Why Do Hot Water Heaters Lose Their Efficiency Quicker in Households

question 57

Multiple Choice

Why do hot water heaters lose their efficiency quicker in households with hard water?

• A)The hard water calcium and magnesium ions corrode the heating element.
• B)The hard water calcium carbonate deposits oxidize the inner tank wall.
• C)The calcium carbonate on the inner surface of the hot water tank builds up to the point that it insulates the water from the heating element.
• D)The hard water calcium ions exchange with iron ions from the inner metal wall which react with the water heater base to form rust and deteriorate the bottom of the tank.

Identify the elements of mastery in a variety of skills beyond rote memorization.

Understand the relationship between the prices of capital and labor and their substitution in production.

Comprehend the concepts of marginal and average product of labor.

Identify the point of diminishing returns.

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Definitions:

Single-family Dwelling

A residential structure designed to house one family unit independently.

Common Parts

Areas within a property or building that are available for use by all occupants or owners, such as lobbies, gyms, and shared outdoor spaces.

Increase

To make or become greater in size, amount, intensity, or degree.

Rent

The payment made by a tenant to use property owned by someone else for a predefined period.