更多"Anchor capstans are used in some in"的相关试题:
[单项选择]Anchor（） are used in some installations where the cable lifter rotates about a vertical axis.
A. windlasses
B. drums
C. capstans
D. warp ends
[单项选择]Which of the following chemicals will be used where protection against caustic cracking is required in boiler treatment?（）
A. Sodium hydroxide
B. Sodium carbonate
C. Sodium nitrate
D. Sodium polyphosphate
[单项选择]What is the normal length of anchor cable used to anchor a vessel?（）
A. An amount equal to the depth of the water
B. Two times the depth of water
C. Three to four times the depth of water
D. Five to seven times the depth of water
[单项选择]What is the bow type anchor shackle primarily used for（）.
A. Chain to chain connections
B. Chain to anchor connections
C. Kenter link to anchor connections
D. Wire rope connections
[单项选择]The （） is used to handle the anchor.
A. steering gear
B. windlass
C. deck crane
D. warping drum
[单项选择]Valve cages are used on some large diesel engines to （）
A. reduce wear on the valve stem
B. permit the use of alloy valve seat materials
C. reduce heat transfer from the valve seat
D. facilitate valve removal for servicing
[单项选择]（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.
A. Chains
B. Wires
C. Ropes
D. Lines
[单项选择]If an anchor windlass has been idle for some time, you should （）.
A. repack all valve stems
B. lubricate it prior to use
C. replace the foundation bolts
D. balance the warping heads
[单项选择]In a central cooling system, used in some modem ships, sea water is supplied to cool （）which will circulate to other individual cooler, greatly reducing the corrosion problems.
A. fresh water
B. sea water
C. cooling oil
D. emulsion
[单项选择]The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.
A. water
B. oil
C. heat
D. steam
[单项选择]Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?（）
A. Geographical positions outlining the area of the sector
B. True bearings as observed from the ship toward the light
C. An outline of the area of the sector
D. True bearings as observed from the light toward the ship
[单项选择]In motor ship, （） is often used to recover some of the heat carried in the exhaust gases from the main engine.
A. an diesel oil heater
B. a waste heat boiler
C. a fresh water generator
D. all the above
[单项选择]The （） engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.
A. four-stroke
B. two-stroke
C. slow speed
D. reversible
[单项选择]The refrigerant flows through the evaporator, where it （） heat from the refrigerated space.
A. extracts
B. releases
C. gives no
D. absorbs no
[单项选择]anchor表示（）
A. 列表
B. 标题
C. 属性
D. 锚点
[单项选择]A sea anchor is（）.
A. a heavy anchor with an extra long line used to anchor in deep water
B. a cone shaped bag used to slow down the wind drift effect
C. a pad eye to which the sea painter is made fast
D. made of wood if it is of an approved type
[单项选择]We（）let go port anchor.
A. are going to
B. is going to
C. were going to
D. was going to
