How should you signal the crane operator to stop in an emergency?（）
1、How should signal flares be used after
How should signal flares be used after you have abandoned ship and are adrift in a liferaft?（）.AImmediately use all the signals at onceBUse ...
2、How should you signal the crane operat
How should you signal the crane operator to lower the boom and raise the load（）.AExtend arm and point finger in the direction to move the ...
3、How should you warm up a diesel engine
How should you warm up a diesel engine that has not been run for some time? （）ARun it at minimum speed for a period of timeBRun it at half speed for a period of timeCBring it to top speed immediatelyDInject ether into the air intake
4、How should you signal the crane operat
How should you signal the crane operator to dog everthing?（）.APlace both fists in front of the body with the thumbs pointing outward each ot...
5、How should you signal the crane operat
How should you signal the crane operator to raise the boom and lower the load?（）.AExtend arm with the palm down and and hold this position...
6、How should you signal the crane operat
How should you signal the crane operator to lower the boom and raise the load?（）.AExtend arm and point finger in the direction to move the...