题目内容（请给出正确答案）

[主观题]

In a medium speed diesel engine, a trunk type piston may be cooled by_______Ioil circulati

on though passages in the piston crown IIheat transfer through piston rings and liner wall

A.I only

B.II only

C.either I or II

D.neither I or II

提问人：网友rj4545 发布时间：2022-01-06

参考答案

查看官方参考答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装简答题APP，拍照搜题省时又省心！

更多“In a medium speed diesel engin…”相关的问题

第1题

The speed with which sound waves move through a medium does depend on the properties of the medium.

点击查看答案

第2题

Most medium and slow speed diesels are started by what medium？（）

A. Electric starting motors

B. Hydraulics

C. Compressed air

D. Ether

点击查看答案

第3题

The majority of medium speed and high speed marine diesel engines for main or auxiliary dr

ive operate on the _____ cycle.

A.two-stroke

B.four-stoke

C.long-stroke

D.short-stroke

点击查看答案

第4题

Most medium and slow speed diesels are started by what medium（）

A．Electric starting motors

B．Hydraulics

C．Compressed air

D．Ether

点击查看答案

第5题

Which of the following statements is NOT necessarily true regarding mechanical waves？

A、They are sinusoidal in nature.

B、They carry energy.

C、They require a medium through which to propagate.

D、The wave speed depends on the properties of the medium in which they travel.

点击查看答案

第6题

In the first 5 minutes of walking, you should walk ______.A．slowlyB．quicklyC．at top speedD

In the first 5 minutes of walking, you should walk ______.

A．slowly

B．quickly

C．at top speed

D．at medium pace

点击查看答案

第7题

Crankshafts of medium speed engines are _____ from a single piece of steel.A.unusually sol

Crankshafts of medium speed engines are _____ from a single piece of steel.

A.unusually solid welded

B.never be solid forged

C.almost invariably solid forged

D.almost invariably be welded

点击查看答案

第8题

Each cylinder liner on the marine medium speed engines _____.A.is usually cooled by sea wa

Each cylinder liner on the marine medium speed engines _____.

A.is usually cooled by sea water

B.can be replaced when worn out

C.is in direct contact with the water in the bore of the cylinder

D.can t expand when heated

点击查看答案

第9题

The term medium speed diesel engine is currently taken to mean an engine with an operating

rotational speed of _____ rpm.

A.below 300

B.above 1200

C.between 300 to 1200

D.below 1200

点击查看答案

第10题

Medium speed engines have a _____ power to weight ratio than the slow speed two strokes, b

ut due to the higher speeds tend to have _____ maintenance intervals.

A.higher/reduced

B.higher/increased

C.lower/reduced

D.lower/increased

点击查看答案

警告：系统检测到您的账号存在安全风险

为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！

微信搜一搜

简答题

点击打开微信

警告：系统检测到您的账号存在安全风险

抱歉，您的账号因涉嫌违反简答题购买须知被冻结。您可在“简答题”微信公众号中的“官网服务”-“账号解封申请”申请解封，或联系客服。

微信搜一搜

简答题

点击打开微信