Which word describes a screen or filter?

Correct Answer: A

Rationale: The word 'permeable' refers to a material or surface that allows liquids, gases, or substances to pass through it, while screening or filtering out impurities. This makes it an appropriate descriptor for a screen or filter, which function by allowing certain elements to pass through while retaining others. Choices B, C, and D are incorrect: 'Incendiary' means causing fires, 'Exuding' means giving off or releasing, and 'Resilient' means able to withstand or recover from difficult conditions.

Correct Answer: C

Rationale: A "nostrum" is a term used to describe a questionable or untested remedy or medication that claims to cure ailments. In this context, as a remedy is suggested to cure certain ailments, "nostrum" fits best in providing an alternative word that aligns with the situation. The other choices are not synonyms for a remedy that cures ailments. 'Inoculation' refers to the introduction of a vaccine, 'indicator' is something that provides information or signals, and 'serum' is a component of blood or a medication, none of which directly align with the concept of a remedy curing ailments.

Correct Answer: C

Rationale: The word 'impugn' means to challenge or attack the truth, integrity, validity, or honesty of something. It is not related to instilling (A), instructing (B), lamenting, or complaining (D). Impugn specifically involves questioning the accuracy or validity of a statement or argument, making choice C the correct answer.

Correct Answer: C

Rationale: Replete means filled to the utmost capacity or complete in every detail. Therefore, the best definition of replete from the given choices is 'full.' Choice A, 'hardy,' does not accurately reflect the meaning of replete. Choice B, 'quiet,' is unrelated to the definition of replete. Choice D, 'sad,' is also not synonymous with the term replete.

Correct Answer: C

Rationale: When someone is at the zenith of their career, it means they have reached the highest point or peak of success in their professional life. This suggests that they have achieved their utmost potential and are enjoying the height of their career accomplishments. Choice A, 'just getting started,' is incorrect as it implies the beginning of a career rather than the peak. Choice B, 'preparing for retirement,' is incorrect because being at the zenith of one's career usually signifies the prime of one's professional success, not the preparation for retirement. Choice D, 'having trouble with your superiors,' is incorrect as it is unrelated to the concept of reaching the peak of success in one's career.

Correct Answer: B

Rationale: The correct answer is B: Radius. The forearm consists of two long bones: the radius and the ulna. The radius is located on the thumb side of the forearm and is shorter than the ulna, which is on the pinky side. The humerus is the bone located in the upper arm, the scapula is the shoulder blade bone, and the fibula is a bone in the lower leg. Therefore, they are not the shorter bone in the forearm.

Correct Answer: D

Rationale: To take umbrage at something means to feel offended or resentful by it. It implies feeling upset or insulted by someone's words or actions. The correct answer is D, 'be offended by it,' as it best captures the meaning of the phrase 'take umbrage.' Choice A, 'reprimand it,' is incorrect as it suggests scolding or rebuking something, which is the opposite of feeling offended by it. Choice B, 'stand beneath it,' is unrelated and does not convey the meaning of being offended or resentful. Choice C, 'speak well of it,' is also incorrect as it means to praise or approve of something, which is contrary to feeling offended.

Correct Answer: A

Rationale: In this context, 'dilute' means to make the medicine less concentrated by adding water or another liquid. It is important to dilute certain medicines to ensure they are safe and effective for a patient's use. Choice B, 'Reduce by half,' is incorrect as diluting does not necessarily mean reducing by half; it means to make less concentrated. Choice C, 'Warm up,' is unrelated to the meaning of dilute. Choice D, 'Decontaminate,' is also incorrect as dilute refers to reducing the concentration of a substance, not removing contaminants.

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.