Red Seal Plumbing Practice Exam

Water quality can be measured by several physical characteristics, such as temperature, taste, colour, and turbidity. These characteristics are commonly used because they provide information on both the chemical and physical properties of water. Option A is incorrect because hardness is not a commonly used characteristic to measure water quality. Option C is incorrect because pH level and alkalinity are more commonly used to measure water quality than colour and odour. Option D is incorrect because hardness and alkalinity are not commonly used to measure water quality, and taste is usually a more important factor than colour. Therefore, option B is the best answer as it includes the most commonly used characteristics for measuring water quality.