If you change from a low pour point lubricant to a high pour point lubricant in a refrigeration system, （）.
1、If a person is unconscious from electr
If a person is unconscious from electric shock，you should first remove him from the electrical source and then（）.Aadminister ammonia smelling ...
2、When a vessel changes course from one
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）...
3、If you are sailing from the East Coast
If you are sailing from the East Coast of the United States to the Caribbean Sea，which publication would contain information on weather，curren...
4、If you see someone fall overboard from
If you see someone fall overboard from a ship，you should（）.Aimmediately jump in the water to help the individualBcall for help and keep the...
5、The term "pour point" is defined as th
The term "pour point" is defined as the lowest temperature at which lubricating oils will flow （）.ArapidlyBby gravityCthrough a standard orifice at a specified temperatureDat a rate of 60cc per second
6、If you observe smoke coming from the t
If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）Acheck the air filter for obstructionBcheck for an exhaust leakCcheck the exhaust temperatureDsecure the engine