If the head pressure of a reciprocating refrigerat
If the head pressure of a reciprocating refrigeration compressor is excessive
A.the relief valve should open before the high pressure cutout
B.the relief valve should open and allow the excess refrigerant to flow to the receiver
C.the high pressure cutout switch should operate before the relief valve opens
D.you should close the discharging valve
请帮忙给出正确答案和分析，谢谢！
参考解答
407***779
2024-06-14 22:52:59
正确答案：C
相似问题
Which of the following operations need NOT to be e
Which of the following operations need NOT to be entered on the Oil Record Book Part I? I、Disposal of oil residues II、
Which of the following represents the significance
Which of the following represents the significance the fuel oil cetane number?A The cetane number has no affect on injection
In the presence of an open flame or hot surfaces
In the presence of an open flame or hot surfaces, chlorinated flourocarbon refrigerants decomposes and form A petroleum cryst
使用盘车从扫气口观察活塞环等零件的工作状态之前 预先必须要做的准备工作包括_____。Ⅰ.合上盘车机
使用盘车从扫气口观察活塞环等零件的工作状态之前，预先必须要做的准备工作包括_____。Ⅰ 合上盘车机；Ⅱ 关闭起动空气；Ⅲ 停止冷却水或冷却油的循环；
UMS stands forA.ultra much spaceB.universal medium
UMS stands forA ultra much spaceB universal medium systemC unit machined spaceD unattended machinery space请帮忙给出正确答案和分析，谢谢！
