【单选题】【消耗次数:1】
在高压、大功率的液压系统中通常选用( )。
齿轮泵
叶片泵
柱塞泵
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相关题目
【单选题】 在高压、大功率的液压系统中通常选用( )。
①  齿轮泵
②  叶片泵
③  柱塞泵
【单选题】 柱塞泵可分为径向柱塞泵和( )两在类。
①  齿轮泵
②  叶片泵
③  轴向柱塞泵
【判断题】 单作用叶片泵和径向柱塞泵是通过改变转子和定子的偏心距来实现变量
①  正确
②  错误
【单选题】 由于泄漏的存在,齿轮泵通常作为( )泵使用。
①  低压
②  中压
③  高压
【单选题】 由于泄漏的存在,齿轮泵通常作为( )泵使用。
①  低压
②  中压
③  高压
【单选题】 齿轮泵是液压系统中广泛采用的一种液压泵该说法( )
①  正确
②  错误
【判断题】 柱塞泵按柱塞的排列和运动方向不同,可分为径向柱塞泵和轴向柱塞泵两大类。该说法( )
①  正确
②  错误
【判断题】  柱塞泵 几种形式。
①  正确
②  错误
【单选题】 叶片泵的结构较齿轮泵复杂,但其工作压力较高,且流量脉动小,工作平稳,噪声小,寿命较长。该说法( )
①  正确
②  错误
【单选题】 叶片泵分为完成一次吸、排油液的单作用叶片泵和完成两次吸、排油液的双作用叶片泵。该说法( )
①  正确
②  错误
随机题目
【单选题】 A: Do you have any check-in luggage? B: [填空]. Theyre heavy. I hope theyre not overweight. A: Theyre just under the maximum weight.
①  Yes, Ill show you
②  Yes, two pieces
③  Yes, there you are
④  Yes, not many
【单选题】 A: I didnt know you play basketball. Are you having fun? B: Im having a great time. [填空] What are you doing?
①  Great!
②  How about you?
③  I miss it so much
④  Do you know billiards?
【单选题】 A: Do you know that Tony quarreled with his brother? B: I dont know,[填空].
①  nor dont I care
②  nor do I care
③  I dont care neither
④  I dont care also
【单选题】 A: Sorry to give you so much trouble. B: [填空].
①  OK. With great pleasure
②  Oh, really? Thats OK
③  Dont worry about it
④  Im sorry to hear that
【单选题】 A: What do you have in mind? B: Im thinking about jewelry or something valuable. A: Weve got beautiful jewelry here. If youre interested, [填空].
①  I can show you
②  you can see it
③  you should buy it
④  Ill get it
【单选题】 A: Were having a few people over for dinner Saturday. [填空] B: Oh, thank you. That would be great.
①  Are you doing anything then?
②  Wed love to have you around.
③  Itll be a lot of fun.
④  Have you heard about it?
【单选题】 A: Please remember me to your parents. B: [填空].
①  They remember seeing you once
②  I am afraid they have poor memories
③  You can contact them directly
④  Thanks a lot. I will
【单选题】 A: Is there anything I can do for you? B: [填空], there is something.
①  No, nothing
②  Well, now that you ask
③  Nothing I can think of
④  If you ask me
【单选题】 A: I like this flat very much, but Id like to come and see it on Friday at 5 oclock. Will that be convenient? B: [填空].
①  Its good for you
②  Thats right
③  Its thoughtful of you
④  Thats fine with me
【单选题】 A: Mr. Wang, Im very much impressed. Theres no need for further questions. B: [填空].
①  Really? Thats great
②  Sorry, I didnt mean to bother you
③  Thank you for your time
④  Its my pleasure