chemical ignition
spontaneous combustion
chemical combustion
radiation ignition
第1题：
occurs when a series of synchronization objects we held in a preemptive system inSuch a way that no process can move forwar
A.Spin Lock
B.Mutex
C.Deadlock
D.Schedule
第2题：
The fire extinguishing action of CO 2 comes mostly from ______.
A.breaking the fire chemical chain reaction
B.smothering
C.cooling
D.isolating the heat from the fuel
第3题：
A.become into
B.grow up
C.be changed into
D.be covered with
第4题：
第5题：
When cleaning a tank by the Butterworth process，you should begin to pump out the slops ______．
A.At the end of the drop schedule
B.When the process is started
C.When the process is finished
D.When the tank is clean
第6题：
Which of the following is (are)an advantage of a dry chemical extinguisher over a carbon dioxide extinguisher？The dry chemical extinguisher：Ⅰ．Has a greater range．Ⅱ．Provides a heat shield for the operator．
A.Ⅰonly
B.Ⅱonly
C.Both Ⅰand Ⅱ
D.Neither Ⅰ nor Ⅱ
第7题：
Spontaneous combustion is caused by ______．
A.An outside heat source heating a substance until it ignites
B.Conduction of heat through a wall of material to the substance
C.Chemical action within a substance
D.All of the above
第8题：
According to the passage, which of the following statement is not true?
A.the heat exchanging surfaces should be kept substantially clean
B.the heat exchanger flow passages should be clear of obstruction
C.seals for the plate heat exchanger needs to be renewed often
D.the cleaning process of the plate heat exchanger should be done following our experiences only
第9题：
A portable dry chemical fire extinguisher discharges by ______.
A.gravity when the extinguisher is turned upside down
B.pressure from a small CO2 cartridge on the extinguisher
C.air pressure from the hand pump attached to the extinguisher
D.pressure from the reaction when water is mixed with the chemical
第10题：