更多"Ventilation systems connected to a "的相关试题:
[单项选择]Automatic fire dampers in ventilation systems are operated by a（）.
A. remote operated valve
B. fusible link
C. CO2 system pressure switch
D. heat or smoke detector
[单项选择]Normally，potable water systems are connected directly to the（）.
A. fire-main system
B. feed-water system
C. freshwater sanitary system
D. domestic water tank
[单项选择]Automatic mechanical ventilation shutdown is required for CO2 systems protecting the（）.
A. machinery spaces
B. cargo compartments
C. living quarters
D. galley
[单项选择]An engine compartment gasoline fire requires which type of extinguisher?（）
A. Carbon dioxide
B. Dry chemical
C. Foam
D. All of the above
[单项选择]Combustible material stored in a compartment adjacent to a compartment where there is a fire may be ignitedThis ignition can occur by （）.
A. heat convection through the adjacent bulkheads
B. combustion gases carried through the ventilation system
C. direct convection of the heat emitted by the adjacent fire
D. heat radiated from the dock or bulkhead by the adjacent fire
[单项选择]To determine that a compartment contains sufficient oxygen to sustain life, you should use a/an （）.
A. explosimeter
B. oxygen indicator
C. fresh air indicator
D. all of the above
[单项选择]Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）
A. There shall be at least 3 ventilator ducts open to the atmosphere
B. At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge
C. At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge
D. Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartments
[单项选择]The disinfection of various compartment in a vesel by filling them with a gaseous agents to destroy rats ect.means（）.
A. fire drills
B. washing and cleaning
C. fumigation
D. quarantine
[单项选择]Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
A. closing the compartment except for the ventilators
B. completely closing the compartment
C. leaving the compartment open to the air
D. increasing the air flow to the compartment by blowers
[单项选择]The stability which remains after a compartment is flooded is called（）.
A. intact stability
B. initial stability
C. immersion stability
D. damage stability
[单项选择]The blower type crankcase ventilation system （）
A. removes combustible gases in the crankcase
B. prevents the formation of combustible gases in the crankcase
C. cools lubricating oil
D. improves cold weather starting
[单项选择]A diesel engine crankcase ventilation system （）
A. prevents spark generation
B. removes combustible gases
C. determines the level of combustible gases
D. provides inert gas generation in crankcase
[单项选择]Flooding of any compartment in a ship that results in a serious loss of reserve buoyancy will always（）.
A. increase the trim
B. increase ship stability
C. cause a serious list
D. decrease the heeling moment
[单项选择]A vessel is described as a two compartment vessel when it（）.
A. has no more than two compartments
B. has two compartments in addition to the engine room
C. will sink if any two compartments are flooded
D. will float if any two adjacent compartments are flooded
