Train crew job study guide question..?

Question

Alright, on this test I choose to take, I have a study guide. I can't find a answer on one of the questions, maybe yuo can help.

The question pretty much says; in my own words: If you wanted to remover the last few cars of a manifest (or any kind of combo) what would you have to do, so when you disconnect the brake lines, it will not lose the pressure throughout the rest of the whole train?

Like what valves would I have to turn or what ever is needed.

Thanks!

Answer 1

Close the "Main Res" (yellow one)and "Brake Pipe"(red one) valves/c***s on the end of each vehicle before splitting them, then there air systems are isolated from the wagons/trucks that you are removing from the train.

Always make sure the wagons/trucks you are leaving behind have there handbrakes applied or are scotched.

Answer 2

Hey Candy. I'm pretty sure you're in the U.S. In that case, the anglecock-valve must be closed (perpendicular to the pipe) on the rear of the last car that will be the end of the train. Apply sufficient hand brakes to the section to be left behind. On the Canadian Pacific, that's 10 percent plus two. Then lift the uncoupler handle (pin lifter) where the split is to be made. Instruct the engineer to pull ahead. That's about it. As the two train sections move apart, the air hoses will automatically come apart. And you must stand back and look away as the blast of air kicks out small rocks and dirt.

Answer 3

If you want to keep the train line charged in both cuts of cars you need to turn both angle c***s.  The one on the cars that are still attached to the engines, and the one that is on the cut of cars that you are cutting away from. This is called bottling the air. On the NS( Alias, The n**i Southern) where I work this is not allowed because they think that the cut of cars that you cut away from will roll away. Maybe if you don't tie your hand brakes.

Answer 4

Hi,  1st  I need to ask a few questions. What country are you testing in/ for. 2nd What  type of job your you seeking. And last what kind of Railroad are you applying too.   good luck!

Answer 5

turn the anglecock on last car you are hanging onto.it is at the end of the air hose between the car. depending where you are leaving cars you may need to a certain amount of hand brakes as per timetable instructions.

Answer 6

Ah yes, the lowly anglecock.

But, before turning it, the brake pipe must be reduced to full service and equalized before doing so.  To do so while the air is still flowing through the brake pipe can cause an undesired release of the brakes.  The engineer will inform by radio or whistle signal when the brake pipe pressure has equalized.

Air has many of the same properties of water, except air can be compressed.  But, when flowing through the brake pipe, if one turns the anglecock, the air runs into it and sloshes backwards, like a small wave made in your bath tub.  It gets to the far end, piles up and washes backwards.

It only takes a 2psi increase in brake pipe pressure to release the brakes, or 1 1/2 psi to initiate a release where brake equipment on the cars has the "accelerated service release" feature.  This feature allows a portion of air from the brake cylinder to flow back into the brake pipe when released with a portion of the air exhausted to atmosphere.  Standard equipment vents all air from the brake cylinder to atmosphere during a release.

Answer 7

You must be in direct radio contact with the engineer . After he has applied brakes then chock (wedge) or as they call it put a skate on the first set of wheels (truck) . Go in between the cars to be cut . There are two hoses coupled together there. Follow each hose under each car. Close off all valves (4 in all) . You have just isolated the cars to be cut from the remaining consist . There is a valve on each car to set brakes go to the first car to be cut & set the brakes . Call to the engineer to pull away , the clad hands on the hoses will pull apart & you have successfully separated a consist.