Traction Flashcards
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0
Q
What does DMU stand for?
A
Diesel Multiple Unit
1
Q
What does EMU stand for?
A
Electric Multiple Unit
2
Q
What are MCB’s?
A
Miniature Circuit Breakers
3
Q
What are IC’s and what do they control?
A
Isolation Cocks - They control the flow of compressed air to various equipment
4
Q
What does the term ‘cut in’ mean?
A
To start the train
5
Q
All traction units use what for initial power?
A
Batteries
6
Q
State the letters and their descriptives used to describe a unit
A
D = Driving Cab M = Motors P = Powered Axles T = Trailing Axles S = Standard Seating C = Composite Seating (1st & Standard) O = Open Carriage
7
Q
What is the voltage of EMU batteries?
A
110v
8
Q
What does a transformer do?
A
It steps down the electrical current to the required voltage
9
Q
What does a governor do on a compressor?
A
It monitors and controls when the compressor needs to be on or off
