How Does a Slip on Gearbox Work?

[GGoOrz]

Hi guys,

this is a question from one of the subject I'm studying, I find some of them are pretty hard...
(tried to answer them but still seem wrong, except Q1)
Here is the question!

Thanks for the help if you have the time to help me with my questions^^
cheers!

 

[Travis_King]

You should provide your answers so that folks can help you figure it out, rather than tell you.

 

[GGoOrz]

dw about it anymore...i figured them out! tks anyway