Nursing Elites

1. In fluid dynamics, the continuity equation, a fundamental principle, expresses the conservation of:

• A. Momentum
• B. Mass
• C. Energy
• D. Angular momentum

Correct answer: B

Rationale: The continuity equation in fluid dynamics is a statement of the conservation of mass, making choice B the correct answer. It states that the mass entering a system must equal the mass leaving the system, assuming no mass is created or destroyed within the system. Conservation of momentum (choice A) is related to Newton's laws of motion and is not directly expressed by the continuity equation. Conservation of energy (choice C) involves different principles like the first law of thermodynamics and is not the focus of the continuity equation. Angular momentum (choice D) is also a different concept related to rotational motion and not described by the continuity equation.

2. What is the normal pH of human arterial blood?

• A. 6.8
• B. 7.4
• C. 7.9
• D. 8.2

Correct answer: B

Rationale: The normal pH of human arterial blood is approximately 7.4. This slightly alkaline pH is crucial for the proper functioning of enzymes and biochemical processes in the body. Any significant deviation from this pH level can result in serious health issues such as acidosis or alkalosis. Choice A (6.8) is incorrect as it is lower than the normal pH of arterial blood, indicating acidity. Choice C (7.9) and Choice D (8.2) are incorrect as they are higher than the normal pH of arterial blood, indicating alkalinity.

3. What is the author's primary purpose for writing the passage on the Amazon Rainforest?

• A. To entertain readers with facts about the rainforest.
• B. To inform readers about the deforestation of the Amazon.
• C. To persuade readers to visit the Amazon Rainforest.
• D. To criticize the farming practices in the Amazon.

Correct answer: B

Rationale: The author's primary purpose for writing the passage on the Amazon Rainforest is to inform readers about the deforestation and environmental challenges facing the Amazon. The passage provides detailed information about the Amazon Rainforest, its biodiversity, the impact of deforestation on the environment, and the dangers associated with the destruction of the rainforest. Choice A is incorrect because the author's goal is not to entertain but to educate readers. Choice C is incorrect as there is no persuasive language used to encourage readers to visit the Amazon Rainforest. Choice D is also incorrect as the passage does not focus on criticizing farming practices but rather on highlighting the environmental threats and consequences of deforestation.

4. The man's heart attack scared him badly and he decided to have a regular check-up.

• A. severely
• B. badly
• C. intensely
• D. profoundly

Correct answer: B

Rationale: In this context, 'badly' is the appropriate adverb to describe the intensity of the fear caused by the heart attack. 'Severely' and 'intensely' do not convey the same meaning in this sentence. 'Profoundly' refers more to depth or seriousness of an emotion, which doesn't fit the context of fear caused by a heart attack.

5. Select the word that makes this sentence grammatically correct: 'While he was an apprentice, Steve ____ a great deal of time in the studio.'

• A. spends
• B. spent
• C. spended
• D. spend

Correct answer: B

Rationale: 'Spent' is the correct past tense of 'spend.' In this sentence, the action of spending time in the studio already happened while Steve was an apprentice, requiring the past tense 'spent.' 'Spends' is present tense, 'spended' is not a valid word, and 'spend' is present tense without matching the past context of the sentence.

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