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Which is false about engine trials?（）
A . engine trails should be done after finishing the operation of turning the engine with the turning gear and starting the engine on air briefly
B . in the operation of engine trails, the main engine should be running in low-speed
C . As to the ship equipment with twin main engine, engine trials should be done with one engine ahead and another engine astern at the same time
D . the order “engine trials” should be given by the bridge
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Who is in charge of the main engine?（）
A . The chief engineer
B . The second engineer
C . The third engineer
D . The fourth engineer
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Which statement about the DVS engine is true？（）
A . the DVS engine can useWebroot and McAfee scanning in parallel
B . the DVS engine generates the WBRS
C . the DVS engine never inspects the client HTTP request
D . the DVS engine is only used for Layer 4 traffic monitoring
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It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.
A . the suction stroke
B . the compression stroke
C . the expansion stroke
D . the exhaust stroke
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Since the burning or combustion takes place within the engine itself, the engine is known as （）.
A . a fire -tube boiler
B . an internal combustion engine
C . an external combustion engine
D . an internal combustion generator
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Immediately after any diesel engine is started, the engineer should check the （）
A . crankcase pressure
B . lube oil pressure
C . saltwater pressure
D . exhaust temperature
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The device used to limit engine torque at various engine speeds is called a （）
A . speed limiting governor
B . variable speed governor
C . constant speed governor
D . load limiting governor
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After the engine is warned, we should（） the turning gear before starting up the engine.
A . take in
B . put in
C . take out
D . put u
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The diesel engine is a type of （）.
A、A. turbine engine
B、B. gas turbine
C、C. steam engine
D、D. internal combustion engine
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With UMS, when the engine room is unwatched （） will control the main engine.
A . the bridge officer on watch
B . the chief engineer
C . the duty engineer
D . the duty motorma
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Engine displacement is equal to the cylinder （）.
A . area times the stroke
B . area times the stroke, times the number of cylinders
C . volume times the stroke
D . volume times the stroke, times the number of cylinder
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David's younger brother is（）engineer.
A . a
B . an
C . the
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A diesel engine is similar to a gasoline engine except that the former has no （）.
A . cross-head
B . cylinder
C . connecting rod
D . spark plug
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Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine （） ahead and astern.
A . a brief trial with turning gear
B . a brief trial on power
C . a long trial by steering gear
D . one minutes trial with windla
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After an engine is started you should（）.
A . increase engine speed to insure adequate flow of oil to all parts of the engine
B . pay no attention unless there are unusual noises from the engine
C . check operating pressures and temperatures，and check for leaks
D . run the engine at idle until the temperature has increased
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Does Freud believe that a person’s development is determined by genetic factors.
A、Jung
B、Freud
C、Darwin
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The marine diesel engine is a type of diesel engine used on shipsThe _____ of its operation is not very difficult to understand.
A.principle
B.principal
C.cause
D.case
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Software engineering economy is an effective part of software engineering，which ofthe following contents is the research content of software engineering economy( )．
①estimation of software development cost
③earn & cost analysis of software development
③adjustment of software development progress
A．①only B．②and③ C．①and② D．all
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The perfect pitch ability is genetic.
A．Levitin
B．deutsch
C．Gregersen
D．Marvin
E．Freimer
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Software Engineering Economy is an effective part of software engineering, which of the following content is the research comtent of software engineering economy？
Ⅰ.Estimation of software development cost
Ⅱ.Earn & Cost analysis of software development
Ⅲ.Adjustment of software development progress
A．Ⅲ only
B．Ⅱ and Ⅲ
C．Ⅰ and Ⅱ
D．all
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The only way for evolution to take place is if there is _____ within a population. A、nonrandom mating B、natural selection C、genetic drift D、Hardy–Weinberg equilibrium E、genetic variation
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The sying ’The devil is in the detils. ’ is used to imply tht______.Estoni’s new genThe sying ’The devil is in the detils. ’ is used to imply tht______.Estoni’s new genetic dt bnk hs immorl implictions B．while the overll ide is good, the detils of the genetic bnk’s workingsre flwed C．despite their efforts, the new lws my not prevent misuse of genetic dt D．it is inherently wrong to collect genetic dt
A．Estonia’s new genetic data bank has immoral implications
B．while the overall idea is good,the details of the genetic bank’s workings are flawed
C．despite their efforts, the new laws may not prevent misuse of genetic data
D．it is inherently wrong to collect genetic data
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The old man has three sons.（) is a doctor,（) is a teacher,（)is an engineer.
A、 One / one / nother
B、 Another/ another / the other
C、 One/ another/ the other
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The genetic mteirl in the nucleus of the cell is clled the ______.cytoplsmB．chromosoThe genetic mteirl in the nucleus of the cell is clled the ______.cytoplsm B．chromosome C．chromtion D．gene
A．cytoplasm
B．chromosome
C．chromation
D．gene
