更多"[单选题] ______________should start th"的相关试题:
[单选题] Portable CO2 fire extinguishers should not be used to inert a space containing flammable liquids due to the danger of ______.
A. the CO2 being inhaled by personnel
B. reflash of burning liquids
C. vapor condensation on the extinguisher
D. the discharge causing a static spark
[单选题] Fire drills should be carried out _____________.
A. at the same location but in different conditions
B. at the same location but with different types of fire
C. at different locations and in different conditions
D. at different locations in different conditions and with different types of fire
[单选题] ___________________ should know how to start and operate the emergency pump.
A. The fire party members
B. The emergency party members
C. All the crew members
D. All the officers and engineers
[单选题]Reciprocating pumps are suitable for delivering
A.small quantities at high pressure
B.large quantities at high pressure
C.moderate quantities at moderate pressure
D.large quantities at low pressure
[单选题]In general,reciprocating pumps arefor delivering small quantities at high pressure.
A.able
B.enabled
C.suitable
D.capable
[单选题]Displacement pumps are those the volume of the pump chamber is alternately increased to draw the liquid in from the suction pipe.
A.that
B.where
C.when
D.which
[单选题]Centrifugal pumps can be designed with a number of impellers to attain a high final delivery pressure.
A.in parallel
B.in series
C.in bank
D.in line
[单选题] Centrifugal pumps have what advantage（s）over reciprocating pumps ________．
A.They are less expensive
B.They are smaller for equivalent pumping ability
C.They pump more cargo in less time
D.All of the above
[单选题]Of the following pumps, ___works by means of changing the chamber volume.
A.centrifugal pump
B.ejector pump
C.reciprocating pump
D.axial-flow pump
[单选题]If the engine fails the first start,new start attemptsautomatically after an interval of about 6 seconds.
A.will take place
B.will be taken place
C.take place
D.takes place
[单选题] Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge ______.
A. only when fully loaded
B. if one or more tanks are full
C. when transferring cargo
D. only when the barge is being towed
[单选题]The certificate of fire extinguishing will expire soon,you'd better extend its
A.life
B.qualification
C.limit
D.validation
[单选题] Portable foam type fire extinguishers are most effective on ______.
A. mattress fires
B. oil fires
C. wood fires
D. All of the above
[单选题] Which types of portable fire extinguishers are designed for use on electrical fires ________．
A.Dry chemical and carbon dioxide
B.Foam（stored pressure）and soda-acid
C.Carbon dioxide and foam（stored pressure）
D.Dry chemical and soda-acid
[单选题]启动成功后，启动活门（ ） after start succeed,the starting valve will:
A.EEC控制自动关闭 be closed by EEC control
B.只在自动方式由EEC控制自动关闭 just only auto mode,EEC control to close.
C.人工启动时只能人工关闭 . at manual start,be closed manually
[单选题] To determine the number of portable fire extinguishers required on an inspected vessel，you should check the ______．
A.Hot work permit
B.Certificate of Inspection
C.Safety of Life at Sea Certificate
D.Muster List
[单选题] When fighting a fire in a space containing an IMO class 1 hazardous cargo，the most effective fire fighting procedure is to ______．
A.shut down the ventilation and exclude all air to smother the fire
B.use water from fire hoses or a sprinkler system
C.activate the fixed CO2 firefighting system
D.use high-expansion foam
[单选题] The ventilation system of your ship has fire dampers restrained by fusible links．Which statement is TRUE ________．
A.Fusible links must be replaced if a damper is activated
B.Fusible links are tested by applying a source of heat to them
C.Fusible links must be replaced at every inspection for certification
D.A fusible link will automatically open after a fire is extinguished and reset the damper
