John F. Kennedy was the US president during the Cuban Missile crisis General Secretary of the USSR was Nikita Krushchev and Fidel Castro was the Cuban ruler involved in this â¦ crisis.
What is the metal used for most electrical wiring and water pipes? Copper is the most common metal used in electrical wires because it has a structure which includes freely-moving negatively-charged particles-called electrons-which are es â¦ sential for the conduction of electricity.
Pipes which are commonly used in water supply system are given below. Cast Iron (CI) Pipes. Steel Pipes. Galvanized Iron (GI) Pipes. Copper Pipes. Plastic or Polythene or PVC pipes. Asbestos Cement (AC) Pipes.