更多"Flames from small leaks of LFG may "的相关试题:
[单项选择]Small hull leaks can be temporarily repaired by().
A. parcelling
B. parbuckling
C. caulking
D. seizing
[单项选择]The amount of LFG that may be loaded into a given tank is determined by().
A. checking the loading sheet
B. loading to within 1 percent of outage
C. loading to within 10 percent of the safety relief valve setting
D. filling to the maximum level indicated on the liquid level gaging device
[单项选择]Bleeding from a vein may be ordinarily controlled by().
A. applying direct pressure to the wound
B. heavy application of a disinfectant
C. pouring ice water directly onto the wound
D. pinching the wound closed
[单项选择]Distilled water from an evaporator may be discharged into a potable water tank ().
A. through a detachable hose connection
B. after passing through an activated charcoal filter
C. after chemical analysis shows it is fit for consumption
D. through a solenoid operated three-way valve
[单项选择]()fashion differs from country to country may reflect the cultural differences from one aspect
A. What
B. That
C. This
D. Which
[填空题]Phonological rules may move phonemes from one place in the string to another. For example, Modern English verb ask was Old English askian, with the /k/preceding the/s/.Sound change as a result of sound movement is known as m().
[单项选择]Generally,the first action in extinguishing an LFG fire caused by escaping gas is to().
A. sweep flames away with water spray
B. shut off the leak
C. use a chemical foam fire extinguisher
D. call the local fire department
[单项选择]LFG tank and pipeline maintenance should include().
A. exclusion of all sand and solid matter
B. cleaning with clean fresh or sea water
C. examination for fractures and pitting
D. All of the above
[单项选择]Small oil spills on deck can be prevented from contaminating any waters by ().
A. plugging all scuppers and drains
B. placing floating booms around the ship
C. regularly emptying all drip pans
D. thoroughly draining all bunkering hoses
[单项选择]A yellow signal floating in the air from a small parachute,about 300 feet above the water,would indicate that a submarine().
A. has fired a torpedo during a drill
B. is about to rise to periscope depth
C. is on the bottom in distress
D. is disabled and unable to surface
[单项选择]Low compression of diesel engine may result from ()
A. a worn cylinder
B. broken piston rings
C. any of A and B
D. none of the above
[单项选择]Cracks may be prevented from developing at the corners of welded plating inserts by().
A. squaring the corners
B. rounding the corners
C. plug welding the corners
D. slot welding the corners
[单项选择]Waste oil from the lube oil sumps of machinery may NOT be ().
A. drained into the vessels bilges
B. reclaimed for other uses
C. held in a slop tank
D. purified and then reused
[单项选择]The rules state that vessels may depart from the requirements of the Rules when().
A. there are no other vessels around
B. operating in a narrow channel
C. the Master enters it in the ship's log
D. necessary to avoid immediate danger
[单项选择]The Rules state that vessels may depart from the Rules when().
A. there are other vessels in the vicinity
B. operating in a traffic separation scheme
C. engaged in a situation involving more than two vessels
D. necessary to avoid immediate danger
[单项选择]Upon release to the atmosphere,LFG readily().
A. vaporizes
B. attacks caustically
C. rises
D. attacks corrosively
[单项选择]Cracks in cylinder and cylinder covers may () from unequal heating.
A. make
B. cause
C. result
D. produce
[单项选择]Water fog from an all-purpose nozzle may be used to().
A. fight an electrical fire
B. fight a magnesium fire
C. eliminate smoke from a compartment
D. All of the above