更多"A pumproom is suspected of accumula"的相关试题:
[单项选择]A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases?（）.
A. In the lower level of the pumproom
B. In the middle level of the pumproom
C. In the upper level of the pumproom
D. On the deck outside the pumproom
[单项选择]Fighting a rig fire in the ballast pumproom with hoses would adversely affect the stability of the rig most by（）.
A. increasing the permeability of the pumproom
B. reduction of drill water from the storage tanks
C. a list caused by water filling the compartment
D. a reduced KG caused by water filling the compartment
[单项选择]A fire in a ballast pumproom can be brought under control with minimal impact on stability by（）.
A. cooling the outside bulkheads with water
B. shutting all sources of air into the compartment
C. closing the sea chest
D. flooding the compartment with salt water
[单项选择]Access to a cargo pumproom on a tanker carrying grades A，B，C or D liquid cargoes shall be（）.
A. at least 13.1 feet away from the galleys，living quarters or navigation spaces
B. from the open deck
C. only from areas equipped with power ventilation systems
D. isolated from any part of the vessel which normally contains sources of vapor ignition
[单项选择]Access to a cargo pumproom on a tank vessel carrying grades A，B，C or D liquid cargoes shall be（）.
A. at least 13.1 feet away from the galleys，living quarters or navigation spaces
B. from the open deck
C. only from areas equipped with power ventilation systems
D. isolated from any part of the vessel which normally contains sources of vapor ignition
[单项选择]Engine coolant accumulating in the diesel engine lubricating oil can result from a （）
A. low oil pressure
B. high coolant pressure
C. leaking fuel injector
D. cracked cylinder head or liner
[单项选择]Lube oil accumulating in the cooling water system of a diesel engine will result in （）
A. lube cooler failure
B. poor heat transfer
C. mechanical lubricator failure
D. camshaft seizure
[单项选择]— What a lovely day! Why not go swimming this afternoon? —（）
A. Because it’s raining.
B. Have a good time!
C. Why do you go swimming?
D. It sounds nice!
[单项选择]Water accumulating in the crankcase of a diesel engine could indicate（）
A. a cracked cylinder liner
B. excessive water in the fuel
C. a leaking intercooler
D. excessive moisture in the scavenge air
[单项选择]Additional heat extraction from the exhaust gases can be effected by adding an （） section to the unit in plants.
A. air cooler
B. economizer
C. injector
D. air blower
[单项选择]Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by（）
A. natural aspiration
B. masked intake valves
C. air cells
D. scavenging air
[单项选择]Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?（）
A. Carbon dioxide
B. Carbon monoxide
C. Carbon trioxide
D. Hydrogen sulfide
[单项选择]The process to remove exhaust gases by blowing in fresh air is called （）.
A. charging
B. supercharging
C. starting
D. scavenging
[单项选择]Forcing the exhaust gases form the cylinder of an operating diesel engine with the aid of a blower is known as （）
A. scavenging
B. forced draft
C. turbo-charging
D. aspiration
[单项选择]Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by （）
A. cylinder valves
B. compression rings
C. piston skirts
D. oil rings
