HESI A2 Vocabulary Practice Test

Correct Answer: A

Rationale: The correct answer is A: Prefix. A prefix is a word part placed before a word to change its meaning. It modifies the root word's meaning. For example, adding "un-" before "happy" changes the meaning to "unhappy." Affix (B) is a broader term that includes both prefixes and suffixes. Suffix (C) is a word part placed after a word, and Vocab (D) stands for vocabulary, which is not directly related to changing the meaning of a word.

Correct Answer: B

Rationale: Exposure means coming into contact with something, which aligns with option B. Exposure involves encountering or being subjected to a particular factor or substance. Option A is incorrect as protection is the opposite of exposure. Option C is incorrect as absorption is a specific process following exposure. Option D is incorrect as isolation implies being separated from exposure.

Correct Answer: B

Rationale: Step-by-step rationale: 1. "Precipitous" is often used to describe something happening quickly or suddenly. 2. The word "swift" means happening with speed and quickness. 3. Therefore, "swift" best aligns with the definition of "precipitous." Summary: - Choice A (Slow): Incorrect, as "slow" is the opposite of what "precipitous" typically means. - Choice C (Gradual): Incorrect, as "gradual" means happening slowly over time, opposite of "precipitous." - Choice D (Delayed): Incorrect, as "delayed" refers to something happening later than expected, not the suddenness of "precipitous."

Correct Answer: B

Rationale: Step-by-step rationale for why "Conspiracy" (choice B) is the correct answer for the meaning of Collusion: 1. Collusion involves secret cooperation for illegal or deceitful purposes. 2. "Conspiracy" aligns with the secretive and illicit nature of collusion. 3. Cooperation (Choice A) is too broad and does not specify the clandestine aspect. 4. Separation (Choice C) and Rejection (Choice D) are unrelated to the concept of collusion.

Correct Answer: A

Rationale: Concave means curving inward, creating a hollow or "caved-in" shape. So, choice A "Rounded inward" is correct. Choice B "Rounded outward" is incorrect as it describes a convex shape. Choice C "Straight" is incorrect as concave implies a curved surface. Choice D "Flat" is incorrect as it does not describe a curved shape.