更多"[单选题] The perforated，elevated botto"的相关试题:
[单选题]The chain transmission,forming the connection between___and the camshaft,is enclosed in the chain drive
A.the turning gear
B.the crankshaft
C.the connecting rod
D.the piston rod
[单选题] Deficient oxygen content inside a chain locker can be detected with ______．
A.litmus paper
B.combustible gas indicator
C.oxygen breathing apparatus
D.oxygen indicator
[单选题] A design modification of an anchor chain which prevents kinking is the ______．
A.Detachable link
B.Stud link
C.Kenter link
D.Connecting link
[单选题] Tugs sometimes shackle a length of chain in the towline in order to ______．
A.Take the wear should the towline drag bottom
B.Assure that if the towline is overstressed it will part close to the bridle
C.Prevent the towline from whipping should it part
D.Put spring in the towline
[单选题]A chain bridle is used when towing astern because it ______．
A.Is easy to connect
B.Provides an effective catenary and absorbs shock due to its weight
C.Makes rigging a swivel unnecessary
D.Prevents the tow from yawing by the drag of the chains in a seaway
[单选题] What is meant by veering the anchor chain?
A. Bring the anchor to short stay
B. Heaving in all the chain
C. Locking the windlass to prevent more chain from running out
D. Paying out more chain
[单选题]A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain ______．
A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above
[单选题] What can cause a lack of oxygen in a chain locker ________．
A.Absorption
B.Osmosis
C.Evaporation
D.Oxidation
[单选题] Generally speaking，the most favorable bottom for anchoring is ______．
A.Very soft mud
B.Rocky
C.A mixture of mud and clay
D.Loose sand
[单选题] Top and bottom inner graduated borderlines of the chart are__________.
A. scales of latitude
B. scales of longitudes
C. compass rose
D. source data
[单选题] Deballasting a double bottom has what affect on KG _________.
A. KG is increased
B. KG is decreased
C. KG is not affected
D. KG increases at light drafts and decreases at deep drafts
[单选题] Which chart symbol indicates the bottom is clay ?
A. Cly
B. Cla
C. Cl
D. C
[单选题] LIFTING THE ANCHOR FROM THE BOTTOM is called ______.
A. broaching the anchor
B. shifting the anchor
C. walking the anchor
D. weighing the anchor
[单选题] A term applied to the bottom shell plating in a double-bottom ship is ______．
A.bottom floor
B.outer bottom
C.shear plating
D.tank top
[单选题] Frames to which the tank top and bottom shell are fastened are called ______．
A.floors
B.intercostals
C.stringers
D.tank top supports
[单选题] A Doppler log in the bottom return mode indicates the ______.
A. velocity of the current
B. bottom characteristics
C. depth of the water
D. speed over the ground
[单选题] Bottom stowage on board a ship is usually given to _______.
A. dry cargoes
B. heavy cargoes
C. delicate cargoes
D. the cargoes bound for the first port of call
