If a theory is obsolete, what is true of it?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- B. Outdated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Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant.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D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.
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If a treatment mitigates symptoms, the symptoms become ______.
- A. Worse
- B. Less severe
- C. Unchanged
- D. Unbearable
Correct Answer: B
Rationale: The correct answer is B: 'Less severe.' When a treatment mitigates symptoms, it means that it reduces the severity or impact of those symptoms. Therefore, the symptoms would become less severe after the treatment. Choices A, C, and D are incorrect because mitigating symptoms does not make them worse, unchanged, or unbearable; instead, it helps alleviate or reduce their intensity.
Which sentence correctly uses a colon?
- A. She had one goal: to win the race.
- B. He needs milk, eggs, and bread.
- C. The meeting is at 3 PM.
- D. She bought milk, eggs, bread.
Correct Answer: A
Rationale: The correct answer is A: 'She had one goal: to win the race.' This sentence uses a colon to introduce the purpose or explanation that follows. It is a grammatically correct use of a colon. Choice B is incorrect as the colon is not needed after 'needs'; a list of items follows, which does not require a colon. Choice C is a simple statement of time and does not require a colon. Choice D is also incorrect since a colon is not suitable after 'bought'; the items bought are listed without the need for a colon.
What does instigate mean?
- A. Deactivate
- B. Activate
- C. Suppress
- D. Evaluate
Correct Answer: B
Rationale: The correct answer is B: 'Activate.' Instigate means to initiate or provoke a particular event or action. Choice A, 'Deactivate,' is incorrect as it means to make something inactive, which is the opposite of instigate. Choice C, 'Suppress,' is incorrect as it means to restrain or prevent something, not to initiate it. Choice D, 'Evaluate,' is incorrect as it means to assess or judge the value or quality of something, not to start or provoke it.
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.
What does 'expand' mean?
- A. To decrease in size
- B. To increase in size or amount
- C. To spread out
- D. To eliminate
Correct Answer: B
Rationale: The correct answer is B. 'Expand' means to increase in size or amount. Choice A, 'To decrease in size,' is the opposite of what 'expand' means. Choice C, 'To spread out,' is related to expanding but does not precisely define the term. Choice D, 'To eliminate,' is not synonymous with the term 'expand.'