Wheel slipping and skidding on slippery rails 

Because its an old loco :)

Not necessarily. Škoda locomotives used spoked wheels until the 1990s. I think It's just because the wheel is lighter that way.

No, but in case of excessive wheelslip, they just trip the main breaker.

I think all the electrical motor driven locomotives have traction control either from older mechanical "accelerometers" or modern electronics. But the feedback and reaction is much more effective with modern electronic systems though.

I use it. You can hear the hissing sound of the nozzle and crushed sand particles on the rail behind the wheel. Just this particular sand pipe has very poor flow rate.

@@TC-Rail How much is it normally?

@@TC-Rail I am trying to contact you to use your images in a project but can't pick or find your email or any other contact details. Can you share with me? Thank you.