Monthly Quizzes 

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Engineering Software is pleased to announce the introduction of free short energy conversion quizzes. 

 

Here is a free short energy conversion quiz for the month of June -- when you are ready, take the free short energy conversion quiz for the month of June:

What is the kappa value for nitrogen?
     a) The nitrogen kappa value is:  1.66 [/].
     b) The nitrogen kappa value is:  1.67 [/].
     c) The nitrogen kappa value is:  1.32 [/].
     d) The nitrogen kappa value is:  1.4 [/].
What is the molecular weight value for nitrogen?
     a) The nitrogen molecular weight value is:  32 [kg/kmol].
     b) The nitrogen molecular weight value is:  28 [kg/kmol].
     c) The nitrogen molecular weight value is:  2 [kg/kmol].
     d) The nitrogen molecular weight value is:  29 [kg/kmol].
What is the specific heat value for nitrogen in [J/kg*K]?
     a) The nitrogen specific heat value is:  2,092 [J/kg*K].
     b) The nitrogen specific heat value is:  2,223 [J/kg*K].  
     c) The nitrogen specific heat value is:  1,004 [J/kg*K].  
     d) The nitrogen specific heat value is:  1,038 [J/kg*K].
What is the ideal Diesel Cycle efficiency dependent on?
     a) The ideal Diesel Cycle efficiency is dependent on the compression volumetric ratio.
     b) The ideal Diesel Cycle efficiency is dependent on the compression volumetric ratio and cut off ratio.
     c) The ideal Diesel Cycle efficiency is dependent on the compression volumetric ratio, cut off ratio and the working fluid physical
         properties.
     d) The ideal Diesel Cycle efficiency is dependent on the working fluid physical properties.
For the ideal Diesel Cycle, how does an increase in the working fluid mass flow rate impact the power output?
     a) As the working fluid mass flow rate increases, the Diesel Cycle power output decreases accordingly.
     b) As the working fluid mass flow rate increases, first the Diesel Cycle power output increases accordingly and then it decreases.
     c) As the working fluid mass flow rate increases, the Diesel Cycle power output increases accordingly.
     d) The working fluid mass flow rate change has no impact on the power output.

 

Please note that early next month, July, Engineering Software will post the correct answers to the above free short energy conversion quiz questions for the month of June! 

 

For the month of May, free short energy conversion quiz correct answers are as follows:

What is the molecular weight value for sulfur?
     The sulfur molecular weight value is:  32 [kg/kmol].
What is the sulfur fuel higher heating value?
     The sulfur higher heating value is approximately 4,000 [Btu/lbm].
When sulfur reacts with standard air, what is the stoichiometric oxidant to fuel ratio value?
     Sulfur stoichiometric oxidant to fuel ratio value is:  4.292 [/].
When sulfur reacts with standard air, what is the combustion products flame temperature?
     The combustion products flame temperature is:  1,972 [K].
What is the sulfur enthaply at standard reference conditions where the temperature is 298 [K] and the pressure is 1 [atm]?
     The sulfur enthalpy is:  0 [kJ/kg*K].