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 If a theory is obsolete, what is true of it?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- B. Outdated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Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant.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D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.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. What word meaning 'once a year' fits best in the sentence: 'The _____ family reunion picnic was held at the Jones farm instead of the county park.'
- A. regular
- B. annual
- C. biennial
- D. holiday
Correct answer: B
Rationale: The word 'annual' refers to something that happens once every year. 'Regular' could mean frequent but doesn't specify a yearly event. 'Biennial' refers to something occurring every two years, while 'holiday' relates to a special day of celebration, not necessarily an annual event.
3. What is the crystalline compound that is a product of protein metabolism known as?
- A. uracil
- B. urine
- C. ureter
- D. urea
Correct answer: D
Rationale: Urea is the correct answer. It is the crystalline compound formed in the liver from the breakdown of proteins, a byproduct of protein metabolism. Urea is excreted by the kidneys in the form of urine, aiding in the elimination of nitrogenous waste from the body. Uracil (Choice A) is a nitrogenous base found in RNA, not a product of protein metabolism. Urine (Choice B) is the liquid waste excreted by the kidneys but not the crystalline compound resulting from protein metabolism. Ureter (Choice C) is a duct that carries urine from the kidneys to the bladder, not the compound produced from protein metabolism.
4. Choose the meaning of the word 'yaw' in the following sentence: 'The robotic arm may yaw too much and need adjusting.'
- A. To gape open
- B. To move up and down
- C. To close tightly
- D. To move side to side
Correct answer: D
Rationale: In this sentence, the term 'yaw' refers to a movement where the robotic arm moves side to side. The context suggests that the arm is exhibiting too much of this side-to-side movement and requires adjustment to rectify the issue. Choice A, 'to gape open,' is incorrect as 'yaw' does not imply opening. Choice B, 'to move up and down,' is incorrect as 'yaw' specifically refers to side-to-side movement. Choice C, 'to close tightly,' is incorrect as it does not relate to the movement described in the sentence.
5. Select the meaning of the word 'incidence' in the sentence: 'The incidence of smoking has decreased.'
- A. Prestige
- B. Occurrence
- C. Glamour
- D. Influence
Correct answer: B
Rationale: In this context, 'incidence' refers to the rate or frequency at which something happens, specifically the rate of occurrence of smoking. Therefore, 'Occurrence' is the correct answer. Choice A, 'Prestige,' is incorrect as it refers to reputation or esteem. Choice C, 'Glamour,' is also incorrect as it means attractiveness or charm. Choice D, 'Influence,' is not the best fit as it relates more to the capacity to have an effect on someone or something.
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