更多"[单选题]Of the following pumps, ___wor"的相关试题:
[单选题]Reciprocating pumps are suitable for delivering
A.small quantities at high pressure
B.large quantities at high pressure
C.moderate quantities at moderate pressure
D.large quantities at low pressure
[单选题]In general,reciprocating pumps arefor delivering small quantities at high pressure.
A.able
B.enabled
C.suitable
D.capable
[单选题]Displacement pumps are those the volume of the pump chamber is alternately increased to draw the liquid in from the suction pipe.
A.that
B.where
C.when
D.which
[单选题]Centrifugal pumps can be designed with a number of impellers to attain a high final delivery pressure.
A.in parallel
B.in series
C.in bank
D.in line
[单选题] Centrifugal pumps have what advantage（s）over reciprocating pumps ________．
A.They are less expensive
B.They are smaller for equivalent pumping ability
C.They pump more cargo in less time
D.All of the above
[单选题] ______________should start the fire pumps in machinery spaces and see that full pressure is put on fire mains.
A. Bridge personnel
B. Deck hands
C. The OOW
D. Engine room personnel
[单选题] ETA／PILOT REVERTING means：
A. ETA pilot station has been given
B. ETA pilot station will be given afterwards
C. ETA pilot station was not given
D. ETA pilot station is given
[单选题]The simplest means of piston cooling is
A.at splash or spray
B.by splash or spray
C.from splash and spray
D.for splash and spray
[单选题]means that both exhaust ports and scavenging ports are arranged on the opposite side.
A.Uniflow scavenging
B.Cross scavenging
C.Loop scavenging
D.Straight scavenging
[单选题] If you think getting a certificate means getting a job, you are __( )_ yourself.
A. keeping
B. having
C. cheating
D. doing
[判断题]1ndependence means the state has full control over both domestic and foreign affairs, and is subject to or a dependent upon no other authority.
A.正确
B.错误
[判断题]The method of categorizing the means of acquisition of territory is pasted upon Roman law.
A.正确
B.错误
[多选题]which statements about the means of reparations are correct?
A. Monetary compensation is one of the most important means of reparation.
B. Monetary compensation is paid for material or non.material damages to the injured state.
C. Reparation can also be achieved through the way of what is termed satisfaction.
D. satisfaction may include officials apologize, punishment of guilty minor officials or the formal acknowledgment of the unlawful character.
[单选题] Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．
A.Radio direction finder
B.Satellite EPIRBs
C.MF/HF DSC
D.VHF homing device
[单选题] Which of the following statements concerning cargo is correct?
A. Cargoes are any type of goods transported by any type of ships.
B. Cargoes are goods transported in bulk.
C. Cargoes usually include goods transported in bulk and in containers.
D. Cargoes are usually packaged in containers.
[单选题]Sealing in pump shaft is achieved by means of
A.the gasket
B.the packing
C.the washer
D.the spring
[单选题] PORT A BIT SLUGGISH means that port rudder ______.
A. answer very well
B. rudder answers all right
C. answers slow
D. answers fast
[单选题] The helm commang NOTHING TO PORT means do NOT ______ .
A. use left rudder
B. steer to left of the ordered course
C. steer to right of the ordered course
D. leave any bouys on the port side
[单选题] The navigational term “SET OF CURRENT” means ______.
A. velocity of current in knots
B. direction from which the current flows
C. estimated current
D. direction toward which the current flows
