Out of the many hazards that can occur

1、The term that indicates how many tons

The term that indicates how many tons of cargo a vessel can carry is（）.Abale cubicBdeadweightCgross tonnageDloaded displacement

2、The process that occurs when heat is g

The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as （）.Achemical ignitionBspontaneous combustionCchemical combustionDradiation ignitio

3、The type of fog that occurs on clear n

The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as（）.ARadiation fogBFrontal fogCConvection fogDAdvection fog

4、The smallest size of flaw that can be

The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.Afilm speedBpenetrometerCexposure readingDtime of exposure

5、Combustion knock can occur in the cyli

Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.Aa shortened ignition delay periodBa lean fuel/air mixtureCexcess fuel in the combustion chamberDrapid vaporization of injected fuel droplet

6、A major health hazard of the product t

A major health hazard of the product tert-butylamine is that it （）.Acan be absorbed through the skinBcauses irreversible damage to eye tissueCis a very unstable productDAll of the above