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RACK AND PINION EXAMINATION QUESTION | ||||||||||
V. Ryan © 2003-2017 | ||||||||||
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The diagram below displays a platform that is used to lift boxes from
one floor to another in a warehouse. The platform is fixed to a rack
which operates through gears. As the gears turn the platform moves up or
down depending on the direction of rotation. Gear Z is the driver as it
is connected directly to a motor. |
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1. Name a suitable sensor that could
be used to detect the platform as it reaches the desired floor.
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4. When
the motor is turned on it rotates at 240 rev/min (rpm) (i) How many times will gear X turn in one minute? (ii) How far does the platform travel in one minute?
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ANSWER TO QUESTION 4: When the motor is turned on it rotates at 240 rpm. Therefore, Gear Z turns at 240 rpm.
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