19. Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works? (1 point)
A. It uses radiation to heat up the food.
B. It uses a fan to circulate hot air around the food.
C. It uses conduction to transfer heat to the food.
D. It uses electromagnetic waves to cook the food.
?
B. It uses a fan to circulate hot air around the food.
How is it not A?
A convection oven does not primarily use radiation to heat up the food. While radiation is a form of heat transfer that occurs in any oven, including a convection oven, it is not the main mechanism that makes a convection oven work more evenly.
In a convection oven, a fan is used to circulate hot air throughout the oven cavity. This circulating hot air helps to distribute the heat more evenly around the food and results in more consistent cooking. This is why option B is the correct answer.
19. Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works? (1 point)
• Hot air is transferred through density differences when hot air rises and cool air sinks.
© Hot air is transferred when heat radiates from a thermal burner.
Hot air is transferred through direct molecule contact.
• Hot air is transferred through density differences when cool air rises and hot air sinks.