Monday, August 12, 2024
问题:一氧化碳浓度达到40ppm可工作()。A、60分鈡B、15-20分鈡C、30分鈡...
Wednesday, August 13, 2025
问题:检查排水器是否亏水的方法有将排水器下降管阀门关闭,打开高压侧丝堵,探测高压侧是否满水,低压侧探测()与()。...
Monday, January 20, 2025
问题:一氧化碳与血红胆白的结合力比氧与血红胆白的结合力大()倍A、50~100B、200~300C、500~600...
Tuesday, July 15, 2025
问题:轻度煤气中毒,中毒时间短,血液中碳氧血红蛋白为(),表现为头痛眩晕、心悸、恶心、呕吐、四肢无力等。...
Monday, May 19, 2025
Tuesday, January 14, 2025
问题:流体在单位时间内通过管道某一截面的数量称为流体的()流量,简称流量。...
Saturday, January 13, 2024
Tuesday, January 28, 2025
问题:煤气管道试验时,要清除管道内的一切杂物,放掉水封里的水,关闭水封...
Thursday, September 15, 2022
Tuesday, November 5, 2024
Tuesday, January 14, 2025
Thursday, September 15, 2022
问题:进入煤气设施内作业,煤气含量与工作时间如何规定?...
Saturday, July 1, 2023
问题:配戴氧气呼吸器、空气呼吸器应()A、先开气瓶开关,后戴面具B、先戴面具,后开气瓶开关...
Wednesday, January 3, 2024
Sunday, August 25, 2024
Monday, May 19, 2025
问题:发生煤气中毒事故,抢救人员要立即进入现场进行报抢救。...
Tuesday, January 28, 2025
Thursday, September 15, 2022
Monday, September 11, 2023
问题:煤气设施送入煤气后必须进行含氧量和一氧化碳分析或爆发试验,爆发试验连续三次合格,待检验煤气合格后,才能()。...
Sunday, July 20, 2025