Question 213General Subjects - Assistant Engineer

The correct answer is D) can be adjusted or varied. The arrow superimposed on a hydraulic graphic symbol at approximately 45° indicates that the component can be adjusted or varied. This is because the 45° angled arrow is a standard symbol used in hydraulic diagrams to represent an adjustable or variable component, such as a flow control valve or a pressure relief valve. The other answer choices are incorrect because they do not accurately represent the meaning of the 45° angled arrow symbol. A) is incorrect because the arrow does not indicate pilot control. B) is incorrect because the arrow does not indicate one-way flow. C) is incorrect because the arrow does not indicate pressure compensation.