InspectionQuestion 42 of 60
Inspecting the coupling system on a tank trailer is important because:
a.It changes the color of the placards
b.It sets the cargo temperature
c.It has nothing to do with safety
d.A failed coupling could allow a heavy loaded tank to separate from the tractor
Explanation
The coupling system, including the fifth wheel and kingpin, must be secure and undamaged. With the heavy weight of a loaded tank, a coupling failure could let the trailer break away with catastrophic results. Carefully checking the coupling is essential before pulling a tank trailer.
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Related questions on this topic
- During inspection, why should you check that all tank openings are closed and secured?
- Because a loaded tank places heavy stress on the suspension, what should you inspect?
- What is a good reason to walk completely around the tank vehicle during inspection?
- When should the pre-trip inspection of a tank vehicle be completed?
- Why is checking tire inflation especially important on a loaded tanker?
- What should you verify about the gaskets and seals around tank openings?
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