray body C. Blackbody D. Transparent body

42. What is emissivity?

A. Absorptivity B. Reflectivity C. Transmissivity D. Emissivity

43. What is LMTD?

A. Average temperature B. Maximum temperature C. LMTD D. Minimum temperature

44. What method is used for heat exchanger design?

A. LMTD B. Energy balance C. Thermal resistance D. Effectiveness-NTU

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

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

46. What number is used in natural convection?

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

47. What type of convection is driven by buoyancy?

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

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

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

49. What is thermal diffusivity?

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

50. What number compares internal and external thermal resistances?

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

51. What is used to dissipate heat from electronic components?

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

52. What is the mass transfer analog of the Nusselt number?

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

53. What is the ratio of momentum diffusivity to mass diffusivity?

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

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

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

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

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

56. What is the driving force for mass transfer?

A. Temperature B. Concentration gradient C. Pressure D. Velocity

57. What theory assumes that mass transfer occurs by unsteady-state diffusion?

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

58. What model combines resistances from different phases?

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

59. What analogy relates heat, mass, and momentum transfer?

A. Reynolds B. Chilton-Colburn C. Prandtl D. Nusselt

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

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

61. What separation process uses a semipermeable membrane?

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

62. What law describes the solubility of a gas in a liquid?

A. Raoult's Law B. Dalton's Law C. Henry's Law D. Graham's Law

63. What type of control system uses the output to adjust the input?

A. Open-loop B. Feedforward C. Feedback (closed-loop) D. Adaptive

64. What does PID stand for?

A. Phase B. Proportional, Integral, Derivative C. Position D. Power

65. Which controller eliminates steady-state error?

A. Proportional B. Derivative C. Integral D. None

66. What does the derivative controller do?

A. Proportional B. Integral C. None D. Derivative

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

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

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

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

69. What does a root locus plot show?

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

70. What are gain margin and phase margin?

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

71. What is phase margin?

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

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

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

73. What is an overdamped system?

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

74. What is the natural frequency?

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

75. What is the settling time of a system?

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

76. What is the rise time of a system?

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

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

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

78. What transform is used in control systems for analysis?

A. Fourier B. Z-transform C. Laplace D. Hilbert

79. What is the First Law of Thermodynamics?

A. ΔS = Q/T B. ΔH = ΔU + PΔV C. ΔU = Q - W D. ΔG = ΔH - TΔS

80. What does the Third Law of Thermodynamics state?

A. Entropy increases B. Entropy approaches zero C. Entropy constant D. Entropy infinite

81. What is the definition of enthalpy?

A. H = U + PV B. H = U - PV C. H = U/T D. H = G + TS

82. What reaction releases heat?

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

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

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

84. What happens to entropy when the number of moles of gas increases?

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

85. What is the change in Gibbs free energy when one mole of a compound is formed from its elements?

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

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

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

87. What type of distillation uses a solvent to break an azeotrope?

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

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

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

89. What separation process separates solids from liquids?

A. Distillation B. Leaching C. Adsorption D. Crystallization

90. What is used in packed column design?

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

91. What law describes mass transfer?

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

92. What are the analogies between heat, mass, and momentum transfer based on?

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

93. What is the ratio of momentum diffusivity to thermal diffusivity?

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

94. What is the mass transfer analog of the Nusselt number?

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

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

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

96. What analogy relates heat, mass, and momentum transfer?

A. Chilton-Colburn B. Reynolds C. Prandtl D. Nusselt

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

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

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

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

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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