Nursing Elites

1. How does the amplitude of a wave relate to its intensity or loudness?

• A. They are inversely proportional.
• B. They are directly proportional.
• C. They have no relationship.
• D. Amplitude affects frequency, not intensity.

Correct answer: B

Rationale: Higher amplitude corresponds to larger displacement from equilibrium and translates to higher intensity or perceived loudness in sound waves.

2. What is the milky-white fluid transported by the lymphatic vessels called?

• A. Plasma
• B. Blood
• C. Chyle
• D. Mucus

Correct answer: C

Rationale: The milky-white fluid transported by the lymphatic vessels is called 'Chyle.' Chyle is formed in the small intestine during the absorption of fats. It primarily consists of lymph and emulsified fats. Plasma refers to the liquid component of blood, while blood carries red blood cells, white blood cells, platelets, and plasma. Mucus is a slimy substance produced by mucous membranes. Therefore, option C, 'Chyle,' is the correct answer in this context.

3. What is the largest muscle in the human body?

• A. Gluteus maximus (buttocks)
• B. Quadriceps femoris (thighs)
• C. Erector spinae (back)
• D. Pectoralis major (chest)

Correct answer: A

Rationale: The gluteus maximus is the largest muscle in the human body, located at the back of the hip and extending from the sacrum to the femur. It is a powerful muscle that plays a crucial role in extending the hip joint, enabling walking, running, and climbing stairs.

4. Which blood vessels are responsible for carrying oxygenated blood away from the heart to the rest of the body?

• A. Veins
• B. Arteries
• C. Capillaries
• D. Venules

Correct answer: B

Rationale: The correct answer is B: Arteries. Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body. They have thick and elastic walls to withstand the high pressure generated by the pumping action of the heart. Veins, on the other hand, carry deoxygenated blood back to the heart, while capillaries are tiny blood vessels where the exchange of oxygen and nutrients occurs. Venules are small veins that collect blood from capillaries and transport it to larger veins. Therefore, arteries are specifically designed to transport oxygenated blood away from the heart, making them the correct choice in this question.

5. What is the main difference between a nuclear reactor and a nuclear bomb?

• A. Reactors use enriched uranium, while bombs use natural uranium.
• B. Reactors have controlled chain reactions, while bombs have uncontrolled chain reactions.
• C. Reactors generate electricity, while bombs cause explosions.
• D. Reactors use moderators, while bombs don't.

Correct answer: B

Rationale: The key difference lies in the control of the fission chain reaction. Reactors have controlled reactions for energy generation, while bombs have rapid, uncontrolled reactions creating explosions.

6. What property of matter remains constant regardless of changes in gravity?

• A. Mass
• B. Weight
• C. Volume
• D. Density

Correct answer: a

Rationale: Mass is the measure of the amount of matter in an object and remains constant regardless of changes in gravity or location. It is an intrinsic property of matter.

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