question bank

General Science & Ability

300

questions

133.

What device changes alternating voltage from one level to another?

Transformer

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134.

What is electric current?

The rate of flow of electric charge

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135.

What is the SI unit of electric potential difference?

Volt (V)

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136.

What is the SI unit of electrical resistance?

Ohm (Ω)

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137.

What relationship does Ohm's law express?

Voltage equals current multiplied by resistance (V = IR)

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138.

Approximately what percentage of an adult human body is water?

About 60 percent

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139.

Which dietary component helps promote normal bowel function and is found mainly in plant foods?

Dietary fiber

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140.

Which macronutrient provides the most energy per gram?

Fat

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141.

What is the body's main dietary source of readily available energy?

Carbohydrates

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142.

Which nutrient is made of amino acids and is essential for building and repairing body tissues?

Protein

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143.

What is the primary structural role of the human skeleton?

To support the body, protect organs and provide a framework for movement

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144.

Which organ produces insulin?

The pancreas

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