what does it mean if a theory is obsolete

HESI A2

Vocabulary HESI A2 Practice Test

1. What does it mean if a theory is obsolete?

A. Advanced
B. Outdated
C. Useful
D. Innovative

Correct answer: B

Rationale: If a theory is considered obsolete, it means that it is outdated and no longer in current use or practice. Choice A, 'Advanced,' is incorrect as it implies progression rather than obsolescence. Choice C, 'Useful,' is incorrect because an obsolete theory is no longer considered useful due to being outdated. Choice D, 'Innovative,' is incorrect as it suggests newness and originality, which are opposite to being obsolete.

2. What does concave mean?

A. Rounded inward
B. Rounded outward
C. Straight
D. Flat

Correct answer: A

Rationale: Concave means rounded inward. When something is concave, it curves inwards like the interior of a bowl. Choice B, 'Rounded outward,' is incorrect as this describes a convex shape, not concave. Choice C, 'Straight,' is incorrect as concave refers to a curved shape, not a straight one. Choice D, 'Flat,' is also incorrect as it does not describe the inward curve characteristic of concave shapes.

3. The man's heart attack scared him badly and he decided to have a regular check-up.

A. severely
B. badly
C. intensely
D. profoundly

Correct answer: B

Rationale: In this context, 'badly' is the appropriate adverb to describe the intensity of the fear caused by the heart attack. 'Severely' and 'intensely' do not convey the same meaning in this sentence. 'Profoundly' refers more to depth or seriousness of an emotion, which doesn't fit the context of fear caused by a heart attack.

4. What does the word Querulous mean?

A. Shouting
B. Complaining
C. Crying
D. Praising

Correct answer: B

Rationale: The correct answer is B: 'Complaining.' Querulous is an adjective that describes someone who is constantly complaining or irritable. It is not related to shouting (Choice A) or crying (Choice C). Choice D, 'Praising,' is the opposite of the meaning of querulous and therefore incorrect.

5. Select the sentence in which 'snake' is used as a verb.

A. The snake is in the grass
B. He had to snake his way through the crowd
C. The snake slithered away
D. The spy had to snake his way onto the train

Correct answer: D

Rationale: The sentence 'The spy had to snake his way onto the train' correctly uses 'snake' as a verb. In this context, 'snake' is used to describe the spy's action of moving cunningly and stealthily, similar to how a snake slithers, making it the appropriate choice where 'snake' functions as a verb. The other choices use 'snake' as a noun to refer to the reptile itself or its movement, not as a verb.