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Spontaneous ignition can result from ______.
A.an unprotected drop-light bulb
B.careless disposal or storage of material
C.smoking in bed
D.worn electrical wires on power tools
参考答案
更多 “ Spontaneous ignition can result from ______.A.an unprotected drop-light bulbB.careless disposal or storage of materialC.smoking in bedD.worn electrical wires on power tools ” 相关考题
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As they access the corporate network, mobile and remote users inadvertently can infect the network with(72) and worms acquired from unprotected public networks.A．virusesB．diseaseC．germsD．sickness
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Depending on one's perspective, a financial instrument can be ______.A．an assetB．a liabilityC．either an asset or a liabilityD．none of the above
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Crankcase explosions in propulsion diesel engines result from ____.A.the splashing of lubrication oil by the crankshaftB.the dilution of crankcase oil with particles of combustionC.broken fuel lines spraying oil on the crankcaseD.the ignition of unburned fuel and air in the crankcase
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A system administrator detects thousands of open idle connections from the same source.Which problem can arise from this type of attack?()
A. It enables an attacker to perform an IP sweep of devices.B. It enables a hacker to know which operating system the system is running.C. It can overflow the session table to its limit, which can result in rejection of legitimate traffic.D. It creates a ping of death and can cause the entire network to be infected with a virus.
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A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.A.excessive purging before lighting offB.insufficient trail for ignition periodC.a faulty transformer in the ignition circuitD.insufficient purging before lighting off
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Spontaneous combustion is caused by ______．A.An outside heat source heating a substance until it ignitesB.Conduction of heat through a wall of material to the substanceC.Chemical action within a substanceD.All of the above
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As they access the corporate network, mobile and remote users inadvertently can infect the network with （ ）and worms acquired from unprotected public networks.A. sickness
B. disease
C. Germs
D. Viruses
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Which statements are true regarding the Query Result Cache? （）A、It can be set at the system, session, or table level.B、It is used only across statements in the same session.C、It can store the results from normal as well as flashback queries.D、It can store the results of queries based on normal, temporary, and dictionary tables.
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单选题A diesel engine cylinder head can crack as a result of （）A
a leaking seal ringB
heat transfer from exhaust valvesC
restricted cooling passagesD
overheated intake valves
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单选题Combustion knock will most likely occur as a result of using a fuel with（）A
low ignition qualityB
a high volatilityC
low ignition delayD
a high cetane number
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单选题Excessive lube oil consumption can result from worn or broken（）A
piston ringsB
valve guidesC
valve sealsD
all of the above
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单选题Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）A
starting the engine while hotB
knurling the piston skirtC
operating the engine overheatedD
scuff resistant piston rings
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单选题White smoke exhausting from a diesel engine can result from （）A
high exhaust temperatureB
high lube oil temperatureC
low turbo-charger speedD
low cooling water temperature
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单选题Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）A
chromium plating piston ringsB
knurling the piston skirtC
extended maximum power operationD
applying load to a cold diesel engine
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单选题A system administrator detects thousands of open idle connections from the same source.Which problem can arise from this type of attack?（）A
It enables an attacker to perform an IP sweep of devices.B
It enables a hacker to know which operating system the system is running.C
It can overflow the session table to its limit, which can result in rejection of legitimate traffic.D
It creates a ping of death and can cause the entire network to be infected with a virus.
考题
单选题Spontaneous ignition can result from（）.A
an unprotected drop-light bulbB
careless disposal or storage of materialC
smoking in bedD
worn electrical wires on power tools
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单选题Combustible material stored in a compartment adjacent to a compartment where there is a fire may be ignitedThis ignition can occur by （）.A
heat convection through the adjacent bulkheadsB
combustion gases carried through the ventilation systemC
direct convection of the heat emitted by the adjacent fireD
heat radiated from the dock or bulkhead by the adjacent fire
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多选题Which two of statements are true？（）AIt is possible to synchronize static methods.BWhen a thread has yielded as a result of yield（）， it releases its locks.CWhen a thread is sleeping as a result of sleep（）， it releases its locks.DThe Object.wait（） method can be invoked only from a synchronized context.EThe Thread.sleep（） method can be invoked only from a synchronized context.FWhen the thread scheduler receives a notify（） request， and notifies a thread， that thread immediately releases its lock.
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单选题A firebox explosion in an automatically fired auxiliary boiler may be the result of （）A
excessive purging before lighting offB
insufficient trail for ignition periodC
a faulty transformer in the ignition circuitD
insufficient purging before lighting off
考题
单选题Crankcase explosions in propulsion diesel result from（）A
the splashing of lubrication oil by the crankshaftB
the dilution of crankcase oil with particles of combustionC
broken fuel lines spraying oil on the crankcaseD
the ignition of unburned fuel and air in the crankcase
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单选题We can conclude from the last paragraph that______.A
trade winds are harmful to the low clouds.B
deep clouds are helpful to cool the earth.C
global warming can result in more low clouds.D
global warming can destroy the form of atmosphere.
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多选题Which two statements regarding the IS-IS DIS election process are true？ （）AA priority of 0 will prevent a router from becoming a DIS.BIf the DIS becomes unavailable the backup DIS is promoted to DIS.CAdding a router with a higher priority than the current DIS will result in the new router becoming DIS.DSeparate L1 and L2 election processes are held on a brodcast network.EL1 routers on a broadcast network only establish adjacencies with the DIS.FIf there is a tie based on priority，the router whose attached interface has the lowest MAC address becomes the DIS.
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单选题Combustion knock occurring in a diesel engine can be caused by （）.A
excessive fuel penetrationB
prolonged injection lagC
reduced ignition lagD
prolonged ignition lag
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单选题Engine coolant accumulating in the diesel engine lubricating oil can result from a （）A
low oil pressureB
high coolant pressureC
leaking fuel injectorD
cracked cylinder head or liner
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单选题High cylinder firing pressure, accompanied by low exhaust temperature, can result from （）A
improper fuel rack positingB
lengthy exhaust valve durationC
extend operation at light loadD
excessively early injection timing
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单选题From the passage we can infer that.A
experiments are more or less significant for researches concernedB
the successful experiments result from perfect scientific meansC
human cases are more effective in observing the brain activityD
the result of scientific research should be set aside for a period of time before it’s applied
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单选题The rate of pressure rise during the period following fuel ignition in a diesel will result in （）A
valve overlapB
volumetric efficiencyC
turbulence of the air changeD
fuel efficiency
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