更多"For a given exhaust gas boiler, wha"的相关试题:
[单项选择]For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
A. the temperature and flow quantity of the exhaust gas from M.E
B. the quantity of steam demanded
C. the rotary speed and the cooling water temperature of main engine
D. efficiency of M.E turbocharger
[单项选择]The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it （）
A. will be modulated in proportion
B. will be modulated in proportion and integral
C. will be modulated in proportion and differential
D. will not be modulated at all
[单项选择]Keep compartment （） as the gas given off can be dangerous.
A. well ventilated
B. well clean
C. in good order
D. more room
[单项选择]What normally helps in detecting escaping gas? （）
A. Running hand along pipe
B. Red flame
C. Odor
D. Increase the line pressure
[单项选择]What is the term given to the process of breaking up fuel oil into very fine particles for better combustion?（）
A. Settling
B. Straining
C. Spraying
D. Atomizing
[单项选择]Given the output of the Floor3 switch, what statement describes the operation of this switch（）。
A. VTP is disabled on this switch.
B. The switch can create, change, and delete VLANs.
C. The switch learns VLAN information but does not save it to NVRAM.
D. The switch can create VLANs locally but will not forward this information to other switches.
E. The switch learns VLAN information and updates the local VLAN data base in NVRAM.
[单项选择]What alarm is NOT found on an inert gas system? （）
A. Low oxygen alarm
B. Low pressure alarm
C. Scrubber high water level alarm
D. Deck seal low water alarm
[单项选择]No discharge into the sea shall contain（）in quantities or concentrations which are hazardous to the marine environment or chemicals or other substances introduced for the purpose of circumventing the conditions of discharge specified in MARPOL 73/78.
A. chemicals
B. chemicals or other substances
C. substances
D. other substances
[单项选择]Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
A. cargo pump failure
B. blower failure
C. deck seal low water level
D. low inert gas temperature
[单项选择]Hot gas defrosting uses the hot gas from （） to defrost the evaporator.
A. starting air bottles
B. diesel engines
C. boilers
D. refrigeration compressors
[单项选择]Gas masks（）.
A. should be worn while fighting a fire
B. can be used in atmospheres deficient in oxygen
C. filter contaminants from air that is to be breathed
D. may be substituted for a self-contained breathing apparatus
[单项选择]Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A. flash point
B. upper explosive limit
C. lower explosive limit
D. fire point
[单项选择]A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.
A. purifies
B. combinations
C. concentrations
D. filters
[单项选择]A marine chemist issues gas free certificates and is certified by the（）.
A. Mine Safety Appliance Association
B. American Chemical Society
C. Marine Chemists Association
D. National Fire Protection Association
[单项选择]A combustible gas indicator meter is calibrated to read the percentage of（）.
A. vapor to oxygen
B. the flammable limit concentration
C. the autoignition concentration
D. the lower explosive limit concentretion
