On the approach of a warm front the ba

1、Early indications of the approach of a

Early indications of the approach of a hurricane may be all of the following EXCEPT（）.Ashort confused swellsBgradually increasing white clouds (mare's tails)Cpumping barometerDcontinuous fine mist-like rai

2、On a clear，warm day，you notice the app

On a clear，warm day，you notice the approach of a tall cumulus cloud. The cloud top has hard well defined edges and rain is falling from th...

3、The purpose of the tripping line on a

The purpose of the tripping line on a sea anchor is to（）.AAid in casting offBDirect the drift of the vesselCAid in its recoveryDMaintain maximum resistance to broaching

4、The valve on the discharge side of a c

The valve on the discharge side of a cargo pump on a tanker will usually be a（）.Abutterfly valveBspectacle valveCcheck valveDglobe valve

5、As it approaches，a typical warm front

As it approaches，a typical warm front will bring（）.Arising temperatures and falling barometric pressureBfalling temperature and pressureCfalling temperatures and rising pressureDrising barometric pressure and temperature

6、The main purpose of warming the parts

The main purpose of warming the parts of the main engine is （）Ato reduce heat stressBto reduce low temperature corrosionCto improve firing and starting performanceDfuel saving