Which substance might be subject to spontaneous combustion ________.
A.Coal
B.Scrap rubber
C.Leather
D.All of the above
第1题:
Fires resulting from spontaneous(自发的) combustion are usually caused by the improper disposal of______.
A.cigarette butts(烟头)
B.oily rags
C.burner torches
D.lighted matches
第2题:
Which statement is TRUE concerning the flash point of a substance ________.
A.It is lower than the ignition temperature
B.It is the temperature at which a substance will spontaneously ignite
C.It is the temperature at which a substance,when ignited,will continue to burn
D.It is the temperature at which the released vapors will fall within the explosive range
第3题:
(c) Explain the reasons for the concerns of the government of Happyland with companies such as TMC and
advise the directors of a strategy that might be considered in order to avoid being subject to any forthcoming
legislation concerning the environment. (5 marks)
第4题:
The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called ______.
A.Explosive range
B.Flash point
C.Ignition temperature
D.Combustion temperature
第5题:
Atmospheres laden with coal dust or grain dust caused by loading these cargoes ______.
A.require loading operations to be shut down until the atmosphere clears
B.are toxic to human life
C.are subject to spontaneous combustion
D.may be explosive in some concentrations
第6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7题:
______ is the most liable to spontaneous combustion.
A.Cement
B.Chinaware
C.Fish meal
D.Steel products
第8题:
A、which there continues to be intense debate
B、what continues to be intense debate
C、which continues to be intense debate
D、on which it continues to be intense debate
第9题:
You are scheduled to load a bulk shipment of steel turnings.Which statement is TRUE ________.
A.The primary hazard of this cargo is that it is subject to spontaneous heating and ignition
B.The shipping papers should describe this cargo as Waste,Steel Borings
C.After loading,you may not sail if the temperature in each hold of steel turnings exceeds 54℃
D.This cargo may not be transported in bulk unless a special permit is issued by the competent authorities
第10题:
Which molten substance is poured into the basket of a wire rope socket being fitted to the end of a wire rope ________.
A.Babbitt
B.Bronze
C.Lead
D.Zinc