Registered Dietetic Technician Test Registered Dietetic Technician Test Food Science & Dietary Planning 2

Question 1

Which type of dietary fiber is most effective at lowering LDL cholesterol?

Accepted Answer

Soluble fiber

Answer

Soluble fiber, such as beta-glucan found in oats, forms a gel in the digestive tract that binds bile acids and lowers LDL cholesterol.

Question 2

In food service, the FIFO inventory method stands for:

Accepted Answer

First In, First Out

Answer

FIFO (First In, First Out) ensures older stock is used before newer stock, reducing spoilage and food waste.

Question 3

Which temperature range is considered the 'danger zone' for bacterial growth in foods according to the USDA?

Accepted Answer

40°F to 140°F (4°C to 60°C)

Answer

The USDA defines the temperature danger zone as 40°F–140°F, where bacteria multiply rapidly in potentially hazardous foods.

Question 4

Which nutrient is the primary fuel source for the brain under normal dietary conditions?

Accepted Answer

Glucose

Answer

Glucose derived from carbohydrates is the brain's preferred and primary fuel source under normal metabolic conditions.

Question 5

An adequate intake (AI) value is established when:

Accepted Answer

Evidence is insufficient to establish an RDA but a value is still needed

Answer

The AI is used as a reference intake when evidence is too limited to establish a full RDA, based on observed or estimated adequate intakes.

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