更多"The valve which is most suited for "的相关试题:
[单项选择]Each cylinder has one starting valve which is usually opened by air pressure and closed by （）
A. nuts and bolts
B. new joints
C. spring force
D. sealing rings
[单项选择]A(n) （） is a special type of valve which prevents the passage of steam but allows condensate to pass.
A. check valve
B. non-return valve
C. steam trap
D. quick closing trap
[单项选择]The valve best suited for throttling gas or liquid flow in a pipeline is the（）.
A. gate valve
B. globe valve
C. check valve
D. plug cock
[单项选择]The diesel engine valve subjected to most severe conditions of service is the （）.
A. cylinder exhaust valve
B. air starting valve
C. air inlet valve
D. cylinder relief valve
[单项选择]
Leaky exhaust valve will result in which of the following?（）
(1) high exhaust temperature;
(2) low compression pressure;
(3) low firing pressure.
A. (1) and (2)
B. (1) only
C. (2) only
D. (1),(2) and (3)
[单项选择]Which will most likely occur when entering shallow water? （）
A. Rudder action will become more effective
B. The vessel's list will change
C. The vessel's trim will change
D. An increase in speed will occur
[单项选择]On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）
A. Clove hitch
B. Figure-eight knot
C. Fisherman's bend
D. Overhand knot
[单项选择]Valve overlap is the period during which （）.
A. the inlet valve is open
B. the exhaust valve is open
C. both valves are closed
D. both valves are open
[单项选择]A built-up exhaust valve is one in which （）.
A. the stem and heads are made of different material
B. low-alloy steel is used throughout
C. a replaceable valve disk is welded to the head
D. the self-centering action comes from motion of the valve stem in the guide
[单项选择]Which instrument is most useful in forecasting fog（）.
A. A barometer
B. An anemometer
C. A sling psychrometer
D. A pyrometer
[单项选择]Which extinguishing agent is most effective on a mattress fire?（）
A. CO2
B. Foam
C. Dry Chemical
D. Water
[单项选择]Which is the most serious type of fracture?（）
A. Compound
B. Greenstick
C. Closed
D. Crack
[单项选择]In which situation could a vessel most easily capsize?（）
A. Running into head seas
B. Running in the trough
C. Running with following seas
D. Anchored with your bow into the seas
[单项选择]The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
A. controls the amount of gasoline to the engine
B. shuts off the gasoline supply at the tank
C. is used if the gasoline tank leaks
D. All of the above
[单项选择]which function is the most important one of the GMDSS.（）
A. alerting
B. on-scene communication
C. safety information
D. general communication
[单项选择]Which of the following pumps is most suitable for an oily water separator?（）
A. reciprocating pump
B. vane pump
C. mono pump
D. axial-flow pump
[单项选择]Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）
A. Lube oil is diluted and its viscosity is reduced
B. Sulfuric acid is formed
C. Bearings become pitted ad immediately fail
D. Valve stems develop sludge deposits
[单项选择]Which of the equipment listed is most effective in processing bilge slops for overboard discharge?（）
A. 100PPM oily water separator
B. Assembling the lube oil purifier as a separator and aligning bilge overboard
C. A 15PPM oily water separator
D. A magnetic duplex strainer
[单项选择]Which arrangement of shell plating is used most in modern shipbuilding（）.
A. Clinker
B. Flush
C. In-and-Out
D. Joggled
