Where would you find the shut-off valves?
a) In the front of a trailer
b) In the front of the tractor
c) In the rear of the tractor
d) In the rear of a trailer
Answer: d) In the rear of a trailer
a) In the front of a trailer
b) In the front of the tractor
c) In the rear of the tractor
d) In the rear of a trailer
Answer: d) In the rear of a trailer
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