Nursing Elites

1. Which of the following is the correct simplification of the expression below? 12 ÷ 3 × 4 - 1 + 23

• A. 6
• B. 21
• C. 38
• D. 23

Correct answer: C

Rationale: The correct order of operations dictates solving division and multiplication before addition and subtraction. Therefore, following the order: (12 ÷ 3) × 4 - 1 + 23 = 4 × 4 - 1 + 23 = 16 - 1 + 23 = 38. Choice A (6) results from adding and subtracting before division and multiplication. Choice B (21) results from incorrect placement of parentheses. Choice D (23) is the last number in the expression and does not reflect the cumulative result of the operations.

2. How many quarts are equivalent to 2 liters?

• A. 1.06 quarts
• B. 0.5 quarts
• C. 2.1 quarts
• D. 4 quarts

Correct answer: A

Rationale: To convert liters to quarts, we know that 1 liter is approximately equal to 1.06 quarts. Therefore, 2 liters would be around 2.12 quarts. However, for practical purposes, it's often rounded to 2.1 quarts. Option A, '1.06 quarts,' is the closest and most accurate approximation. Option B, '0.5 quarts,' is incorrect as it represents half of the actual conversion. Option C, '2.1 quarts,' is close but slightly higher than the actual conversion. Option D, '4 quarts,' is double the correct conversion and is therefore incorrect.

3. Which word best completes the sentence: 'The scientist conducted the experiment with _____ precision.'

• A. extreme
• B. great
• C. utter
• D. remarkable

Correct answer: C

Rationale: In this sentence, the word 'utter' best fits as it emphasizes the absolute and complete accuracy of the experiment. 'Utter' means total or complete, and in this context, it conveys a sense of total precision. Choices A, B, and D do not carry the same connotation of absolute precision. 'Extreme' and 'remarkable' may imply a high level of precision but not necessarily absolute or complete precision. 'Great' is a more general term that does not specifically emphasize the completeness of the precision required in conducting the experiment.

4. Which statement is TRUE about valence electrons?

• A. They are located in the innermost electron shell.
• B. They have the highest binding energy to the nucleus.
• C. They are most likely to participate in chemical bonding.
• D. They have no influence on the element's chemical properties.

Correct answer: C

Rationale: Valence electrons are the outermost electrons in an atom's electron cloud and are crucial in forming chemical bonds with other atoms. These electrons determine the reactivity and chemical properties of an element, making option C the correct statement. Option A is incorrect as valence electrons are found in the outer shell, not the innermost shell. Option B is incorrect because valence electrons have lower binding energy compared to inner electrons. Option D is incorrect since valence electrons play a significant role in an element's chemical behavior.

5. After a long day at work, Tracy had dinner with her family, and then took a walk to the park. What are the transitional words in the preceding sentence?

• A. After, then
• B. At, with, to
• C. Had, took
• D. A, the

Correct answer: A

Rationale: The transitional words in the sentence are 'after' and 'then,' which indicate the sequence of events that occurred. 'After' shows the order in which events took place, while 'then' is used to connect the idea of Tracy having dinner with her family before taking a walk to the park. Choices B, C, and D do not function as transitional words in this context. 'At, with, to' are prepositions indicating location or relationship, 'had, took' are past tense verbs, and 'a, the' are articles used for nouns.

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