网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）
A
the rotate speed fluctuation
B
the ventilation tube clogged
C
the main engine accelerate so fast
D
stormy waves
参考答案
参考解析
解析：
暂无解析
更多 “单选题The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）A the rotate speed fluctuationB the ventilation tube cloggedC the main engine accelerate so fastD stormy waves” 相关考题
考题
Which sport has the most expenses_________ training equipment, players' personnel equipment and uniforms?A． in place ofB． in terms ofC． by means ofD． by way of
考题
A subject_____is the mechanism of that equipment.
A、which there continues to be intense debateB、what continues to be intense debateC、which continues to be intense debateD、on which it continues to be intense debate
考题
The bearing of tailshaft sealing equipment which adopts the oil nature circulation is hot, the reason isA.the rotate speed fluctuationB.the ventilation tube cloggedC.the main engine accelerate so fastD.stormy waves
考题
A vessel casualty must be reported to the MSA in China if it involves ______.A.loss of lifeB.an injury requiring only first aidC.property damageD.loss of equipment which doesn't reduce the vessel's maneuverability
考题
In each inflatable rescue boat, what piece of equipment is provided to make quick, emergency, temporary repairs to a large hole in a raft?______.A.No equipment is providedB.Self-adhesive rubberized canvas patchesC.Glue and rubber patches.D.Several various-sized sealing clamps
考题
Which two are characteristics of the cost-containment business challenge?（）A、reducing security breachesB、using the Internet moreC、reducing upgrade chargesD、adopting new applications and services
考题
单选题In each inflatable liferaft，what equipment is provided to make quick，emergency，temporary repairs to large holes in the raft? （）A
No equipment is providedB
Glue and rubber patchesC
Several various-sized sealing clampsD
Self-adhesive rubberized canvas patches
考题
单选题In each inflatable rescue boat，what piece of equipment is provided to make quick，emergency，temporary repairs to a large hole in a raft?（）.A
No equipment is providedB
Glue and rubber patchesC
Several various-sized sealing clampsD
Self-adhesive rubberized canvas patches
考题
单选题（）is an equipment used to detect the presence of ships ,buoys,coast and many other targels and to obtain range and bearing of these targets.A
The marine sextantB
The chronometerC
The echo sounderD
The radar
考题
单选题As to the bearing, of the following, which statement is not true?（）A
ff overheat is found, the engine must be stopped for inspectionB
Much heat of the crankcase door indicates that the bearing is overheatedC
If bearing clearance is too large, knocking will be heard in the crankcaseD
If bearing clearance is too large or too small, the white metal may be melted
考题
单选题（）is used to prevent the entry of sea water to the machinery space.A
A special sealing glandB
PropellerC
TailshaftD
Sterntube bearing
考题
单选题Which of the listed bearing types is an example of a solid bearing?（）A
Piston wrist pin bushingB
turbine bearingC
Spring bearingD
Diesel engine main bearing
考题
单选题Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）A
Decreased connecting rod bearing clearanceB
Increased connecting rod bearing clearanceC
Decreased compression ratioD
Increased compression ratio
考题
单选题Which of the following items don’t belong to dock repair works?（）A
the SW outboard valvesB
the tailshaft LO stop valveC
the drain valve of the boilerD
propeller shaft sealing device
考题
单选题The main advantage of improved Simplex tailshaft seal are（）A
the good sealing performance and the simple structureB
the good sealing performance and the short life expectancyC
the good sealing performance but the short life expectancyD
the good sealing performance and the lower cost
考题
单选题Which of the following equipment is not pollution prevention equipment?（）A
oily water separatorB
sewage treatment plantC
fuel oil separatorD
incinerator
考题
单选题Setting a sealing equipment astern on the tailshaft can’t （）A
prevent the seawater from intergratingB
prevent the lube oil from running out of the outside aboardC
strengthen the intencity of the sterntubeD
prevent the mud and sand from entering the lube oil system
考题
单选题An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.A
Their bearing is almost constant，even when the true bearing of the contact changes appreciablyB
They always appear on a bearing of 90°from the true bearing of the contactC
The indirect echoes usually appear in shadow sectorsD
When plotted，their movements are usually abnormal
考题
单选题In the shafting management （） should be paid more attention. Ⅰ.f the while metal tailshaft bearing is dripping oil Ⅱ.f some area become blue during the running Ⅲ.he deformation of crankshaftA
ⅠB
ⅡC
ⅢD
Ⅱ+Ⅲ
考题
单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）A
dropping lube oil for lubrication, reducing the pollution to the seaB
setting a temporary gravity oil tank and enhanced the position properlyC
lubricating with the used lube oilD
lubricating with the fresh water and navigation in a lower speed
考题
单选题The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）A
main bearing shellsB
main bearingC
steelD
bearing metal
考题
单选题Which is the pollution prevention equipment?（）A
booster pumpB
evaporatorC
incineratorD
cooler
考题
单选题Simplex tailshaft seal equipment’s working condition is terribleThe main cause is （）A
the shafting’s vertical vibrationB
violent friction and sea water corrosiveC
friction and high temperatureD
violent friction and high temperature
考题
单选题A vessel casualty must be reported to the MSA in China if it involves（）.A
loss of lifeB
an injury requiring only first aidC
property damageD
loss of equipment which doesn't reduce the vessel's maneuverability
考题
单选题In the process of the shafting management, special attention should be paid to（）A
on the sailing, the water in the aft peak tank should be excluded as much as possibleB
the stuffing style ahead sealing shouldn’t have any water leaking outC
Simplex astern sealing shouldn’t have any oil leaking outD
Simplex ahead sealing can have some oil leaking out
考题
单选题Lubricating oil used in a diesel engine serves to（）A
reduce the wear of bearing surfacesB
cool the bearing surfacesC
assist in sealing bearing surfacesD
all of the above
考题
单选题Which of the following radar contacts will present the most immediate danger?（）.A
A vessel on the starboard bow whose bearing is changing and range is decreasingB
A vessel on the starboard bow whose bearing is steady and range is increasingC
A vessel on the port bow whose bearing is steady and range is decreasingD
A vessel on the port bow whose bearing is changing to the left and range decreasing
热门标签
最新试卷
