what does concave mean

HESI A2

HESI A2 Vocabulary Practice Test

1. 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.

2. What is the description of the word ENVIRONMENT?

A. The major ideas of the quality of life.
B. The assistance found outside the family.
C. The elements inside and outside of a person.
D. The positive and negative aspects of a home.

Correct answer: C

Rationale: The correct answer is C because the environment refers to the surroundings or conditions in which a person, animal, or plant lives or operates, encompassing both internal and external factors. Choices A, B, and D are incorrect as they do not accurately define the concept of 'environment.' Choice A is too broad and does not specifically address the components of an environment. Choice B is vague and does not capture the entirety of what an environment entails. Choice D is limited in scope, focusing solely on a home environment rather than the broader concept of environment.

3. Select the meaning of the word 'untoward' in the sentence: 'His untoward actions during the admission process created a problem for the nurse.'

A. Violent
B. Casual
C. Unseemly
D. Capricious

Correct answer: C

Rationale: The correct answer is C: 'Unseemly.' In this context, 'untoward' refers to actions that are improper or inappropriate. Choice A, 'Violent,' does not accurately reflect the meaning of 'untoward' in the context of the sentence. Choice B, 'Casual,' is unrelated to the negative connotation of 'untoward.' Choice D, 'Capricious,' suggests unpredictability rather than the negative behavior implied by 'untoward.' Therefore, 'Unseemly' is the most appropriate meaning in this context.

4. Which of the following sentences uses the correct form of the verb?

A. She was going to the store
B. She was going to the store
C. She has gone to the store
D. She gone to the store

Correct answer: B

Rationale: The correct answer is 'She was going to the store.' This sentence uses the correct form of the past continuous tense, which is appropriate for describing an action in progress in the past. Choice A is the only option that uses the correct verb form. Choice C uses the present perfect tense, which is not suitable for describing a past action in progress. Choice D is incorrect as it lacks the auxiliary verb 'has' in the sentence structure.

5. What does Abstain mean?

A. To voluntarily refrain from something
B. To consume something
C. To eat
D. To encourage

Correct answer: A

Rationale: The correct answer is A: 'To voluntarily refrain from something.' Abstain means to choose not to do or have something, especially something you like or enjoy. Choices B, C, and D are incorrect because abstain does not mean to consume something, to eat, or to encourage. It specifically refers to the act of voluntarily refraining from an action or practice.