if a theory is obsolete what is true of it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 If a theory is obsolete, what is true of it?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B. Outdated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Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant.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D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.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. An alarm that is strident is ___________.

A. shrill
B. muted
C. constant
D. resonant

Correct answer: A

Rationale: A strident alarm is loud, harsh, and piercing. The word 'shrill' specifically denotes a high-pitched and piercing sound, which aligns well with the characteristics of a strident alarm. Therefore, 'shrill' is the most suitable answer in this context. Choices B, C, and D are incorrect because a strident alarm is not quiet (muted), unchanging (constant), or deep and full (resonant), but rather loud and harsh.

3. Which term is descriptive of a small child just learning to walk?

A. Obese
B. Toddler
C. Geriatric
D. Hale

Correct answer: B

Rationale: The correct answer is 'B: Toddler.' A toddler is a young child typically between the ages of one and three who is just learning to walk. 'Obese' (choice A) refers to excess body fat, 'Geriatric' (choice C) pertains to elderly individuals, and 'Hale' (choice D) means strong and healthy, none of which are descriptive of a small child learning to walk.

4. What is the meaning of the word 'derivative' in the following sentence: 'The professor’s lecture seemed to be a bit derivative'?

A. Unoriginal
B. Monotonous
C. Condescending
D. Long-winded

Correct answer: A

Rationale: The word 'derivative' in this sentence means that the professor's lecture was not original, but instead heavily based on or closely imitating something else. Therefore, the correct meaning is 'unoriginal.' Choices B, C, and D are incorrect. 'Monotonous' means lacking in variety and boringly repetitive, 'condescending' means showing a superior attitude, and 'long-winded' means using more words than necessary.

5. What does Manifestation mean?

A. A symptom or sign of a condition
B. An indication or sign of a condition
C. A treatment plan
D. A type of diagnosis

Correct answer: B

Rationale: Manifestation means an indication or sign of a condition. It is not a treatment plan (choice C) or a type of diagnosis (choice D). While choice A is close, 'symptom' is more specific than 'indication' in this context, making choice B the most accurate.