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SYSTEMS PREPARATION QUESTIONS 2007 - 11 |
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V. Ryan © 2007 - 2017 |
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1. An orthographic drawing of a coupling rod for a toy
steam engine is shown below. There is a potential weakness to the design.
Alter the design to shown a method of strengthening the coupling. Include
a label. |
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ANSWER |
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2. Coupling rods often wear out quickly if bearings are
not used to the smooth movement of moving parts. Complete the drawing of
the roller bearing shown below. |
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ANSWER |
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3. Underline two of the following materials that are
regarding as bearing materials (materials that do not produce much
friction when their surfaces ‘rub’ against other materials. |
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STEEL - BRASS
- NYLON - PINE - IRON - CONCRETE |
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ANSWER |
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STEEL - BRASS
- NYLON - PINE - IRON -
CONCRETE |
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