首页/ 题库 / [单选题]The mechanical effic的答案

The mechanical efficiency of an engine is always less than 100% () losses occurring in the form friction.

单选题
2022-08-11 00:29
A、because
B、since
C、due to
D、owing to
查看答案

正确答案
C

试题解析

感兴趣题目
The Services-Ready Engine is an optional module of the Cisco ISR family. It includes onboard CPU and memory to run advanced applications. Which of these is an example of an advanced application that runs on the Services-Ready Engine?()
Through a () pump, the liquid is transferred from the suction to the discharge by the mechanical variation of the volume of a chamber or chambers.
What is the function of an engine’s stationary parts?()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
Which of the engine components listed increases air charge density and helps to improve engine operating efficiency?()
Software Engineering Economy is an effective part of software engineering.Which of the following content is the research content of software engineering economy?Ⅰ.Estimation of software development costⅡ.Earn & Cost analysis of software developmentⅢ.Adjustment of software development progress
Software engineering is the study and an application of engineering to the design, development ,and ( ) of software
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。
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm ().
The mechanical efficiency of an engine () because losses occur in the form of friction.
The mechanical efficiency of an engine is always less than 100% () losses occurring in the form friction.
Which of the listed characteristics of lube oil are the most important to the engineer from an operational standpoint?()
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

Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?()
In reducing engine speed to an efficient propeller speed by the use of reduction gears, _______.
The essential part of the diesel engine, whose function is to convert the heat energy into the mechanical power, is the ().
Software engineers apply the principles of software engineering to the design, development, ( ),testing, and evaluation of the software and systems that make computers or anything containing software work.
The indicated power of an engine can be obtained by taking the ().
The quantity of cooled air delivered by an air conditioning unit should () the sum of the quantity of air re-circulated to the unit and the quantity mechanically exhausted.
The trouble-free life of an engine indicates ().
The fitting of an efficient radar reflector is likely to considerably increase the ship’s probability of().
The overspeeding of the diesel engine driving an electric generator could cause ().
The primary duty of lube oil is to reduce () between the working parts of an engine.
Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially ().
Mechanical gearing of deck machinery such as the windlass or boat hoists should().
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with()
The efficient burning of fuel in a diesel engine is dependent upon the ()
Charging is the filling of the engine cylinder with a supply or charge of fresh air () compression.
The Services-Ready Engine is an optional module of the Cisco ISR family. It includes onboard CPU and memory to run advanced applications. Which of these is an example of an advanced application that runs on the Services-Ready Engine?()
广告位招租WX:84302438

免费的网站请分享给朋友吧