更多"A centrifuge arranged to separate t"的相关试题:
[单项选择]A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.
A. an oily water separator
B. a purifier
C. a centrifugal compressor
D. a clarifier
[单项选择]A centrifuge of which the bowl is arranged as the upper and lower parts separate discharges the sludge（）
A. by opening the separator manually
B. by separating the lower part from the upper part automatically
C. by separating the upper part from the lower part automatically
D. continuously
[单项选择]Corrosive liquids and acids should have which kind of label?（）
A. Skull and crossbones
B. Yellow and white
C. Red and white
D. White and black
[单项选择]Small quantities of flammable liquids needed at a work site should be（）.
A. used only under the supervision and direction of a ship's officer
B. tightly capped and stowed with other tools near the job site when securing at the end of the day
C. used only when a pressurized fire hose is laid out ready for immediate use
D. in a metal container with a tight cap
[单项选择]When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be（）.
A. operated continuously while vapors may be present
B. operated intermittently to remove vapors
C. available on standby for immediate use
D. shut down if an explosive mixture is present
[单项选择]Corrosive liquids and acids should have what kind of label? （）
A. Skull and crossbones
B. Yellow
C. Red
D. White
[单项选择]Fueling activities（）waste liquids and vapor releases to air.
A. commence
B. generate
C. give
D. have
[单项选择]The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.
A. metacenter
B. center of buoyancy
C. center of flotation
D. center of gravity
[单项选择]Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?（）
A. Cargo tank ballast
B. Segregated ballast
C. Engine room bilges
D. Cargo pump room bilges
[单项选择]The separate supplies are connected in either star or delta formationThe star formation is most commonly used and requires（） slip-rings on the alternator.
A. two
B. three
C. four
D. five
[多项选择]What are two characteristics of Telnet (Choose two.)（）。
A. Itsendsdataincleartextformat.
B. ItisnolongersupportedonCisconetworkdevices.
C. ItismoresecurethanSSH
D. Itrequiresanenterpriselicenseinordertobeimplemented.
E. ItrequiresthatthedestinationdevicebeconfiguredtosupportTelnetconnections.
[单项选择]At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
A. 200
B. 300
C. 400
D. 800
[单项选择]Two-stroke engine turbocharging is achieved by two distinct methods, （） termed the constant pressure and the pulse system.
A. respectable
B. respectful
C. respective
D. respectively
[单项选择]What separate the high pressure side from the low pressure side in a refrigeration system?（）
A. Condenser and thermal expansion valve
B. King and solenoid valves
C. Compressor and thermal expansion valve
D. Condenser and solenoid valve
[单项选择]Exhaust pipes for separate diesel engines can be combined only when （）
A. space limitations prevent separately run pipes
B. the engines are small auxiliary units
C. they are arranged to prevent gas backflow to each engine
D. a waste heat boiler is installed
[单项选择]A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.
A. between；to
B. either；or
C. from；to
D. neither；nor
[单项选择]The ability of an oil to separate cleanly from an oil and water mixture is referred to as its （）.
A. precipitation number
B. neutralization number
C. pour point
D. demulsibility
[单项选择]The knot used to join two lines or two large hawsers for towing is called a（）.
A. square knot
B. carrick bend
C. sheet bend
D. bowline
[单项选择]A separate piston cooling system is used （） any contamination from piston cooling glands to the piston cooling system only.
A. to help
B. to limit
C. to protect
D. to remove
