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The 3D graphic on the right shows an LCD TV which is attached to a wall with a movable support bracket - Leaving Cert DCG - Question C-5 - 2009
Question C-5
The 3D graphic on the right shows an LCD TV which is attached to a wall with a movable support bracket. Details of the support bracket are given in Fig. C-5 with th... show full transcript
Worked Solution & Example Answer:The 3D graphic on the right shows an LCD TV which is attached to a wall with a movable support bracket - Leaving Cert DCG - Question C-5 - 2009
Step 1
Draw the sectional elevation A-A of the assembled parts when the bracket is in the fully extended position.
Answer
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Begin by sketching the framework of the support bracket based on the dimensions provided in Fig. C-5.
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Include the wall anchor, the TV plate, link arm, and other components as shown in the 3D graphic.
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Ensure to emphasize the correct scaling and proportions between components, using a pencil for initial outlines and adjusting as necessary.
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Use hatch patterns to represent different materials (like the TV mount) and label each part clearly.
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Finally, review the elevation to ensure that it accurately reflects the bracket in a fully extended position, indicating attachments and secured connections.
Step 2
On a separate drawing, determine the distance between the wall (surface C) and the back of the TV (surface D) when the bracket is fully closed and the TV is parallel to the wall.
Answer
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Start the drawing by deciding on a standard scale for your view.
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From Fig. C-5, determine the dimensions of surfaces C and D when the bracket is in the closed position:
- Surface C is the wall, and its position is fixed at 0.
- Surface D is the back of the TV: measure the distance from the wall to the back of the TV.
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The full closed distance when the TV is parallel to the wall is indicated to be 71 mm, as derived from the positioning dimensions.
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Clearly label the final distance on the separate drawing, ensuring it's compatible with necessary scaling.