Steam at 100°C Enters a Radiator and Leaves as Water

question 59

Multiple Choice

Steam at 100°C enters a radiator and leaves as water (at 80°C) .Take the heat of vaporization to be 540 cal/g.Of the total energy given off as heat, what percent arises from the cooling of the water?

• A)100%
• B)54%
• C)26%
• D)14%
• E)3.6%

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Definitions:

Mean Square Error

A measure of the average of the squares of the errors or deviations, indicating the difference between the estimators and what is estimated.

Mean Absolute Percentage Error

A measure used to predict accuracy in statistics, expressing the average absolute difference between observed and forecasted values as a percentage.

Holt-Winters Multiplicative Model

A forecasting technique that accounts for seasonality, trend, and error in time series data, using multiplicative methods to adjust for these components.

Double Moving Average Model

A forecasting technique that utilizes two moving averages of a time series to identify trends by signaling when the averages cross each other.