更多"Vents are led from the engine to he"的相关试题:
[单项选择]Vents are led from the engine to the head tank for the release of （） from the cooling water.
A. air
B. heat
C. sludge
D. steam
[单项选择]Head tank should be used to remove （） from cooling water.
A. scale
B. sludge
C. chemicals
D. air
[单项选择]What is head tank in the closed cooling water system used for?（）
A. for the release of air from the cooling water
B. providing expansion room for heated cooling water
C. a place for implementing water and water treatment agent
D. all of the above
[单项选择]The outlet from an expansion tank of a closed freshwater cooling system should be piped to the （）.
A. cylinder head water outlet header
B. cylinder jacket inlet main
C. heat exchanger inlet connection
D. jacket water pump suction line
[单项选择]The lubricating oil is pumped from the drain tank, very often with （） in the suction line.
A. a filter
B. a strainer
C. a magnetic filter
D. a fine strainer
[单项选择]The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.
A. a strain tank
B. a head tank
C. a service tank
D. a strainer
[单项选择]EXCEPT when suffering from a head or chest injury a patient in shock should be placed in which position?（）.
A. Head up and feet down
B. Head down and feet up
C. Flat on back with head and feet elevated
D. Arms above the head
[单项选择]Expansion tank should be used to remove （） from cooling water.
A. scale
B. sludge
C. chemicals
D. air
[单项选择]For the purpose of（）tank or hold washings from any vessel，an application shall be made to Harbor Authorities for approval.
A. discharging
B. recircling
C. loading
D. taking in
[单项选择]The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are（）.
A. bow and stern lines
B. breast lines
C. halyards
D. warps
[单项选择]Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
A. cofferdams
B. empty cargo spaces
C. gas tight bulkheads
D. areas equipped with power ventilation
[单项选择]Regulations require that pumprooms on tank vessels carrying grade C liquid cargo with machinery spaces below the freeboard deck be ventilated with（）.
A. power ventilation
B. gooseneck vents and flame screens
C. at least two ducts extending to the weather deck
D. a vent header system
[单项选择]You are requisitioning stores for your tank vessel. What type of matches are permitted aboard?（）
A. Phosphorous
B. Safety
C. Self-extinguishing
D. Wooden
[单项选择]On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
A. hydraulic
B. electric
C. steam
D. diesel
[单项选择]A tank vessel transferring non-flammable hazardous cargo in bulk must display warning signs. These signs must（）.
A. be visible from both sides and from forward and aft
B. indicate NO SMOKING
C. be displayed only while transferring cargo and fast to a dock
D. use black lettering on a white background
[单项选择]Regulations require that cargo pumprooms on tank barges (constructed in 1965) carrying grades B or C liquid cargoes have power ventilation systems which can completely change the air in （）.
A. 1 minute
B. 3 minutes
C. 5 minutes
D. 10 minutes
[单项选择]Approximately what percent of tank space should be left for expansion of oil due to possible temperature increase?（）
A. 1% to 3%
B. 1% to 2%
C. 4%
D. 2% to 4%
[单项选择]双喷嘴喷码机READY HEAD1，HEAD2恒亮表示意思是（）
A. 表示该喷头未启动或已关闭
B. 表示该喷头已启动但未准备就绪或有故障
C. 表示该喷头准备就绪，可以喷印
D. 表示该喷码机已关闭
[单项选择]双喷嘴喷码机READY HEAD1，HEAD2闪亮表示意思是（）
A. 表示该喷头未启动或已关闭
B. 表示该喷头已启动但未准备就绪或有故障
C. 表示该喷头准备就绪，可以喷印
D. 表示该喷码机已启动完成，可以进行任何操作
