Nursing Elites

1. Select the phrase that makes the following sentence grammatically correct: 'Working ____ the mission of the entire committee.'

• A. to peace is
• B. toward peace was
• C. to peace was
• D. toward peace am

Correct answer: B

Rationale: The correct phrase to complete the sentence is 'toward peace was.' In this context, 'toward peace' is the appropriate prepositional phrase to indicate the direction or goal of the work being done. Additionally, the verb tense should be in the past tense ('was') to match the structure of the sentence. Choice A and C are incorrect because 'to peace' does not convey the intended sense of direction or goal. Choice D is incorrect as 'am' is present tense, which does not agree with the past tense structure of the sentence.

2. What is the diameter of a loop if its radius is 6 meters?

• A. 6 m
• B. 12 m
• C. 18 m
• D. 36 m

Correct answer: B

Rationale: The diameter of a loop is calculated by multiplying the radius by 2. Since the radius is 6 meters, the diameter is 6 × 2 = 12 meters. Therefore, the correct answer is 12 meters. Choice A (6 m) is the radius, not the diameter. Choices C (18 m) and D (36 m) are incorrect as they do not reflect the correct calculation for determining the diameter of a loop.

3. Select the word that makes this sentence grammatically correct. We had been working _______ nine hours.

• A. since
• B. near
• C. for
• D. in

Correct answer: C

Rationale: The correct preposition to use in this sentence is 'for.' The sentence should read: 'We had been working for nine hours.' This preposition is used to indicate the duration of time something has been happening. Choice A ('since') is incorrect because it is used to indicate a specific point in time when an action started. Choice B ('near') is incorrect as it does not convey the intended meaning of the sentence. Choice D ('in') is incorrect as it does not appropriately indicate the duration of time the action has been taking place.

4. Which numeric system was a base 20 system?

• A. Mayan
• B. Babylonian
• C. Roman
• D. Arabic

Correct answer: A

Rationale: The Mayan numeric system was a base 20 system, known as vigesimal, as it used base 20 numerals. This system was unique and employed a combination of symbols and positional notation to represent numbers. The Babylonian system was a base 60 system, Roman numerals were based on combinations of letters, and Arabic numerals are in base 10, making choices B, C, and D incorrect.

5. What is the charge of a beta particle?

• A. -1
• B. +1
• C. +2
• D. No charge

Correct answer: A

Rationale: A beta particle has a charge of -1. Beta particles are high-energy, high-speed electrons emitted during radioactive decay processes. Since electrons carry a charge of -1, beta particles also carry a charge of -1. This negative charge indicates that beta particles are negatively charged. Option B is incorrect as it suggests a positive charge, which is not the case for beta particles. Option C is incorrect as it indicates a higher positive charge, which is not true for beta particles. Option D is incorrect as beta particles do have a charge, which is negative.

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