Is any one of a special class of devices or equipment that is intended to perform a special plumbing function. its operation and/or control may be dependent upon one or more energized components, such as motors, controls, heating elements, or pressure or temperature-sensing elements. such device or equipment may operate automatically through one or more of the following actions: a time cycle, a temperature range, a pressure range, a pressure range, a measured volume or weight; or the device or equipment may be manually adjusted or controlled by the user or operator.

Plumbing appliance

Explanation:

Plumbing appliance are instrument connected to a water source in order to perform specific plumbing function, this instrument has it operation or control dependent on more energized component such as control or heating element, motor etc. some example of plumbing appliances are water heater, washing machine etc.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle