IA DMV Practice Test
29.
________ are required to stop for railroad crossings.
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Cattle trucks
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School buses
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Dairy trucks
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30.
A broken yellow line separating lanes of traffic means:
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No passing zone.
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Warning: construction zone.
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Passing is permitted when safe.
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31.
Vehicles may travel in lanes beneath the green arrow signal, but drivers must:
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Also obey all other signs and signals.
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Never change lane.
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Prepare to leave the lane safely.
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32.
When they see a yellow X signal, drivers should:
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Come to a complete stop at the marked stop line.
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Prepare to leave the lane safely.
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Turn off the ignition.
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33.
Which of the following is true? Vehicles approaching a highway-railroad grade crossing must:
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Stop when the crossing gate is lowered.
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Always stop.
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Stop only when an approaching train is clearly visible.
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34.
An approaching train is near enough to be a danger. You as a driver must:
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Not cross the tracks until the train has completely passed.
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Cross the tracks before the train arrives.
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Sound your horn.
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35.
If a traffic light is broken or not functioning you should:
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Treat the intersection as a four-way stop.
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Stop and wait for a licensed traffic technician to arrive.
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Proceed as you normally would.
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