更多"Before the oily water is installed "的相关试题:
[单项选择]The main causes of fire on board ships are ()
A. oil leakage in engine-room
B. hot work (welding, cutting, etc)
C. static electricity
D. all of the above
[单项选择]Place names used on board ships should be those ().
A. specified by international authorities
B. specified by national authorities
C. on standard map
D. on the chart or Sailing Directions in use
[单项选择]After stopping oily water separator, sea water should be permitted for () minutes,()should be closed after stopping pump to reduce oxidation corrosion of inner wall.
A. 15;inlet value
B. 15;inlet and outlet value
C. 30;inlet value
D. 30;inlet and outlet value
[单项选择]Before the oily water separator put into operation, it should be ()
A. filled with bilge water
B. filled with oil
C. filled with clean water
D. be emptied
[单项选择]When started, a complete oily water separating unit is first filled ()The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.
A. with dirty water
B. with clean water
C. by oily water
D. by mixed water
[单项选择]When oily water separator is operating, which measure () is wrong.
A. pay attention to operating parameters
B. renew and clean separating units in time
C. check oil level in separator to prevent overload
D. check separating effect, if it is bad, flush with large capacity water pump
[单项选择]The most suitable pump for oily water separator feed duties is ().
A. a reciprocating pump
B. a vane pump
C. a centrifugal pump
D. a triple screw pump
[单项选择]What’s the advantage of oily water separator that meets the requirement of MEPC 60(33) over MEPC 107(49)?()
A. more economic
B. larger capacity on oil treatment
C. less costive
D. more capable of separating emulsified oil
[单项选择]Oily water separator mis-alarms, the most possible reason is ()
A. separating oil too fast
B. the sensor flushed badly
C. the discharge solenoid value out of order
D. too low heating temperature
[单项选择]The ()is fitted on an oily water separator.
A. sliding bowl bottom
B. gravity disc
C. bowl
D. liquid level detector
[单项选择]In an oily water separator the oil will travel () to the oil collecting spaces.
A. upwards
B. downwards
C. outwards
D. forwards
[单项选择]Here some oil in the oily water separator, as a result of its lower (), will separate and rise into the oil collection space.
A. temperature
B. viscosity
C. density
D. velocity
[单项选择]How many PPM of the oily water can be pumped out within 12 miles along the China coast line?().
A. at least 15 PPM
B. about 15 PPM
C. up to 15 PPM
D. no less than 15 PPM
[单项选择]Placing a filter on the () of an oily water separator will "polish" the discharge but overloading must be avoided.
A. suction side
B. discharge side
C. by-pass pipe
D. sampling pipe
[单项选择]Oil water separators are used to ensure that ships dont discharge oil when pumping out ().
A. ballast water
B. boiler water
C. bilge water
D. sewage water
[单项选择]Ships are always()on water and they are easy to rust.
A. float
B. floating
C. floats
D. floated
[单项选择]All ships()suspected infectious disease on board should radio information to Port Health Officer.
A. with
B. has
C. have
D. had