Nursing Elites

1. Which type of chemical bond is the strongest?

• A. Ionic
• B. Hydrogen
• C. Covalent
• D. Metallic

Correct answer: C

Rationale: Covalent bonds, especially those formed between non-metals, are the strongest type of chemical bond. In covalent bonds, atoms share electrons, creating a strong bond that requires a significant amount of energy to break. Choice A, ionic bonds, are strong but generally weaker than covalent bonds as they involve the transfer of electrons rather than sharing. Choice B, hydrogen bonds, are relatively weak intermolecular forces, not true chemical bonds. Choice D, metallic bonds, are strong but typically not as strong as covalent bonds. Metallic bonds involve a 'sea of electrons' shared between metal atoms, providing strength but with less directional bonding compared to covalent bonds.

2. According to the Clausius inequality, for a cyclic process involving heat transfer between a system and its surroundings at a single constant temperature (T), the following inequality must hold true:

• A. There is no relationship between heat transfer and temperature in a cyclic process.
• B. ∫ dQ/T ≥ 0
• C. ∫ Q/T = constant
• D. ∫ dQ/T ≤ 0

Correct answer: D

Rationale: The Clausius inequality states that for a cyclic process involving heat transfer at a single constant temperature, the integral of heat transfer divided by temperature (∫ dQ/T) must be less than or equal to zero. This inequality reflects the irreversibility of natural processes. Choice A is incorrect as there is a direct relationship between heat transfer and temperature in the Clausius inequality. Choice B is incorrect because the integral of dQ/T must be less than or equal to zero, not greater than or equal to zero. Choice C is incorrect because the integral of Q/T is not a constant in a cyclic process involving heat transfer at a single constant temperature.

3. During an interview, the nurse states, 'You mentioned shortness of breath. Tell me more about that.' Which verbal skill is used with this statement?

• A. Reflection
• B. Facilitation
• C. Direct question
• D. Open-ended question

Correct answer: D

Rationale: The nurse's statement, 'Tell me more about that,' is an example of an open-ended question. Open-ended questions encourage the interviewee to provide detailed information and expand on their responses. This type of question is useful for gathering narrative information and allows the interviewee to express themselves freely. Reflection involves restating or paraphrasing the client's words, facilitation encourages the client to say more, and direct questions typically elicit specific, close-ended responses, unlike open-ended questions.

4. What does Adhere mean?

• A. To ignore something
• B. To stick to something
• C. To go against something
• D. To pull apart

Correct answer: B

Rationale: The correct answer is B: 'To stick to something.' Adhere means to stay attached or stick to something. Choices A, C, and D are incorrect. Choice A 'To ignore something' is the opposite of adhere, choice C 'To go against something' means to oppose rather than stick to, and choice D 'To pull apart' is the opposite of sticking together.

5. In open-channel flow, a critical property is the free surface, which refers to the:

• A. Interface between the liquid and the container walls
• B. Interface between the liquid and a surrounding gas
• C. Bottom of the channel
• D. Region of highest velocity within the liquid

Correct answer: B

Rationale: The free surface in open-channel flow refers to the interface between the liquid and the surrounding gas, typically the atmosphere. This interface is critical as it determines the boundary between the liquid flow and the open environment. Option A is incorrect as it refers to the liquid-container wall interface, not the free surface. Option C is incorrect because it represents the bottom of the channel, not the free surface. Option D is incorrect as it describes the region of highest velocity within the liquid, not the free surface. Therefore, the correct choice is B.

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