At certain locations geothermal energy in undergound water is available and used as the energy source for a power plant. Consider a supply of saturated liquid water at 150°C. What is the maximum possible thermal efficiency of a cyclic heat engine using this source of energy with the ambient at 20°C? Would it be better to locate a source of saturated vapor at 150°C than use the saturated liquid at 150°C?  

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• Consider the following code fragment
  void foo(int x, int y)
  {
  x+=y;
  y+=x;
  }
  main()
  {
  int x=5.5;
  foo(x,x);
  }
  What is the final value of x in both call by value and call by reference, respectively?
  (A) 5 and 16
  (B) 5 and 12
  (C) 5 and 20
  (D) 12 and 20
  
  

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  Anonymous

  1 year, 4 months ago

• Ionisation energy in group 1A varies in the decreasing order as 

  (a) Li > Na > K > Cs 

  (b) Na > Li > K >Cs 

  (c) Li > Cs > K > Na 

  (d) K > Cs > Na > Li

  by 
  Anonymous

  1 year, 6 months ago

• A clustering index is defined on the fields which are of type
  (A) non-key and ordering

  (B) non-key and non-ordering
  (C) key and ordering
  (D) key and non-ordering
  
  

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  1 year, 4 months ago
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  1 year, 5 months ago

• What is the number of steps required to derive the string ((() ()) ())

  S → SSS → (S)S → ε

  (A) 10
  (B) 15
  (C) 12
  (D) 16
  
  

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  1 year, 6 months ago