Answer:
Metals have high melting points thus unlikely to degrade when temperatures increase, they can be fabricated and are cost effective due to availability.
Explanation:
Aluminum is the most abundant in the Earth's crust with good thermal and electric properties. It is soft, malleable ,ductile and lighter making it a vital metal in construction industry. An alloy of copper and tin, bronze is a better connector of heat and electricity ,commonly used in automobile industry for bearings and springs production. Steel a carbon alloy has applications in forging and automotive.
Answer:
The mechanical advantage is 3 to 1
Explanation:
A frictionless pulley with three support ropes carries equal tension on each of the ropes thus;
Tension in each pulley rope = T
Total tension in the 3 ropes = 3 × T = 3·T
Direction of the tension forces on each rope = Unidirectional
Total force provided by the 3 ropes = 3·T
Therefore, a force, T, applied at the end of the rope will result in a lifting force of 3·T
Hence, the mechanical advantage = 3·T to T which is presented as follows;
The mechanical advantage = 3 to 1.
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Answer:
Three material considerations are;
1. Identify and appraise the attainment of the goal of the with the design specification
2. Ascertain the required load the product being designed will experience and the suitability of the design specification to that load
3. Review the producibility of the design to ensure that it can be produced with the available technology
Explanation:
1. The appraisal of the design includes the consideration of the factors of the design and the building of reliability and efficiency into the design from the beginning
2. Ascertain if the product will require toughness, elasticity, and if will be subject to sudden or repeated loading conditions
3. Ensure that the design can be readily produced with the accessible manufacturing equipment during the conceptualization stage of the design.
