16) Which material is the most suitable for absorption of vibration?
a) Steel
b) Cast iron
c) Aluminium
d) Manganese Bronze
e) Bronze
To determine the most suitable material for absorption of vibration, you need to consider the properties of the materials listed: steel, cast iron, aluminum, manganese bronze, and bronze.
Vibration absorption is determined by a material's ability to dampen or decrease the amplitude of vibrating waves passing through it. This property is influenced by the material's elasticity, density, and internal structure.
One way to compare these materials is to examine their Young's modulus (a measure of a material's stiffness or elasticity), as the lower Young's modulus, the better the material's ability to absorb vibrations. Additionally, density plays a role since higher density materials tend to absorb vibrations better.
Here is a breakdown of the materials listed based on their suitability for absorbing vibrations:
a) Steel: Steel is a relatively dense material with a high Young's modulus, making it less suitable for absorbing vibrations.
b) Cast iron: Cast iron is also a dense material with a high Young's modulus, similar to steel. It may not be the best choice for vibration absorption.
c) Aluminium: Aluminum has a lower density and a lower Young's modulus compared to steel and cast iron. It is considered a better material for vibration absorption compared to them.
d) Manganese Bronze: Manganese bronze is a type of bronze alloy. Bronze typically has a moderate density and a lower Young's modulus than steel or cast iron, making it a better choice for absorbing vibrations compared to them.
e) Bronze: Bronze, like manganese bronze, is a type of alloy with properties similar to those mentioned above. It has a moderate density and lower Young's modulus compared to steel and cast iron, making it a suitable material for vibration absorption.
Based on the information provided, both c) Aluminium and e) Bronze are the most suitable materials for absorption of vibration with their lower Young's modulus and moderate density.