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Which of the following properties a damping oil must possess ? | |
A. | Must be a good insulator [Wrong Answer] |
B. | Should be non-evaporating [Wrong Answer] |
C. | Should not have corrosive action upon the metal of the vane [Wrong Answer] |
D. | The viscosity of the oil should not change with the temperature [Wrong Answer] |
E. | All of the above [Correct Answer] |