喷射泵的喉嘴距过大将导致________。A.工作水耗量增加B.工作水耗量减小C.引射流量过多，效率下降D.引射流量过少，效率下降

问题

喷射泵的喉嘴距过大将导致________。

A.工作水耗量增加

B.工作水耗量减小

C.引射流量过多，效率下降

D.引射流量过少，效率下降

参考答案

您可能感兴趣的试题

The fire pumps must be capable of delivering a total quantity of water at a defined head, not less t

答案解析
_____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuring scale, t

答案解析
When anaerobic bacteria convert the sewage to an inert sludge, .A.no oxygen is neededB.oxygen is nec

答案解析
Which of the following problems should be taken when cleaning the air filter on a diesel engine equi

答案解析
Vee-type engines have the connecting rods from two cylinders connected to each _____ of the cranksha

答案解析
A fire in a pile of dunnage would be classified as a _____.A.class AB.class BC.class CD.class D

答案解析

相关内容

If a reciprocating air compressor has a knock occurring in frequency with its operating RPM, the cau
The amount of fluid delivered by a positive displacement pump can be regulated by _____.A.throttling
当活塞采用浮动式活塞销时，相应地（）。A.在连杆小端要采用滚针轴承B.采用定位销固定，防止轴向移动C.采用卡环防止销轴向窜动D.不能采用强压润滑
把仪表的最大绝对误差与仪表的测量范围之比的百分数称之为______。A.相对误差B.基本误差C.附加误差D.灵敏度B
柴油机吊缸时对活塞环进行检查和测量的项目有（）。Ⅰ.径向厚度（磨损）测量Ⅱ.搭口间隙测量Ⅲ.天地间隙测量Ⅳ.环背隙测量Ⅴ.环弹力检查Ⅵ.表面损伤检查A.Ⅰ＋Ⅲ＋ⅤB.Ⅱ＋Ⅲ＋Ⅴ＋ⅥC.Ⅰ＋Ⅱ＋Ⅲ＋Ⅴ＋
燃油锅炉和废气锅炉的联系方法中不包括_________。A.各自独立，供汽都通到蒸汽分配联箱B.废气锅炉为燃油锅炉的附加受热面C.燃油锅炉为废气锅炉的附加受热面D.燃油锅炉和废气锅炉组合成一体
在四冲程柴油机中，使膨胀损失增大的原因是（）。A.进气阀提前开启角太大B.进气阀提前开启角太小C.排气阀提前开启角太大D.排气阀提前开启角太小
Please choose a correct name for “救生圈”.A.life buoyB.life jacketC.life raft
A vessel sounding a fog signal of one short，one prolonged，and one short blast is indicating that the
The sealing rings are in four parts and pressed together around the piston rods by means of _____A.n