Correct Answer: B

Rationale: The term 'Precept' refers to a guiding principle rather than just a rule, habit, or punishment. A precept is a general rule or principle guiding behavior, making choice B the correct answer. Choices A, C, and D are incorrect because a precept is more than just a simple rule, habit, or punishment; it encompasses a fundamental guiding principle that influences actions and decisions.

Correct Answer: B

Rationale: The term 'Precept' refers to a guiding principle rather than just a rule, habit, or punishment. A precept is a general rule or principle guiding behavior, making choice B the correct answer. Choices A, C, and D are incorrect because a precept is more than just a simple rule, habit, or punishment; it encompasses a fundamental guiding principle that influences actions and decisions.

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.

Correct Answer: B

Rationale: The correct answer is B: 'Reddened or ruddy appearance.' When someone is flushed, it means they have a red or ruddy complexion, often due to embarrassment, anger, or a physical reaction. Choices A, C, and D are incorrect because 'flushed' specifically refers to a red or ruddy appearance, not swelling, discoloration, or paleness.

Correct Answer: C

Rationale: A flexible tube would be appropriate for navigating through a curved pipe as it can bend and maneuver easily within the pipe's shape. This flexibility allows the plumber to access and address any blockages or issues efficiently. Solid and rigid tubes would be challenging to use in a curved pipe due to their lack of flexibility, making navigation difficult. Perforated tubes, with holes, are not typically used for this purpose and are more suited for specific applications like drainage systems.