更多"Acid solution（） in the system can b"的相关试题:
[单项选择]These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be（）
A. contaminated
B. emulsified
C. deteriorated
D. oxidated
[单项选择]When to remove scale from the cooling spaces, acid solution （） in the system can be tested from time to time by putting some on to a piece of lime.
A. strength
B. dense
C. percentage
D. velocity
[单项选择]The （） can tell us how much heat we can get from the burning of an oil.
A. viscosity
B. flash point
C. cetane number
D. calorific value
[单项选择]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
[单项选择]Excessive lube oil consumption can result from worn or broken（）
A. piston rings
B. valve guides
C. valve seals
D. all of the above
[单项选择]White smoke exhausting from a diesel engine can be caused by （）
A. low combustion temperature
B. a leaking fuel nozzle check valve
C. late fuel injection
D. plugged oil-scraper ring hole
[单项选择]White smoke exhausting from a diesel engine can result from （）
A. high exhaust temperature
B. high lube oil temperature
C. low turbo-charger speed
D. low cooling water temperature
[单项选择]A distorted spray pattern from a fuel injector can cause a diesel engine to have （）
A. higher firing pressure
B. more power output
C. lower fuel pressure
D. less power output
[单项选择]The oil pressure and flow from each bearings can be checked when（）
A. the lubricating pumps are stopped and the access doors are opened
B. the lubricating pumps are running and the access doors are opened
C. the engine is running and the access doors are closed
D. the engine is stopped and the access doors are closed
[单项选择]Black smoke coming from a boiler can be caused by （）.
A. low water level
B. low oil pressure
C. excessively high fuel pressure
D. an improper air/fuel ratio
[单项选择]A cold front moving in from the northwest can produce（）.
A. thunderstorms，hail，and then rapid clearing
B. increasing cloud cover lasting for several days
C. lengthy wet weather
D. low ceilings with thick cirrus clouds
[单项选择]Impurities from the boiler water surface can be removed through the （）.
A. safety valve
B. blow down valve
C. scum valve
D. feed check valve
[单项选择]I can hear the noise from cars（）
A. in night
B. at night
C. at evening
[单项选择]Manoeuvring information can not be obtained from（）.
A. construction plans
B. sea trials
C. calculation estimates
D. SMS procedure file
[单项选择]What can be determined about an injury from examining the condition of a victim’s pupils? （）
A. The degree of pain being suffered
B. The degree of vision impairment
C. Whether or not the brain is functioning properly
D. Whether or not the victim's blood pressure is normal
