
Step 1: Deconstructing the Design Brief:
The core requirements for the product are:
Primary Function: Drying clothes using a fan.
Integration: Must work with a fan (specifically, a ceiling fan is a common context).
Dual Use: The fan must function normally when the drying feature is not in use.
Storage: The product must be foldable and compact.
Step 2: Core Design Principles & Strategy:
The design strategy will focus on creating a product that is safe, efficient, and aesthetically unobtrusive. Key principles are:
Safety First: The design must not unbalance the fan, pose an electrical hazard, or have a low weight capacity.
Space Efficiency: The product should not consume floor space and should be discreet when not in use.
Material Selection: Materials must be lightweight, strong, and rust-proof (e.g., aluminum, stainless steel, durable polymers).
Step 3: Detailed Concept Descriptions:
1. Present three ideas of design alternatives through rough sketches. (Textual Description)
\(\textit{As an AI, I cannot provide visual sketches. The following are detailed descriptions of what the sketches would show.} \)
Concept A - The "Aero-Chandelier": A sketch showing a collapsible, multi-armed rack attached to the central downrod of a ceiling fan. One sketch would show it in its folded state, with the arms pointing up and flush against the fan motor, resembling a sleek chandelier. A second sketch would show it deployed, with the arms locked horizontally, extending outwards like spokes, with small clothes hanging from clips.
Concept B - The "Pedestal Tower": A sketch of a pedestal fan with a lightweight, cylindrical fabric tower attached to its grille. The sketch would show clothes laid on internal mesh layers. An "exploded view" would detail how the fabric tower collapses into a small, flat disc for storage.
Concept C - The "Convertible Box Fan": A sketch of a modern box fan with a detachable, X-frame rack mounted on top. An inset sketch would show the rack folded completely flat. The main sketch would highlight a simple toggle switch on the fan labeled "Air Circulator" and "Warm Air Dryer".
2. List ten critical factors (key words only) you will consider for designing.
Safety
Stability
Efficiency
Material
Compactness
Usability
Aesthetics
Versatility
Maintenance
Capacity
3. Select one of your ideas and develop it into a final product. Make a neat sketch of the same. Indicate all the parts, material and features on this sketch. (Textual Description of Final Sketch)
\(\textit{Developing Concept A: The "Aero-Chandelier"} \)
Overall View Sketch: A perspective sketch of a modern ceiling fan. Attached to the rod just above the motor is the "Aero-Chandelier" unit. The sketch shows its six arms deployed horizontally. Each arm has clothes hanging from it. Callout arrows point to different parts with labels.
Parts and Materials Labels:
Mounting Collar: Labeled as "Injection-Molded ABS Polymer with Rubberized Grip". Shown as a two-part collar that screws together around the fan's downrod.
Hinge Mechanism: Labeled as "Spring-Loaded Steel Locking Hinge". A detailed inset sketch shows a push-button on the hinge to release the lock and allow the arm to fold.
Telescopic Arms: Labeled as "Anodized Aluminum Arms". An arrow indicates that the arms can slide to extend their length.
Garment Clips: Labeled as "UV-Stabilized Polypropylene Clips". Shown as small, integrated clips that can slide along the underside of the arms.
Features Indicated:
An arrow labeled "Fold-Up Action" shows one arm in a semi-folded position, moving upwards.
A dimension line labeled "Adjustable Length (40cm to 60cm)" is shown on one of the telescopic arms.
A note says: "Symmetrical design ensures fan balance. Max load per arm: 0.5 kg. Total load: 3 kg."
Usability Issues Addressed on Sketch:
A small icon of a person easily pushing the fold button is shown with the text "One-Touch Folding".
A note points to the mounting collar: "Universal fit for standard ceiling fan rods."



Shown below is a part of a "S shaped motif". Dotted lines indicate the incomplete part of the motif. Visualize the remaining motif and draw the complete motif with a height of 15 cm. DO NOT draw the dotted lines. 
Shown on the left is a set of equations. Which option belongs to the same set? 
Shown below is an arrangement of closely stacked spheres. Assume each one to be in contact with its immediate neighbour. What is the total number of points where the spheres touch each other?
The words given below are written using a particular font. Identify the digit that does not belong to the same font.
Shown below are three perspective views of a solid object. How many surfaces does the object have? Assume hidden surfaces to be flat.
Which option will replace the question mark? 