Palm Valley Educational Consult

Question 6

​(a) (ii) Use of G-clamp: To hold wood or metal pieces firmly together during gluing, cutting, or drilling.

(b) (ii) Two thinning agents: Turpentine (for oil-based paints) and Water (for emulsion/latex paints).

(c) Three factors when choosing a mechanism:
​The type of motion required (linear, rotary, etc.).
​The amount of force or load the mechanism must handle.
​The cost and availability of materials needed to build it.

PART A [30 Marks]

​Question 1 (Compulsory)

​(a) Recipe for Sweet Pancakes
​Ingredients: 2 cups Flour, 2 tablespoons Sugar, 1 teaspoon Baking powder, a pinch of Salt, 1 Egg, 1 ½ cups Milk (or water), 2 tablespoons melted Butter/Oil, and Vanilla essence.

​Method:

​Sift the flour, sugar, baking powder, and salt into a bowl.
​In a separate bowl, whisk the egg, milk, melted butter, and vanilla.
​Make a well in the dry ingredients and pour in the wet mixture. Whisk until smooth.
​Heat a lightly greased frying pan over medium heat.
​Pour a ladle of batter onto the pan. Cook until bubbles form on the surface, then flip and cook the other side until golden brown.
​(b) Three reasons for serving a fruit drink with queen cakes:
​Nutritional Balance: Fruit drinks provide vitamins and minerals that complement the carbohydrates in the cakes.

​Palatability: The moisture from the drink makes it easier to swallow the relatively dry texture of queen cakes.
​Efficiency: Since the visitors arrived unexpectedly, a fruit drink is quick to prepare or serve compared to hot beverages.
​(c) Three preparations before freehand cutting a shirt:
​Fabric Preparation: Launder and iron the fabric to remove shrinkage and wrinkles.

​Taking Measurements: Accurately measure the person (chest, shoulder, shirt length, etc.).
​Marking: Lay the fabric flat and use tailor’s chalk to mark the measurements directly onto the cloth.

​Question 2
​(a) Two factors influencing choice of fabric for school uniforms:
​Durability: The fabric must withstand frequent washing and the rigorous activities of students.

​Climate/Comfort: The material should be breathable (like cotton) to ensure students stay cool in warm weather.

​(b) Differentiating between food commodities and food:

​Food Commodities: These are raw, unprocessed agricultural products traded in large quantities (e.g., bulk sacks of grain, raw cocoa beans, or unrefined sugar).

​Food: This refers to any nutritious substance that people eat or drink to maintain life, which can be raw or processed/cooked for immediate consumption.

​(c) Two reasons why it is important to set the table:

​Aesthetics and Appetite: A well-set table looks organized and makes the meal more inviting.
​Etiquette and Convenience: It ensures all necessary cutlery and tools are within reach, promoting orderly eating habits.

​Question 3
​(a) Four types of accidents in a food laboratory:
​Burns or scalds from hot surfaces or liquids.

​Cuts from knives or broken glassware.
​Slips and falls due to spilled liquids or grease on the floor.
​Electric shocks from faulty kitchen appliances.

​(b) Three steps involved in setting up a small-scale business:
​Business Idea and Market Research: Identify what you want to sell and check if people in the area want to buy it.

​Capital Mobilization: Secure the funds needed for equipment, rent, and raw materials.

​Registration/Licensing: Obtain the necessary permits from local authorities to operate legally.

​(c) Design brief for Mr. Asare's home:
​"Design and make a manual or mechanical device that can quickly and uniformly slice okro to reduce food preparation time and prevent late dinners."

​PART B [30 Marks]
​Question 4 (Compulsory)

​(a) (i) Type of joint: Lap Riveted Joint.
(ii) Three tools: Ball pein hammer, Rivet set, and Drill (with bits).

​(b) Sequential Order:
​III. Separate plates and remove all burrs;
​IV. Mark out the holes to receive the rivet and drill;

​V. Select a suitable rivet and insert it in the holes from the back;
​I. Hold down the plates with a rivet set;

​VI. Remove the rivet set and use the face of the hammer to spread out the tail end of the rivet.
​II. Finish off the riveting with an appropriate hammer;

​(c) (i) Two safety precautions when drilling:
​Ensure the metal is firmly clamped in a vice to prevent it from spinning.
​Wear safety goggles to protect eyes from flying metal chips (swarf).
​(ii) One reason riveting was chosen: It provides a permanent, vibration-resistant join without the need for high-heat equipment like welders.

​Question 5
​(a) (i) Name of figure: Cone.
(ii) Projections: (You would draw a triangle for the front view and a circle with a center point for the plan view based on the 60mm height and 40mm diameter).

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