Which of the following is used in modern automobiles to transfer heat energy?
A) Engine coolant B) Refrigerant
C) Both A and B are correct D) Neither A nor B are correct
C
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Indicate whether the statement is true or false
What is the difference between heat loss and heat gain?
A) Heat loss occurs in poorly insulated houses, and heat gain occurs in well insulated houses. B) Heat loss occurs in the winter, and heat gain occurs in summer. C) Heat loss occurs in well insulated houses, and heat gain occurs in poorly insulated houses. D) Heat loss occurs in the summer, and heat gain occurs in winter.
Dew point occurs when the relative humidity is 100%.
Answer the following statement true (T) or false (F)
The article “Vehicle-Arrival Characteristics at Urban Uncontrolled Intersections” presents data on traffic characteristics at 10 intersections in Madras, India. One characteristic measured was the speeds of the vehicles traveling through the intersections. The accompanying table gives the 15th, 50th, and 85th percentiles of speed (in km/h) for two intersections.
a. If a histogram for speeds of vehicles through intersection A were drawn, do you think it would be skewed to the left, skewed to the right, or approximately symmetric? Explain.
b. If a histogram for speeds of vehicles through intersection B were drawn, do you think it would be skewed to the left, skewed to the right, or approximately symmetric? Explain.