What is the primary purpose of the ingenious crossing signal introduced in the video?
Warehouse workers at 'railroad crossing' of miniature railroad conveyor system inside Chicago Tribune's paper storage wa

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Science, Physics, Engineering
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6th - 7th Grade
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Hard
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To reduce noise pollution
To ensure the safety of workers
To improve the efficiency of train schedules
To enhance the aesthetic appeal of the area
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the ingenious crossing signal compare to those used by full-sized railroads?
It is more complex and expensive
It is used only in urban areas
It is similar in design and function
It is less reliable
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What features are included in the crossing signal to alert workers?
Ringing bells and flashing lights
Digital displays and alarms
Loudspeakers and sirens
Vibrating ground and neon signs
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a feature of the crossing signal?
Ringing bells
Digital countdown timer
Flashing lights
Warning signs
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of the bells in the crossing signal?
To play music
To alert workers of an approaching train
To synchronize with traffic lights
To indicate the time of day
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