更多"Which of the valves listed should b"的相关试题:
[单项选择]Which of the valves listed is NOT considered to be a hydraulic system directional control valve?（）
A. Spring-centered valve
B. Unloading valve
C. Three-position valve
D. Two-position valve
[单项选择]Which material should NOT be used to secure cargo on deck for a voyage（）.
A. Steel chain
B. Wire rope
C. Steel strapping
D. Fiber rope
[单项选择]Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?（）
A. Pressure-reducing valve
B. Unloading valve
C. Counterbalance valve
D. Pressure-relief valve
[单项选择]The type of extinguisher which should be used for an electricity fire is（）.
A. foam or soda acid
B. dry chemical or foam
C. carbon dioxide or dry chemical
D. carbon dioxide or foam
[单项选择]Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Foam
D. Carbon tetrachloride
[单项选择]Which channel and mode should be used when initiating a distress alert transmission（）.
A. Channel 6 DSC
B. Channel 6 Radiotelephony
C. Channel 13 Radiotelephony and channel 16 DSC
D. Channel 70 DSC
[单项选择]Which method should be used to secure a manila line to bitts（）.
A. A round turn on the bitt farthest from the strain and then figure eights
B. A round turn on the bitt closest to the strain and then figure eights
C. Figure eights and then a round turn at the top of both bitts
D. Only figure eights are necessary on both bitts
[单项选择]Which method should be used to warm up the pump turbines prior to discharge（）.
A. Lock the turbine rotor and slowly bleed in steam until operating temperature is reached
B. Run the pump at high speed with the discharge valves closed
C. Run the turbine at slow speed with the pump disconnected
D. Shut the discharge valve and run the pump at slow speed
[单项选择]Which knot should be used to send a man over the side when he may have to use both hands（）.
A. Bowline
B. French bowline
C. Bowline on a bight
D. Running bowline
[单项选择]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
[单项选择]Corrosive liquids and acids should have which kind of label?（）
A. Skull and crossbones
B. Yellow and white
C. Red and white
D. White and black
[单项选择]（）should generally be used when handing rough or sharp objects.
A. Heat-resistant
B. Rubber gloves
C. PVC gloves
D. Leather gloves
[单项选择]Manila slings should not be used to load（）.
A. cotton
B. lumber
C. steel
D. tires
[单项选择]A tourniquet should be used to control bleeding ONLY（）.
A. with puncture wounds
B. when all other means have failed
C. when the victim is unconscious
D. to prevent bleeding from minor wounds
[单项选择]Soot blowers should be used in proper sequence so that（）
A. excess stresses will not be set up in the boiler
B. the decks will not be covered with soot
C. the soot will be swept toward the uptakes
D. there will not be a loss of steam pressure
