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Question 1 of 48
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In Step 1 of the coupling procedure, what position must the fifth wheel jaws be in before you back the tractor under the trailer?
A
Closed and locked, so the kingpin cannot slip out
B
Either position works, because the kingpin forces the jaws open
C
Half closed, so the kingpin can be centered by hand
D
Open, with the safety unlocking handle in the automatic-lock position