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Trailers the Forgotten Ones - Quiz 3

1.

Which valve was part of the first "121" law multi-valve/multi-tank system?

  1. Task valve

  2. RE valve

  3. Serv valve

  4. RT4 valve

2.

The task valve system required a separate protected emergency tank

  1. True

  2. False

3.

In the RT/RG system the RT valve is for service brakes and the RG valves are for parking

  1. True

  2. False

4.

The two-way check valve incorporated in the RT4 valve allowed for the elimination of what?

  1. A separated protected tank

  2. Pressure protection valves

  3. Protected supply lines

  4. None of the above

5.

In the RT/RG 2 tank - 3 valve system which component prevented automatic dynamiting of the parking brakes in case of a single tank failure?

  1. One-way check valve

  2. Two-way check valve

  3. Pressure protection valve

  4. Service brake relay valve

  5. None of the above

6.

Where does the RT/RG system gets its supply of air to release the spring brakes?

  1. The trailer control line

  2. The trailer tank/trailer supply line

  3. The hand control valve

  4. The regulating valve

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