單項(xiàng)選擇題When the incinerator is stopped, which of the following is wrong?（）

A.After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutes
B.Close auxiliary burner firstly and then close main burner
C.After stopping fuel, restoring the position of main fuel supply valve
D.Stop blower as soon as stopping supplying fuel oil


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1.單項(xiàng)選擇題Concerning the incinerator’s operation, which of the following is not correct?（）

A.Scavenging time should be more 30 seconds before igniting
B.The temperature of sludge tank is 80~100℃
C.First igniting the incinerator with diesel oil, when the temperature of health is about 600℃, the sludge oil drawn in
D.The ash can be dumped into sea when the distance is more than 3 miles from land

3.單項(xiàng)選擇題Which of the following is wrong about operation of oily water separator?（）

A.filled with clean water before operation
B.keep air cushion in oil collecting space during running
C.check oil level during running
D.clean inner separator with low pressure stream

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題The following measures can be used to improve oily water separator’s separating effect except （）

A.overhauling every two year
B.working at intervals
C.renewing filtration material
D.pumping bilge water from different layers respectively