Nursing Elites

1. What is the role of the diaphragm in respiration?

• A. To regulate air pressure in the lungs
• B. To contract and expand the lungs
• C. To store oxygen
• D. To break down carbon dioxide

Correct answer: B

Rationale: The correct answer is B. The diaphragm plays a crucial role in respiration by contracting and expanding the lungs. When the diaphragm contracts, it moves downward, creating more space in the chest cavity and allowing the lungs to expand. This expansion leads to a decrease in pressure inside the lungs, causing air to rush in. When the diaphragm relaxes, it moves back up, decreasing the space in the chest cavity and causing the lungs to deflate. This action increases the pressure in the lungs, leading to air being pushed out. Therefore, the diaphragm's main function is to facilitate the inhalation and exhalation of air by contracting and expanding the lungs. Choices A, C, and D are incorrect because the diaphragm's primary function is not to regulate air pressure in the lungs, store oxygen, or break down carbon dioxide. Instead, its main purpose is to aid in the mechanical process of breathing.

2. Robert is planning to drive 1,800 miles on a cross-country trip. If his car gets 30 miles per gallon and his tank holds 12 gallons of gas, how many tanks of gas will he need to complete the trip?

• A. 3 tanks
• B. 5 tanks
• C. 30 tanks
• D. 60 tanks

Correct answer: B

Rationale: To find out how many tanks of gas Robert needs for the 1,800-mile trip, first, we calculate the distance his car can travel on a full tank: 30 miles per gallon × 12 gallons = 360 miles per tank. Next, divide the total trip distance by the distance per tank: 1,800 miles ÷ 360 miles per tank = 5 tanks. Therefore, Robert will need 5 tanks of gas to complete the cross-country trip. Choices A, C, and D are incorrect as they do not accurately calculate the number of tanks needed based on the given information.

3. What is the part of speech of the word 'exhaustive' in the sentence: 'Investigators conducted an exhaustive inquiry into the accusations of corruption'?

• A. Noun
• B. Verb
• C. Adverb
• D. Adjective

Correct answer: D

Rationale: The word 'exhaustive' is an adjective in this sentence. Adjectives modify nouns, and in this case, 'exhaustive' is describing the noun 'inquiry.' A noun, verb, or adverb would not be appropriate here. A noun is a person, place, thing, or idea, which 'exhaustive' is not. A verb is an action word, and 'exhaustive' is not functioning as a verb in this sentence. An adverb typically modifies a verb, adjective, or another adverb, but 'exhaustive' is not serving this function in the sentence provided. Therefore, the correct answer is 'D: Adjective.'

4. Which of the following statements most closely correlates with the definition of the term working man?

• A. A working man is not someone who works for institutions or corporations, but someone who is well-versed in the workings of the soul.
• B. A working man is someone who is probably not involved in social activities because the physical demand for work is too high.
• C. A working man is someone who works for wages among the middle class.
• D. The working man has historically taken to the field, to the factory, and now to the screen.

Correct answer: D

Rationale: Option D provides a succinct summary of the historical shifts in the type of work commonly associated with the 'working man.' It references how the working man has transitioned from agricultural fields to factories and eventually to modern society's dependence on technology, represented by the 'screen.' This progression highlights the evolution of labor and the changing landscape of work over time. Choices A, B, and C do not accurately capture the essence of a working man's historical journey through various types of labor and the societal changes that have influenced it.

5. How many milliliters are in a tablespoon?

• A. 10 ml
• B. 15 ml
• C. 5 ml
• D. 20 ml

Correct answer: B

Rationale: The correct answer is B: 15 ml. One tablespoon is equivalent to 15 milliliters. The conversion factor for tablespoons to milliliters is 1 tablespoon = 15 milliliters. Choice A (10 ml) is incorrect because it is not the standard conversion for a tablespoon. Choice C (5 ml) is incorrect as it is too low for a tablespoon. Choice D (20 ml) is incorrect as it is too high for a tablespoon. Therefore, the correct conversion is 15 milliliters for one tablespoon.

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