Nursing Elites

1. When a dielectric material is inserted between the plates of a charged capacitor, what will happen to the capacitance?

• A. Increase
• B. Decrease
• C. Remain the same
• D. Become unpredictable

Correct answer: A

Rationale: When a dielectric material is inserted between the plates of a charged capacitor, the capacitance will increase. This is because the presence of a dielectric material reduces the electric field between the plates, allowing more charge to be stored for a given voltage, thus increasing the capacitance. Choice B is incorrect because adding a dielectric material increases capacitance. Choice C is incorrect because capacitance changes when a dielectric is added. Choice D is incorrect because the effect of a dielectric on capacitance is predictable.

2. Select the word or phrase that makes this sentence grammatically correct. Before ________ this medicine, consume a modest meal.

• A. having taken
• B. taking
• C. took
• D. will take

Correct answer: B

Rationale: The correct form to use in this sentence is the present participle 'taking.' The sentence should read, 'Before taking this medicine, consume a modest meal.' It is important to use the present participle form when talking about an action that occurs before another action. Choice A 'having taken' is incorrect as it suggests a completed action before consuming a meal. Choice C 'took' is in the past tense, not suitable for indicating an action that should happen before another. Choice D 'will take' is in the future tense, which does not fit the context of the sentence.

3. What percentage of 40 is 8?

• A. 20%
• B. 15%
• C. 10%
• D. 25%

Correct answer: C

Rationale: To find the percentage of 8 in 40, divide 8 by 40 to get 0.2. Multiply this result by 100 to convert it to a percentage: 0.2 × 100 = 10%. Therefore, 8 is 10% of 40, making choice C the correct answer. Choices A, B, and D are incorrect percentages calculated from incorrect divisions and multiplications.

4. Which structure in the eye is responsible for focusing light on the retina?

• A. Cornea
• B. Lens
• C. Retina
• D. Pupil

Correct answer: B

Rationale: The lens of the eye is responsible for focusing light onto the retina. It plays a crucial role in bending light rays to ensure that they converge on the retina, enabling clear vision. The cornea helps in focusing light, but the final adjustment and fine-tuning occur through the lens. The retina receives the focused light and converts it into neural signals for the brain to interpret. The pupil, on the other hand, controls the amount of light entering the eye by dilating or constricting.

5. Place the four words in alphabetical order.

• A. Assemble, assembled, assembling, assembly
• B. Assembly, assemble, assembled, assembling
• C. Assemble, assembly, assembling, assembled
• D. Assemble, assembly, assembled, assembling

Correct answer: C

Rationale: In alphabetical order, 'Assemble, assembly, assembling, assembled' is correct. The alphabetical order is determined by the first letter of each word. The correct sequence starts with 'Assemble,' followed by 'assembly,' then 'assembling,' and finally 'assembled.' Choice A, B, and D do not follow the correct alphabetical order as the words are not arranged alphabetically.

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