更多"If you observe smoke coming from th"的相关试题:
[单项选择]You notice smoke coming from an open laundry room doorway.After activating the fire alarm,which of the following would you do FIRST().
A. Attempt to determine what is burning
B. Acquire the nearest self contained breathing apparatus
C. Break out the nearest fire hose
D. Wait for the fire team to arrive and assist as directed
[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]If heavy smoke is coming from the paint locker,the first firefighting response should be to().
A. release the CO fiooding system
B. open the door to evaluate of the fire
C. enter and use a portable extinguisher
D. secure the ventilation
[单项选择]While maneuvering, you discover heavy smoke coming from the turbocharger casing, you should ()
A. check the air filter for dirt
B. check for an exhaust leak
C. check the cooling water temperature
D. notify the bridge that you are going to shut the engine down
[单项选择]If you notice smoke coming fro the crankcase exhaust fan outlet of an operating diesel engine, you would suspect()
A. a cracked cylinder liner
B. clogged intake ports
C. broken piston rings
D. a faulty head gasket
[单项选择]White smoke exhausting from an operating diesel engine may indicate ()
A. a cracked liner
B. burning lube oil
C. an overloaded engine
D. insufficient combustion air
[单项选择]Black smoke exhausting from a diesel engine indicates()
A. proper fuel injection
B. water in the fuel
C. incomplete combustion
D. burning of lube oil
[单项选择]Black smoke exhausting from an operating diesel engine is an indication of poor combustion which may be caused by ()
A. water in the fuel
B. insufficient fuel for combustion
C. clogged air intake passages
D. burning lubricating oil
[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 issuing from the exhaust of an auxiliary diesel engine valve opening ()
A. the engine is overloaded
B. the engine is cold
C. there is too much lube oil in the cylinders
D. the turbocharger is fouled
[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]I look forward to()from you.
A. heard
B. hearing
C. hears
D. hear
[单项选择]— May you succeed in the coming entrance examination. —()
A. I’m so happy!
B. No, I’m not good at studying.
C. Yes. May I succeed.
D. Thank you, the same to you.
[单项选择] A:Hello, David! I haven't heard from you for a long time. How have you been recently? B:()
A. That's ok
B. Long time no see
C. Not bad, thank you