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SYSTEMS PREPARATION QUESTIONS 2007 - 11
 
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.
 
 
 
 
ANSWER
 
 
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.
 
 
ANSWER
 
 
 
 
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.
 
STEEL  -  BRASS  -  NYLON  -  PINE  -  IRON -  CONCRETE
 
ANSWER
 
STEEL  -  BRASS  -  NYLON  -  PINE  -  IRON -  CONCRETE
 
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