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Tensile stress is a result of two forces acting in（）.

题目
单选题
Tensile stress is a result of two forces acting in（）.
A

opposite directions on the same line，tending to pull the material apart

B

opposite directions on the same line，tending to compress the object

C

opposite directions along parallel lines

D

the same direction along parallel lines

参考答案和解析
正确答案： C
解析： 暂无解析
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相似问题和答案

第1题：

Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?

A.Tearing through the member is more likely in this type connection

B.The weld may be broken by the stresses caused by riveting

C.The weld increases the tensile stress on the rivet heads

D.The welding must be completed before the riveting commences


正确答案：D

第2题：

With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．

A.longitudinal centerline

B.center of flotation

C.original vertical centerline

D.metacenter


正确答案：D

第3题：

Which of the following is true according to the first two paragraphs?

A．Women are biologically more vulnerable to stress.

B．Women are still suffering much stress caused by men.

C．Women are more experienced than men in coping with stress.

D．Men and women show different inclinations when faced with stress.


正确答案：A
题目问的是通过对前两段的了解选出正确选项。通过对原文的了解可知，文章前两段主要描写男女因为生理上的差异，所以可能在相同的情况下，女性可能更容易在压力下产生焦虑和沮丧。B项和C项不符合文意，B项所指的女性遭受压力多来自男性偏离文章线索。C项所说的女性相比男性更有处理压力的经验也是断章取义 。D选项只是单纯描述男女之间在面对压力的差异，与中心偏离。

第4题：

Stress makes a person want to stop whatever they are doing,try to relax,and become calm again．Too much stress results in physical,emotional,and mental health problems.
There are numerous physical effects of stress．Stress can affect the heart．It can increase the pulse rate,make the heart miss beats,and can cause high blood pressure．Stress can affect the respiratory system．It can lead to asthma．It can cause a person to breathe too fast,resulting in a loss of important carbon dioxide．Stress can affect the stomach．It can cause stomach aches and problems digesting food．These are only a few examples of the wide range of illnesses and symptoms resulting from stress.
Emotions are also easily affected by stress．People suffering from stress often feel anxious．They may have panic attacks．They may feel tired all the time．When people are under stress,they often overreact to little problems．For example,a normally gentle parent under a lot of stress at work may yell at a child for dropping a glass of juice．Stress can make people angry,moody,or nervous.
Long-term stress can lead to a variety of serious mental illnesses．Depression,an extreme feeling of sadness and hopelessness,can be the result of continued and increasing stress．Alcoholism and other addictions often develop as a result of overuse of alcohol or drugs to try to relieve stress．Eating disorders,such as anorexia,are sometimes caused by stress and are often made worse by stress．If stress is allowed to continue,then one's mental health is put at risk.
It is obvious that stress is a serious problem．It attacks the body．So,reduce stress:stop the world and rest for a while.

Choose the best answer to explain how alcoholism is caused by stress.

A.alcohol is popular
B.alcohol is similar to medicine
C.alcohol is a chemical
D.alcohol is used to relieve stress

答案：D
解析：
第四段中提到，压力常会使人对酒精或毒品有强烈的依赖，以寻求解脱。

第5题：

Your vessel has a midships engine room and the cargo is concentrated in the end holds．The vessel is ______．

A.sagging with tensile stress on main deck

B.sagging with compressive stress on main deck

C.hogging with tensile stress on main deck

D.hogging with compressive stress on main deck


正确答案：C

第6题：

Tensile stress is a result of two forces acting in ______.

A.opposite directions on the same line，tending to pull the material apart

B.opposite directions on the same line，tending to compress the object

C.opposite directions along parallel lines

D.the same direction along parallel lines


正确答案：A

第7题：

One function of a bulwark is to ______．

A.Help keep the deck dry

B.Prevent stress concentrations on the stringer plate

C.Protect against twisting forces exerted on the frame of the vessel

D.Reinforce the side stringers


正确答案：A

第8题：

When defining a function activity, what is true about the Result Type?() (Choose two.)

A. Result Type is optional.

B. Result Type is mandatory.

C. Result Type can be changed after it is assigned to the function activity.

D. Result Type should belong to the same item type as the function activity


参考答案：A, C

第9题：

Stress makes a person want to stop whatever they are doing,try to relax,and become calm again．Too much stress results in physical,emotional,and mental health problems.
There are numerous physical effects of stress．Stress can affect the heart．It can increase the pulse rate,make the heart miss beats,and can cause high blood pressure．Stress can affect the respiratory system．It can lead to asthma．It can cause a person to breathe too fast,resulting in a loss of important carbon dioxide．Stress can affect the stomach．It can cause stomach aches and problems digesting food．These are only a few examples of the wide range of illnesses and symptoms resulting from stress.
Emotions are also easily affected by stress．People suffering from stress often feel anxious．They may have panic attacks．They may feel tired all the time．When people are under stress,they often overreact to little problems．For example,a normally gentle parent under a lot of stress at work may yell at a child for dropping a glass of juice．Stress can make people angry,moody,or nervous.
Long-term stress can lead to a variety of serious mental illnesses．Depression,an extreme feeling of sadness and hopelessness,can be the result of continued and increasing stress．Alcoholism and other addictions often develop as a result of overuse of alcohol or drugs to try to relieve stress．Eating disorders,such as anorexia,are sometimes caused by stress and are often made worse by stress．If stress is allowed to continue,then one's mental health is put at risk.
It is obvious that stress is a serious problem．It attacks the body．So,reduce stress:stop the world and rest for a while.

Stress can affect the respiratory system by__.

A.decreasing the pulse rate
B.a loss of carbon dioxide
C.causing breathing problems
D.causing asthma

答案：C
解析：
第二段中提到，压力会影响到呼吸（respiratory）系统，会引起哮喘症（asthma），使人呼吸加快。

第10题：

Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）

A对

B错


错
略

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