A、welding brackets across both ends of the crack
B、chipping out and slot welding the entire crack
C、drilling a hole at each end of the crack
D、cutting a square notch at each end of the crack
更多“The lengthening of a crack formed in the shell plating of a ship may be prevented by （）.”相关的问题
A、diminishing the height of the seas B、lengthening the distance between successive crests C、increasing the height of the seas D、preventing the wave crests from breaking
A、Serves as a backup for the main tow hawser in case of failure B、Provides weight and flexibility to the total tow makeup C、Lengthens the main tow hawser to keep the tow in step D、Distributes the towing load
A、shorten the hawser or increase the tug's speed B、lengthen the hawser or reduce the tug's speed C、place your tug in irons D、make a sharp turn
A、When heated, it will move proportional to the amount the metal has lengthened or expanded B、The pointer associated with the pyrometer scale can be made to also measure engine RPM C、It can be utilized in exhaust manifolds and heat exchangers interchangeably D、It can indicate temperature at a distant point from the source heat
A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
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