combustion | Simple , elegant testing for Rails Engines | Application Framework library

I have two tables for car information’s to identify which type of engine they have. Therefore I need a second table where all the special equipment of the car is listed. Table 1 distinguishes between Battery and No-Battery. With the key of the special equipment out of table2 it can be identified if the "No-Battery" Cars are Hybrids or Combustion Engine Cars. If they have the special Equipment "ABC" Key, they are Hybrid Cars. If not they are Combustion Cars.

Table 1:

I'm coding a program that will print output on what is happening with parts of an internal combustion engine. I have an abstract class called CarSystemParts that all car part classes inherit from.

I have a Dictionary> that shows which classes should be affected or physically pushed by other parts. It's defined like this:

so I've coded a questionnaire and I'm running into an issue. When a user clicks submit the questionnaire the results are displayed near the submit button I was hoping for them to be redirected to a new page (where results are displayed) by using the CSS hidden property, but I don't understand how I can do that and also for some reason after submitting there is an 'undefined' option displaying under the choices, how can I get rid of that? I'd really appreciate it if someone can help me solve my issues, thank you!

I linked the IDE for my project if that's easier: https://repl.it/@AS11RA/Forest-Firefighters-Website#start%20questionnaire.js

Heres the startquestionnaire.Js file:

so I've coded a questionnaire/survey for my website but for some reason when a user clicks start questionnaire the questions show but the choices aren't displayed. I'm really confused as to why this isn't working I would really appreciate if anyone can help me solve my problem, thank you!

Here's a link to my IDE as I figured it would be easier to go through it to identify any mistakes I'm making: https://repl.it/@AS11RA/Forest-Firefighters-Website#index.html

Here's the start questionnaire.js file:

I'm trying to build a really simple survey on Javascript but I keep getting this error "TypeError: startSurvey is not a function at HTMLButtonElement.onclick (/:2:54)" I would really appreciate if anybody can help me solve this error or provide any further feedback and suggestions.

Here's my HTML code:

I'm working with an externally developed XSD that I need to conform to, where a field Engine can be one of two types: Electric or Combustion. Both are derived from super-class Engine.

There are multiple ways to have the XmlSerializer in C# handle this, but all are seemingly associated with the same side-effect: default serialization naming conventions are tossed out the window when using a custom serializer-apporach. I want to mimic the default behaviour for the remaining fields of the class Vehicle.

Consider the following:

I have a column which has entry like : 'TURBINE, STEAM ; MAKE: ABB ; MODEL: CF-4GSS ; RATING: OUT PUT 1175 BHP ; SPEED: 2975 MIN -1'

There is some modifications I need to do after reading this into python. String MUST be of the form : ITEM : TURBINE ; COMBUSTION : STEAM ; MAKE : XYZ ; MODEL : XYZ and so on.

How can I format it so that the column is of the specified format ? (Also since im reading this with pandas i think this column will be a series object)

I have the following test_string from which I need to obtain the actual URL.

Test string (partly shown):

I'm trying to implemenet an assignment problem. I have the following problem when trying to multiply two variables in linear programming (using glpk gusek) in my goal function: