a water cooled condenser
a slop tank
a expansion tank
a centrifugal pump
第1题:
Self-contained breathing apparatus is used to ______.
A.make underwater repairs to barges
B.determine if the air in a tank is safe for men
C.enter areas that may contain dangerous fumes or lack oxygen
D.resuscitate an unconscious person
第2题:
Gas masks ______.
A.should be worn while fighting a fire
B.can be used in atmospheres deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
第3题:
● (74) is a contiguous,numbered set of variables of a given base type,which can be used and passed to functions as a unit.
(74) A.Record
B.Array
C.Parameter
D.File
第4题:
forecasts
observations
analyses
reports
第5题:
第6题:
A. route list
B. route group
C. gateway list
D. route pattern
第7题:
第8题:
Plain language is usually used on marine weather______.
A.forecasts
B.observations
C.analyses
D.Reports
第9题:
A commonly used abbreviation such as NYC is used
The name is spelled out
The geographical coordinates are used
The radio station call sign for the nearest marine radio station is used
第10题:
control the back pressure of return oil
lock the oil lines under some conditions
change the direction of oil flow
act as relief valve