Engineer Training

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Front #137

ABTH 103.3A

When applying automatic brakes using split reductions for a planned slowdown or stop, make an initial reduction of six to eight psi followed by additional reductions in __ psi increments, spaced seconds apart.

4-6; 3
4-6; 20
2-3; 30
2-3; 20

Back #137

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ABTH 103.3A

Answer: 2-3; 30

Feedback:
For planned slowdowns and stops, after the initial reduction of six to eight psi, make additional reductions in two to three psi increments. These reductions should be spaced 30 seconds apart to give the system time to stabilize, which results in better train handling. Make a final brake pipe reduction when operating conditions permit as train is nearing a stop to prevent a run-out of slack. This results in brake pipe pressure exhausting as the train comes to a stop.

ABTH 103.3A

When applying automatic brakes using split reductions for a planned slowdown or stop, make an initial reduction of six to eight psi followed by additional reductions in ______ psi increments, spaced ____ seconds apart.

ABTH 103.3A

When applying automatic brakes using split reductions for a planned slowdown or stop, make an initial reduction of six to eight psi followed by additional reductions in __ psi increments, spaced seconds apart.