The most common contaminate of governor hydraulic fluid is （）.
举一反三
- Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and （）. A: fluid friction B: fluid turbulence C: component misalignment D: pressure surge
- Hydraulic fluid contamination may result in hydraulic failure and thus poses a threat to flight safety.
- The hydraulic （） is used to control engine speed. A: motor B: pump C: governor D: capsta
- Standpipe in the bottom of reservoir can store the amount of hydraulic fluid for emergency operation.
- Which of the following devices is common to both mechanical and hydraulic governors?（）