A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the （）.

[单选题]The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.A . principleB . principalC . causeD . case

[单选题]（ ） coverage is the most widely used in the transportof marine cargo becaus

[单选题]（ ） coverage is the most widely used in the transportof marine cargo becaus

[单选题]The desirable properties of a marine fuel oil should include .A．high flash point and high viscosityB．low flash point and high viscosityC．low heating value and high sulphur contentD．high heating value and low sulphur content

[单选题]The desirable properties or a marine fuel oil should include_______.A．high flash point and high viscosityB．low flash point and high viscosityC．low heating value and high sulphur contentD．high heating value and low sulphur content

[单选题]Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.A . respectableB . respectfulC . respectiveD . respectively

[名词解释] 喋喋不休dié dié bù xiū

[名词解释] 沉甸甸chén diàn diàn

[试题]The wrong Marine proved, in a very human way, that there are people who ______.

[单选题]E．ach cylinder liner on the marine medium speed engines _____.A．is usually cooled by sea waterB．can be replaced when worn outC．is in direct contact with the water in the bore of the cylinderD．can t expand when heated