柴油机运转抖动剧烈,这是()的原故。A、空气滤清器堵塞B、发动机气缸磨损严重C、喷油时间过早或过迟...
Saturday, February 24, 2024
Tuesday, September 13, 2022
Monday, January 1, 2024
硅整流发电机充电电流过大原因之一是因为调节器调节()造成的。A、电流过大B、电压过低C、电压过高...
Saturday, March 18, 2023
制动效果最好的时机是当地面制动力接近其最大极限值而又未到此值的时候,这时车轮即将抱死滑移而尚未开始滑移。...
Monday, December 19, 2022
蓄电池将发电机剩余的电能转化为()储存起来。A、机械能B、化学能C、热能...
Wednesday, November 1, 2023
Tuesday, September 13, 2022
Saturday, July 8, 2023
叉车、拖头在道路上行驶时应在机动车和非机动车道中间跨线行驶。...
Tuesday, October 10, 2023
一级保养的任务:保证机械正常运转,主要是()、()、()、()。...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Saturday, March 18, 2023
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
机械起步前应()。A、查看周围有无障碍B、按喇叭提醒周围人员C、检查油、水、电...
Monday, January 1, 2024
引起柴油机飞车的原因之一是()。A、喷油器油针卡住B、加速齿条卡住C、喷油雾化不良D、喷油量过少...
Monday, January 1, 2024
钢的含碳量越高,淬火后的硬度和耐磨性越高,塑性(),但对于含碳量...
Tuesday, September 13, 2022
吊钩起吊1.25倍额定起重量的试验载荷后,吊钩开口度的增量δ不应超过原武器度的()。A、0.15%B、0.25%C、0.35%...
Saturday, November 11, 2023
装卸机械在道路上行驶时,货叉、铲车距离地面不准超过()。...
Tuesday, September 13, 2022