Constant pressure system
Variable pressure system
Variable displacement system
Constant volume system
第1题:
Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第2题:
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第3题:
Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第4题:
Which of the following will allow multiple operating systems to run on one workstation?()
第5题:
Which one of the following is not relevant to the others?()
Aairport
Bairfield
Cairline
Dair-conditioned
第6题:
A.ARP
B.IGP
C.BGP
D.EGP
第7题:
Which of the following problems may be encountered by using an oil having a viscosity higher than that specified for an operating hydraulic system?
A.External seal leakage
B.Hunting due to fast response
C.Hydraulic oil film breakdown
D.Increased power consumption
第8题:
Gear pumps are widely used to transfer any one of the following but .
A.fuel oil
B.lube oil
C.hydraulic oil
D.fresh water
第9题:
Which of the following SCSI signaling systems uses one return line for every outgoing line, is less susceptible to interference, signal degradation, crosstalk, and allows a cable length of up to 25 meters?()
第10题:
Which of the following is an interior routing protocol that is used to provide routing within autonomous systems?()