A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block
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A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline
A.dog clutch
B.Pair of gears
C.worm gear
D.turning gear
A.cranes
B.mooring barrel
C.capstans
D.cable lifter
A.popular
B.common
C.in lead position
D.uncommon
A.spur geared
B.screw geared
C.worm geared
D.belt driven
A.cranes
B.windlass
C.capstans
D.mooring winches
A.cranes
B.winch barrel
C.capstans
D.windlass
A.cranes
B.winches
C.capstans
D.windlass
A.a new bacteria colony should be put into the plant in advance
B.the disinfection chemicals should be always used
C.the air blower should be started and keep running in advance
D.the nutrient for bacteria should put into plant in advance
A.anaerobic bacteria
B.aerobic bacteria
C.air bubbles
D.disinfection chemicals
最新试题
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
To proceed to the assistance of a ship in distress is（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The condensers located in various stages of a flash evaporator are cooled by（）
（） is not installed on the main switchboar.
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
If separating effect is not good, which measure should be taken （）