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
主机遥控系统中,采用增压空气限制环节是为了限制主机的()。
A
热负荷
B
加速速率
C
机械负荷
D
最高转速
参考答案
参考解析
解析:
暂无解析
更多 “单选题主机遥控系统中,采用增压空气限制环节是为了限制主机的()。A 热负荷B 加速速率C 机械负荷D 最高转速” 相关考题
考题
单选题在IMO采纳的分道通航水域,对使用分道通航制水域的船舶的要求是:() Ⅰ、在相应的通航分道内沿船舶的总流向行驶 Ⅱ、在相应的通航分道内以与船舶的总流向相同的航向行驶 Ⅲ、尽可能让开分隔线或分隔带 Ⅳ、通常在通航分道的端部驶进或驶出A
Ⅰ、Ⅱ、Ⅲ、ⅣB
Ⅰ、Ⅲ、ⅣC
Ⅰ、ⅡD
Ⅰ
考题
单选题Every vessel which is directed by these Rules to keep out of the way of another vessel shall,if the circumstances of the case admit,avoid().A
Crossing ahead of the otherB
Crossing astern of the otherC
Passing port to portD
Passing starboard to starboard
考题
单选题PSC官员在检查机器处所时,发现有明显的忽略证据应扩大调查范围,使其包括()。 Ⅰ、主辅机布置 Ⅱ、舵机布置 Ⅲ、超速分离 Ⅳ、断路器A
Ⅰ+Ⅱ+ⅣB
Ⅰ+ⅡC
Ⅰ+Ⅱ+ⅢD
Ⅰ+Ⅱ+Ⅲ+Ⅳ
考题
单选题Following the failure of one turbocharger on a large, crosshead, main propulsion diesel engine, fitted with multiple turbochargers, which of the following actions should be taken prior to further operation of the engine? ()A
Blank off the exhaust gas inlet to the damaged turbochargerB
Secure cooling and lubrication to the damaged turbochargerC
Lock the rotor of the damaged turbochargerD
All of the above
考题
单选题The emergency bilge suction or bilge injection valve is used to prevent () of the ship.A
proceedingB
overloadingC
collisionD
flooding
考题
单选题Which one of the followings might not be employed to create vacuum for flash type evaporator? ()A
high-pressure steam-driven air-ejectorB
motor-driven vacuum pumpC
water-motivated air eductorD
centrifuge pump
考题
单选题柴油机废气中的有害成分主要有()。 ①N0x; ②CO; ③HC; ④SO2; ⑤颗粒; ⑥C02。A
①+②+③+⑤+⑥B
①+②+③+④+⑤C
①+③+④+⑥D
②+④+⑤+⑥
考题
单选题高压喷油泵凸轮外形对喷油规律的影响分析正确的是()。A
凸轮外形越陡,供油速度越大,喷射延迟阶段和持续角越短B
凸轮外形越平,供油压力上升越慢,喷射延迟阶段和持续角越短C
凸轮外形越陡,供油压力上升越慢,喷射延迟阶段和持续角越长D
凸轮外形越平,供油压力上升越慢,喷射延迟角和持续角越短
考题
单选题When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should()A
increase the starting air pressureB
use a higher than normal cranking speedC
increase the fuel injection pressureD
use a fuel having a lower ignition temperature
考题
单选题对于比例带PB的错误认识是()。A
对象迟延小,时间常数大,PB宜大B
从控制系统的稳定性出发,PB宜大C
从控制系统的准确性出发,PB宜小D
当PB小于临界比例带PBK,系统将发生发散振荡
考题
单选题The Tonnage Certificate indicates().A
deadweight tonsB
displacement tonsC
net tonsD
gross tons
考题
单选题在用浮子式锅炉水位双位控制系统中,把调节板上的下面销钉从最上面的孔插在最下面的孔中,上面销钉位置不变,则系统会()。A
给水泵电机起停频繁B
下限水位下移,上限水位不变C
上、下限水位一起下移D
下限水位上移,上限水位不变
考题
单选题无线电话呼叫中,如等待时间超过(),被呼叫电台应说明原因A
一分钟B
二分钟C
五分钟D
十分钟
热门标签
最新试卷