ROBBDS test

Question 1

What are the first things you need to check?

Answer 1

Trip
Switches - includes door controls
Gauges
Cocks

Question 2

What circuit breaker is most likely to cause the train to fail?

Answer 2

Control circuit breaker

Question 3

After the initial checks, what do you need to check next?

Answer 3

Check that there is 110 vDC available

Question 4

How do you check to see if 110 v DC is available?

Answer 4

Supply light
LP flag is lowered and EP is operational
The bell works

Question 5

What does ROBBDS stand for?

Answer 5

Reverser - need C/E try powering in reverse
Traction overload reset - press it try for power
Brake pipe reduction - BP below 325 CG opens restore above 430 CG closes try for power
Control gov bypass - turn red ec run on secondary
Door loop bypass
Second controller - C/E try powering from another cab

Question 6

CG opens below?

Answer 6

310-340

Question 7

CG closes above?

Answer 7

400-430