if a theory is obsolete what is true of it

HESI A2

Vocabulary HESI A2 Practice Test

1. If a theory is obsolete, what is true of it?

A. Up to date
B. Outdated
C. Innovative
D. Scientific

Correct answer: B

Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant. Choices A, C, and D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.

2. Choose the meaning of the word 'exposure' in the following sentence: 'People with weakened immune systems should avoid exposure to flu.'

A. Disclosure
B. Pretense
C. Contact
D. Display

Correct answer: C

Rationale: In this sentence, the word 'exposure' is used to refer to coming in contact with the flu virus. Therefore, in this context, the meaning of 'exposure' is related to 'contact.' Choices A, B, and D are incorrect. 'Disclosure' means revealing information, 'pretense' means pretending, and 'display' means to show or exhibit, none of which captures the intended meaning of 'exposure' in the sentence provided.

3. What is the best description for the term cathartic?

A. Infested
B. Therapeutic
C. Fatiguing
D. Supplementing

Correct answer: B

Rationale: The term 'cathartic' is best described as therapeutic because it refers to something that provides emotional release or purification. It helps in relieving emotional tension, which is a therapeutic benefit. 'Infested' means being invaded by pests, 'Fatiguing' means causing tiredness or exhaustion, and 'Supplementing' means adding to or enhancing something, none of which accurately describe the term 'cathartic.'

4. What does 'Discrete' mean?

A. Continuous
B. Distinct or separate
C. Mixed
D. Combined

Correct answer: B

Rationale: The correct answer is B, 'Distinct or separate.' Discrete refers to something that is individually separate and distinct, not continuous (choice A), mixed (choice C), or combined (choice D). In mathematics and other fields, discrete items are countable and distinct from each other.

5. Select the meaning that best fits the following word: injurious.

A. Toxic
B. Palatable
C. Amenable
D. Harmless

Correct answer: A

Rationale: The correct answer is A, 'Toxic.' 'Injurious' means harmful or likely to cause injury, similar to 'toxic.' Choices B, C, and D are incorrect because 'palatable' means pleasant to taste, 'amenable' means cooperative or willing to agree, and 'harmless' means not causing harm.