Nursing Elites

1. What is the difference between mass and weight?

• A. Mass is the amount of matter in an object, whereas weight is the force of gravity acting on an object.
• B. Mass is a measure of inertia, whereas weight is a measure of the force of gravity acting on an object.
• C. Mass is measured in pounds, whereas weight is measured in kilograms.
• D. Mass is a vector quantity, whereas weight is a scalar quantity.

Correct answer: A

Rationale: Mass is the amount of matter in an object and is a scalar quantity, whereas weight is the force of gravity acting on an object and is a vector quantity. Mass remains constant regardless of the location, while weight can vary depending on the strength of gravity at different locations. Answer choice A correctly defines the difference between mass and weight, making it the correct answer. Choice B is incorrect because mass is not a measure of inertia. Choice C is incorrect as mass is typically measured in kilograms, not pounds. Choice D is incorrect as mass is a scalar quantity, and weight is a vector quantity.

2. Which of the following structures is the natural pacemaker of the heart?

• A. Sinoatrial node
• B. Submental node
• C. Atrioventricular node
• D. Scalene node

Correct answer: A

Rationale: The sinoatrial (SA) node is often referred to as the natural pacemaker of the heart because it is a group of cells located in the right atrium responsible for initiating the electrical signals that coordinate the heart's contractions. The SA node sets the rate and rhythm of the heartbeats, making it a crucial component in the heart's function. The other options, Submental node, Atrioventricular node, and Scalene node, are not related to the regulation of the heart's electrical activity. The Submental node is a lymph node located under the chin, the Atrioventricular node is responsible for passing electrical signals from the atria to the ventricles, and the Scalene node does not exist in the context of the heart's electrical system.

3. On a floor plan drawn at a scale of 1:100, the area of a rectangular room is 30 cm². What is the actual area of the room?

• A. 30,000 cm²
• B. 300 m²
• C. 3,000 m²
• D. 30 m²

Correct answer: D

Rationale: On a 1:100 scale drawing, each centimeter represents one meter. The area of the room in the scale drawing is 30 cm², which means the actual area is 30 m². Choice A (30,000 cm²) is incorrect as it doesn't account for the scale conversion. Choice B (300 m²) is incorrect because it multiplies the scale area directly by 10,000, which is not the correct conversion. Choice C (3,000 m²) is also incorrect as it applies the scale factor incorrectly.

4. Where should a semicolon be placed in the following sentence: 'He loves reading comics, playing video games, and spending time with friends'?

• A. He loves reading comics; playing video games, and spending time with friends.
• B. He loves reading comics, playing video games; and spending time with friends.
• C. He loves reading comics, playing video games, and spending time with friends.
• D. No semicolon needed.

Correct answer: B

Rationale: A semicolon is used to separate items in a list when the items themselves contain commas. In the sentence provided, 'playing video games' and 'spending time with friends' are the items that contain commas. Therefore, the correct placement of the semicolon is before the conjunction 'and,' as shown in option (B). Choice (A) incorrectly places the semicolon after 'comics,' disrupting the parallel structure. Choice (C) does not use a semicolon where needed. Choice (D) is incorrect as a semicolon is required in this context to maintain proper punctuation in the list.

5. Bi, re, and un are:

• A. Suffixes, appearing at the beginning of base words to change their meaning
• B. Suffixes, appearing at the end of base words to enhance their meaning
• C. Prefixes, appearing at the beginning of base words to emphasize their meaning
• D. Prefixes, appearing at the beginning of base words to change their meaning

Correct answer: D

Rationale: Bi, re, and un are prefixes, not suffixes. Prefixes are added at the beginning of base words to change their meanings. Therefore, choices A, B, and C are incorrect because they refer to suffixes or emphasize, which is not the case for these prefixes.

Similar Questions