Practice question

What is the safest approach to emergency roof hatches that can be locked partly open?

Use the partly open position for fresh air when allowed, but do not make it a regular practice and remember the added clearance
Leave them fully open on every trip to improve ventilation
Lock them open and ignore vehicle clearance because hatches are inside the roofline
Disable them so passengers cannot use them

Answer: A — Use the partly open position for fresh air when allowed, but do not make it a regular practice and remember the added clearance

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