A、(1) only is correct
B、(2) only is correct
C、both (1) and (2) are correct
D、neither (1) or (2) are correct
更多“ When centrifuging heavy fuel oil, an important factor to consider is the （）<br /> (1) flow rate<br /> (2) viscosity of the fuel oil”相关的问题
A、water seal pipe is plugged B、pump is not primed C、seal ring is improperly located D、impeller is flooded
A、centrifugal pump is cheaper than reciprocating pump B、the size of centrifugal pump with same capacity is smaller than that of reciprocating pump C、centrifugal pump makes maintenance easier than reciprocating pump does D、all of the above
A、more sealing water is needed B、the cover clamp needs tightening C、the purifier has a bad vibration when started D、water is discharged from the overflow line
A、centrifugal force rotates the ball-head B、flyweight centrifugal force is balanced by spring force C、flyweight centrifugal force is balanced by hydraulic pressure D、speeder spring alone actuates the fuel control rod
A、A.centrifugal force rotates the ball-head B、B.flyweight centrifugal force is balanced by spring force C、C.flyweight centrifugal force is balanced by hydraulic pressure D、D.speeder spring alone actuates the fuel control rod
客服
TOP
查看正确答案
