Trailers the Forgotten Ones - Quiz 3
Which valve was part of the first "121" law multi-valve/multi-tank system?
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Task valve
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RE valve
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Serv valve
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RT4 valve
The task valve system required a separate protected emergency tank
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True
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False
In the RT/RG system the RT valve is for service brakes and the RG valves are for parking
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True
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False
The two-way check valve incorporated in the RT4 valve allowed for the elimination of what?
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A separated protected tank
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Pressure protection valves
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Protected supply lines
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None of the above
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?
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One-way check valve
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Two-way check valve
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Pressure protection valve
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Service brake relay valve
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None of the above
Where does the RT/RG system gets its supply of air to release the spring brakes?
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The trailer control line
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The trailer tank/trailer supply line
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The hand control valve
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The regulating valve