【单项选择题】 On a hydrocarbon flammability chart the line which exten...
【单项选择题】 If,during helicopter refueling operations,fuel is spilled...
【单项选择题】 Each part of the fire-main system located on an expose...
【单项选择题】 Each hose in the fuel transfer system for helicopter re...
【单项选择题】 Each hand portable fire extinguisher must be marked with...
【单项选择题】 Each fireman’s outfit and its spare equipment on a ves...
【单项选择题】 Each fire pump on a ship must have a pressure gauge l...
【单项选择题】 Each fire hydrant serving machinery spaces containing oil...
【单项选择题】 Each fire hydrant must have at least one spanner and a...
【单项选择题】 Each fire hose coupling on a ship must have threads th...
【单项选择题】 During the required periodic abandon ship drill aboard a...
【单项选择题】 During a training exercise a submarine indicating that a...
【单项选择题】 During a fire drill on a ship,what action is required...
【单项选择题】 Due to the hazards involved with Halon extinguishers on...
【单项选择题】 Dry chemical fire extinguishers are effective on which t...
【单项选择题】 Dry chemical extinguishers extinguish class B fires to t...
【单项选择题】 Convection spreads a fire by().
【单项选择题】 Controls for a fixed carbon dioxide system shall be mou...
【单项选择题】 Control of flooding should be addressed().
【单项选择题】 Control of fire on a ship should be addressed().
【单项选择题】 Combustible gas indicators measure the presence of combus...
【单项选择题】 CO2 extinguishes a fire by().
【单项选择题】 Cargo transfer operations on a tanker need NOT be stopp...
【单项选择题】 Blocking open or removing fire dampers can cause().
【单项选择题】 Before using a fixed CO2 system to fight an engine ro...
【单项选择题】 Before a tank is to be crude oil washed,the oxygen co...
【单项选择题】 Backfire flame arrestors are installed on().
【单项选择题】 Automatic fire dampers in ventilation systems are operate...
【单项选择题】 Automatic fire dampers in ventilation systems are operate...
【单项选择题】 According to the T-Boat regulations the reason for prov...
【单项选择题】 A fire starting by spontaneous combustion can be expecte...
【单项选择题】 A fire pump may be used for other purposes if().
【单项选择题】 A fire must be ventilated().
【单项选择题】 A fire main system must have enough fire hydrants so t...
【单项选择题】 A fire is discovered in the forepeak of a vessel at s...
【单项选择题】 A fire in electrical equipment should be extinguished by...
【单项选择题】 A fire in a ballast pumproom can be brought under cont...
【单项选择题】 A fire hose has a().
【单项选择题】 A fire has broken out on the stern of your vessel. Y...
【单项选择题】 A definite advantage of using water as a fire extinguis...
【单项选择题】 A cutoff valve in the fire-main system of a ship may...
【单项选择题】 A combustible gas indicator meter is calibrated to read...
【单项选择题】 A class C fire would be burning().
【单项选择题】 A class B fire is most successfully fought by().
【单项选择题】 A Certificate of Inspection issued to a small passenger...
【单项选择题】 A carburetor is required to have a safety device called...
【单项选择题】 A carbon dioxide fire extinguisher should be recharged(...
【单项选择题】 The emergency signal for fires is sounded on the ship’...
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