Nursing Elites

1. Which concentration unit depends on pressure?

• A. ppm
• B. ppb
• C. molarity
• D. molarity, ppb, and ppm

Correct answer: C

Rationale: The correct answer is 'C: molarity.' Molarity is the concentration unit that depends on pressure. In molarity, the concentration of a solution is expressed as the number of moles of solute per liter of solution. This means that changes in pressure can affect the volume of the solution and consequently the concentration. Choices A and B, ppm (parts per million) and ppb (parts per billion), respectively, are independent of pressure variations as they are based on mass ratios. Therefore, molarity is the only concentration unit listed that is directly influenced by changes in pressure.

2. What transition should be added to the beginning of sentence 2 below: Mr. Shanbourne just nodded?

• A. Surprisingly
• B. Actually
• C. Furthermore
• D. Instead

Correct answer: A

Rationale: The correct transition to add at the beginning of sentence 2 is 'Surprisingly.' This transition sets the tone for something unexpected or contrary to what was anticipated, emphasizing Mr. Shanbourne's reaction as not typical or predicted. Option B, 'Actually,' would not fit well as it does not imply any sense of surprise or contrast. Option C, 'Furthermore,' is used to add information rather than to indicate a surprising turn of events. Option D, 'Instead,' suggests a replacement or choice between alternatives, which is not suitable in this context.

3. Which of the following statements represents an exaggerated claim in support of the argument presented in this passage?

• A. In the United States, the foreign language requirement for high school graduation varies depending on the state.
• B. Studying a foreign language is crucial for success in the global economy.
• C. High school graduates with foreign language credits have a higher college acceptance rate.
• D. Students who did not study a foreign language are completely unable to secure any job.

Correct answer: D

Rationale: The correct answer is D because it is an exaggerated claim to state that students who did not study a foreign language are completely unable to secure any job. While proficiency in a foreign language may enhance job prospects, it is unrealistic to suggest that not studying one would render someone unemployable. Choice A provides a factual statement about the variation in foreign language requirements, so it cannot be considered an exaggeration. Choices B and C highlight the increasing importance of foreign language skills and the benefits of having them, which are supported by trends and studies. These choices may be debatable, but they are not exaggerated claims.

4. What type of joint connects the bones of the skull?

• A. Hinge joint
• B. Fibrous joint
• C. Ball-and-socket joint
• D. Pivot joint

Correct answer: B

Rationale: The correct answer is B: Fibrous joint. Fibrous joints connect the bones of the skull, providing stability with little to no movement. These joints are made of fibrous connective tissue, which holds the bones tightly together and prevents movement, making them ideal for the structure of the skull. Choice A: Hinge joint is incorrect because hinge joints allow movement in a single plane like the elbow or knee, which is not characteristic of the joints in the skull. Choice C: Ball-and-socket joint is incorrect as this type of joint allows for a wide range of movement in multiple planes, such as the hip and shoulder joints, which is not the case for skull bones. Choice D: Pivot joint is incorrect as pivot joints allow rotation around a central axis, as seen in the joint between the first and second cervical vertebrae (atlas and axis), but not in the skull bones.

5. What is the mode of the numbers in the distribution shown in the table?

• A. 1
• B. 2
• C. 3
• D. 4

Correct answer: A

Rationale: The mode of a set of numbers is the value that appears most frequently. In the distribution shown in the table, the number '1' occurs more times than any other number, making it the mode. Choices B, C, and D are incorrect because they do not represent the number that occurs most frequently in the dataset.

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