what does nebulous mean

HESI A2

HESI A2 Vocabulary Practice Test

1. What does Nebulous mean?

A. Clear
B. Vague
C. Distinct
D. Complex

Correct answer: B

Rationale: The correct answer is B: 'Vague.' Nebulous means something that is vague or unclear. Choices A, C, and D are incorrect because nebulous is the opposite of clear, distinct, and complex. Nebulous refers to something lacking definite form or limits, making it difficult to understand or perceive clearly.

2. What is another word for acrid?

A. Bitter
B. Smoky
C. Nimble
D. Severe

Correct answer: A

Rationale: Acrid is often used to describe a sharp, unpleasant smell or taste, which is synonymous with bitterness. The word 'bitter' closely relates to the strong and sharp sensation associated with acrid qualities. Choice B, 'Smoky,' does not capture the sharpness or unpleasantness associated with acrid, as it refers more to the presence of smoke. Choice C, 'Nimble,' and choice D, 'Severe,' are unrelated to the meaning of acrid and do not serve as synonyms in this context.

3. What is the meaning of incorrigible?

A. Curable
B. Incurable
C. Treatable
D. Temporary

Correct answer: B

Rationale: The correct answer is B: 'Incurable.' Incorrigible refers to something or someone that is beyond correction or incurable. It implies a persistent behavior or trait that is difficult or impossible to change. Choice A, 'Curable,' is incorrect because incorrigible means the opposite - not capable of being cured. Choice C, 'Treatable,' is incorrect because incorrigible implies a condition that is resistant to treatment. Choice D, 'Temporary,' is incorrect as incorrigible suggests a long-lasting or permanent state, not something temporary.

4. Which sentence uses the VERB correctly?

A. I saw you standing in line at the Tilt-A-Whirl at the country fair.
B. I sang the national anthem before the country fair moto-cross race.
C. I ran toward the country fair arena with Nibbles the Rabbit.
D. I wore a white shirt and dark jeans to show my goat at the country fair.

Correct answer: D

Rationale: The correct answer is D: 'I wore a white shirt and dark jeans to show my goat at the country fair.' 'Wore' is the correct past tense form of 'wear.' Choice A is incorrect as 'seen' should be 'saw,' which is the correct past tense of 'see.' Choice B is incorrect as 'sung' should be 'sang,' the correct past tense of 'sing.' Choice C is incorrect as 'ran' is the correct verb, but the question specifically asks for the correct use of a verb, not just any verb.

5. What is Hydration?

A. The process of dehydrating
B. Maintenance of body fluid
C. Loss of water
D. Draining fluids

Correct answer: B

Rationale: Hydration refers to the maintenance of body fluids. Choice A is incorrect as it describes the opposite process, dehydration. Choice C is incorrect as it focuses on the result of inadequate hydration rather than the concept itself. Choice D is incorrect as it does not accurately define hydration but rather implies removing fluids.