Tensile stress is a result of two forces acting in ______.A.opposite directions on the same line，tending to pull the material apartB.opposite directions on the same line，tending to compress the objectC.opposite directions along parallel linesD.the same di

题目

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

相似考题

1.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.

2.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 connectionB.The weld may be broken by the stresses caused by rivetingC.The weld increases the tensile stress on the rivet headsD.The welding must be completed before the riveting commences

3.With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．A.longitudinal centerlineB.center of flotationC.original vertical centerlineD.metacenter

4.Which two forms of DSL connectivity provide the same bandwidth in both directions?()A.ADSLB.HDSLC.SDSLD.RADSL

参考答案和解析
正确答案：A
更多“Tensile stress is a result of two forces acting in ______.A.opposite directions on the sam ”相关问题

  • 第1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2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3题：

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

    A对

    B错


    错
    略

  • 第4题：

    单选题
    Two main processes that determine oil prices are ______.
    A

    media accounts and oil markets

    B

    economic fundamentals and irrational fears or the actions of shadowy governments

    C

    consumers’ fears and suppliers’ political decisions

    D

    the forces of supply and demand and constraints on those forces created by political risk and cartel behavior


    正确答案： C
    解析：
    录音中介绍了可能引起油价波动的因素，并在最后指出决定油价的两个主要过程“the forces of supply and demand and constraints on those forces created by political risk and cartel behavior”，因此选D。
    【录音原文】
    Because of the market’s complexity, media accounts often suggest that oil markets move without a clear connection to economic fundamentals and that irrational fears or the actions of shadowy governments drive price and product availability. Although consumers’ fears and suppliers’ political decisions surely matter, their effects can be understood within a fairly traditional market framework. Two main processes determine oil prices: the forces of supply and demand and constraints on those forces created by political risk and cartel behavior.

  • 第5题：

    单选题
    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： B
    解析： 暂无解析

  • 第6题：

    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


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an （）.
    A

    double-acting engine

    B

    opposed pistons engine

    C

    single-acting engine

    D

    horizontal acting engine


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    The internal force of a material, which tends to resist deformation when subjected to external forces, is known as （）.
    A

    stress

    B

    strain

    C

    shear strength

    D

    ultimate tensile strength


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）
    A

    bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversed

    B

    bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversed

    C

    the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine

    D

    two-stoke/cycle diesel engines require more complicated lubrication piping


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    The result of two forces acting in opposite directions and along parallel lines，is an example of what type of stress?（）
    A

    Tensile

    B

    Compression

    C

    Shear

    D

    Strain


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    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： D
    解析： 暂无解析

  • 第12题：

    多选题
    Which two forms of DSL connectivity provide the same bandwidth in both directions？（）
    A

    ADSL

    B

    HDSL

    C

    SDSL

    D

    RADSL


    正确答案： B,C
    解析： 暂无解析

  • 第13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14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15题：

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


    正确答案:错误

  • 第16题：

    单选题
    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： B
    解析： 暂无解析

  • 第17题：

    单选题
    1）#include 2）usingnamespacestd； 3）intmain（） 4）{ 5）inta，b，result； 6）cout>a>>b； 8）result=3*a-2*b+1； 9）cout<<"resultis"<
    A

    please input two numbers：/n

    B

    please input two numbers：

    C

    cout<<”please input two numbers：/n”

    D

    ”please input two numbers：/n”


    正确答案： C
    解析： 语句“please input two numbers：/n”中的“/n”具有换行功能不会被输出，因此输出“please input two numbers：”

  • 第18题：

    单选题
    Who has been acting CEO for the last two months?
    A

    Gerald Wallace

    B

    Ben Holmes

    C

    Clive Warren

    D

    Bella Haskins


    正确答案： D
    解析：
    根据第2段第1、2句I’d like to thank Clive Warren,… operations recently可知CliveWarren近两个月来作为代总裁负责公司的整体运营，故选C。

  • 第19题：

    单选题
    The main function of tie rods in the construction of large, low speed diesel engines is to（）.
    A

    stiffen the bedplate in way of the main bearings to increase the engines longitudinal strength

    B

    accept most of the tensile loading that results from the firing forces developed during operation

    C

    mount the engine frame securely to the hull to prevent shaft coupling misalignment

    D

    connect the crosshead solidly to the piston rod


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the（）.
    A

    upward-acting weight force

    B

    downward-acting weight force

    C

    upward-acting buoyant force

    D

    environmental force


    正确答案： B
    解析： 暂无解析

  • 第21题：

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

    对

    B

    错


    正确答案： 对
    解析： 暂无解析

  • 第22题：

    单选题
    In a single acting, two-stroke/cycle, diesel generator engine, the power impulse in an individual cylinder occurs （）
    A

    once every crankshaft revolution

    B

    once every two crankshaft revolutions

    C

    once every piston stroke

    D

    twice every piston stoke


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    The centre of lateral resistance is（）.
    A

    the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the wind

    B

    the point of influence of wind on the ship

    C

    the pivot point

    D

    the point on the ship's above-water structure upon which the whole force of the wind can be considered an act


    正确答案： C
    解析： 暂无解析

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