If the coolant temperature of a closed cooling water system for a diesel engine gradually increases, the trouble usually is （） -题库考试答案搜索网

If the coolant temperature of a closed cooling water system for a diesel engine gradually increases, the trouble usually is （）

单选题

2022-11-03 21:06

A、a broken shaft on the freshwater pump
B、an excessive accumulation of scale exchanger
C、an incorrect thermostatic element operating range
D、lube oil in the cooling water

查看答案

正确答案

B

试题解析

标签：船舶电气与船舶安全

感兴趣题目

A cargo hold has been determined to have a relative humidity of 80% and a dry bulb temperature of 80 ℃ and a dry bulb temperature of 85℃.When the hold is sealed and the dry bulb temperature decreases, the relative humidity in the space will （）

The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）

The flash point of a liquid refers to the temperature （）

If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）

（） is the circulation and refreshing of the air in a space without necessarily a change of temperature.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

船长应负责保管的船舶安全管理方面的证书有（）。 Ⅰ．符合证明； Ⅱ．符合证明的副本； Ⅲ．船舶安全管理证书； Ⅳ．船舶安全管理证书的副本。

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.

If the coolant temperature of a closed cooling water system for a diesel engine gradually increases, the trouble usually is （）

If the coolant temperature of a closed cooling water system for a diesel enginegradually increases, the trouble usually is( ).

A公司与B公司签订《船舶转让协议》，约定A公司将船舶转让给B公司，转让价格为XX万元B公司交押金X万元，以后每月支付船价及利息X万元，如两个月内不付转让费，A公司有权收回船舶由B公司负责办理船舶营运手续B公司中途无故退回船舶，已付的转让费不再退回，等等。B公司经营船舶一年后，以A公司提供的船舶陈旧，操纵性能差等为由，向A公司提出终止船舶转让协议。A公司欲协商，但协商不成，A公司收回船舶国籍证书，船舶技术证书及营运证书。该协议属海商法范围内的何种合同？该协议是否有效

相关题目: 为了保证船舶航行安全，首先要确定船舶的航向与位置。船舶定位方法按照参照目标可分为（　）。; 船舶防火控制图集中反映了船舶消防、救生设备的安全技术性能，是保障船舶营运安全的重要性图纸。; 根据我国现行船舶最低安全配员规则，下列叙述正确的是：（）I、船舶安全配员标准是船舶配备船员的最低要求；II、中外国籍船舶都应持有海事管理机构颁发的《船舶最低安全配员证书》；III、海事管理机构如认为配员减免后无法保证船舶安全时，可不予减免或者不予足额减免；IV、船舶在航行、停泊、作业时，必须将《船舶最低安全配员证书》妥善存放在船备查; 下列关于船舶安全检查的说法中，正确的是（）。
Ⅰ、船舶接受安全检查时，陪同检查的船员引导检查人员即可
Ⅱ、船舶接受安全检查时，陪同检查的船员应按检查人员要求，调试、操纵有关设备
Ⅲ、中国籍船舶接受安全检查时出示船舶安全检查记录簿; If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.; If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to_______the engine; If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.; If an auxiliary diesel engine coolant temperature is higher than normal, but the thermostat is determined not to be defective, you would suspect a/an; If you observe more closely, Margaret is（）of the two girls.; If he is a common carrier，he is absolutely responsible to the owner of the goods carried （）any loss or damage to them unless caused by an Act of God or the Queen’s enemies，or the inherent vice in the goods themselves，or the negligence of the owner of the goods，or a general average sacrifice.; The temperature of a refrigerant gas is the highest （）.; Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?（）; During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.; If the capacity of the refrigeration compressor is too large, the saturation temperature will （）.; Which of the following best represents the order from a harsh command to a very polite request? a. Could you close the door? b. Close the door. c.Please close the door. d. Would you please close the door?; When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.; If the engine is naturally aspirated, or is a small high-speed type with a centrifugal turbocharger, the period of valve overlap（）,ie when both valves are（）, will be and the exhaust valve will close some 10°top dead canter（）.; The amount of moisture in a given sample of air, when compared with the amount of moisture the air could hold if totally saturated at the existing temperature of the sample, is called （）.; If the compressor-discharge temperature is higher than the receiver temperature（）; If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）

广告位招租WX:84302438

题库考试答案搜索网

免费的网站请分享给朋友吧