In a large, slow-speed, main propulsio

1、A large, low-speed, crosshead, main pr

A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a （）Alow TBN valueBhigh alkaline reserveClow flash pointDhigh pour point

2、（）all ships in a large sea area being

（）all ships in a large sea area being alerted, an “area call” will normally be transmitted so that only those ships in the vicinity of the distress incident are alerted.AAvoidingBTo be avoidedCAvoidedDTo avoid

3、When running a large, low-speed, main

When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switchi...

4、In large, low-speed, main propulsion d

In large, low-speed, main propulsion diesel engine, position ring groove wear usually occurs at the（）Atop of the ring grooveBback of the ring grooveCbottom of the ring grooveDpiston ring end clearance

5、In the daytime，you see a large sailing

In the daytime，you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows（）.Aa basketBa black ballCa black coneDtwo black cone

6、In most cases，when a large merchant ve

In most cases，when a large merchant vessel enters shallow water at high speed the（）.Amaneuverability will increaseBspeed will increaseCbow will squat farther than the sternDvessel will rise slightly，on a level plane