AP PGECET 2026 Chemical Engineering Question Paper: Download Answer Key with Solutions

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• 1.

  The ratio of the ages of A and B is 5:3. After 6 years, their ages will be in the ratio 6:4. What is the current age of A?
  

  • 15 years
    
  • 18 years
    
  • 30 years 
     

  • 25 years
    
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• 2.

  If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase is known, then the latent heat of fusion can be calculated by the:
  

  • Nernst Heat Theorem
    
  • Maxwell's equation
    
  • Van Laar equation
    
  • Clapeyron–Clausius equation
    
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• 3.

  Which statement about entropy is incorrect?

  • Entropy is zero at 0 K (Third Law)
    
  • Entropy decreases in spontaneous adiabatic processes
    
  • Entropy production is irreversible
    
  • Entropy measures energy dispersal
    
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• 4.

  A balanced delta connected load of \( (8 + j6) \Omega \) per phase is connected to a 400 V, 50 Hz, three-phase supply lines. If the input power factor is to be improved to 0.9 by connecting a bank of star-connected capacitors, the required kVAR of the bank is _______.

  • 42.7
    
  • 10.2
    
  • 28.8
    
  • 38.4
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• 5.

  The entropy of single crystalline Silicon at absolute zero will be:
  

  • 2
    
  • 1
    
  • 0
    
  • 10
    
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• 6.

  A number is selected randomly from each of the following two sets:
  {1, 2, 3, 4, 5, 6, 7, 8}, {2, 3, 4, 5, 6, 7, 8, 9}
  What is the probability that the sum of the numbers is 9?

  • \(\frac{1}{8}\)
    
  • \(\frac{1}{16}\)
    
  • \(\frac{3}{32}\)
    
  • \(\frac{7}{64}\)
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