Except for a few turbine driven locomotives, they won't. Most locomotives use diesel engines to drive a generator, which feeds power to the traction motors.
It is used to provide traction of the steel wheel on the steel rail. Especially when the track is wet or the train is climbing up a hill.
H. I. Andrews has written: 'The principles of railway traction' -- subject(s): Dynamics, Locomotives, Railroads, Trains
The British Rail Class 60 is a class of Co-Co heavy freight diesel-electric locomotives built by Brush Traction
Vidisha75. Further, it is proposed to establish a plant for manufacture of traction alternators for high horse power diesel locomotives at Vidisha in Madhya Pradesh.
Locomotives have sanders - tubes that drop sand on the rails ahead of the locomotive's wheels to aid traction when going up hills. The most modern locomotives also use anti-wheel-slip technology to mimimize wheel slippage; this is computer-controlled.
The engineer can't see if the tracks are washed out. But, even if it is very shallow and he can see the tracks, the steel wheels will have little traction on the steel track when they are wet. Also, the electric traction motors on diesel and electric locomotives would short out and destory themselves if they were flooded with water, making the train powerless to move. Steam locomotives could go into flooded water up to the bottom of their firebox, but why take the chance with such pricey equipment.
locomotives???
You keep locomotives in a shed
Las Vegas Locomotives was created in 2009.
James Harry Russell has written: 'Painted engines' -- subject(s): Traction-engines 'A pictorial record of Great Western engines' -- subject(s): Locomotives, Great Western Railway (Great Britain)
The first locomotives to haul pasengers could go about 20 mph.