If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）
1、The valve on the discharge side of a c
The valve on the discharge side of a cargo pump on a tanker will usually be a（）.Abutterfly valveBspectacle valveCcheck valveDglobe valve
2、The needle valve will open when the fu
The needle valve will open when the fuel pressure acting on the needle valve （） exerts a sufficient force to overcome the spring compression.Atape faceBtapered faceCsurfaceDthinner face
3、If the meter needle of the oxygen indi
If the meter needle of the oxygen indicator cannot be set to zero，what should be done? （）AReplace the batteriesBCheck the sampling tube for...
4、The valve on the discharge side of a c
The valve on the discharge side of a cargo pump on a tank vessel will usually be a（）.Abutterfly valveBspectacle valveCcheck valveDglobe valve
5、The needle valve in the injector （） at
The needle valve in the injector （） at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.Awill liftBwill be liftedCwill closeDwill be closed
6、If the discharge valves on a refrigera
If the discharge valves on a refrigeration compressor are leaking badly, the compressor should （）.Arun continuouslyBnot startChave high discharge pressureDshort cycle on the high pressure switch