AP PGECET 2023 Mechanical Engineering Question Paper with Answer Key

AP PGECET Questions

• 1.

  The absolute humidity of air at 101.325 kPa is measured to be 0.02 kg of water per kg of dry air. Then the partial pressure of water vapour in the air is:
  

  • 1.99 kPa
    
  • 2.55 kPa
    
  • 3.16 kPa
    
  • 3.87 kPa
    
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• 2.

  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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• 3.

  The change in enthalpy of a system is related to the heat absorbed at a:
  

  • Constant volume
    
  • Constant temperature
    
  • Constant mole fraction
    
  • Constant pressure
    
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• 4.

  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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• 5.

  Why is the equilibrium constant (K) temperature-dependent?
  

  • Because $\Delta G^\circ$ depends on T
    
  • Because pressure affects K
    
  • Because entropy is temperature-independent
    
  • Because fugacity coefficients change with T
    
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• 6.

  ________ function is performed by data input/capture subsystem of GIS.

  • Retrieval of data elements
    
  • Storage of data elements
    
  • Acquiring data
    
  • Transformation of data
    
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