轮机英语船舶电气与船舶安全单项选择题每日一练(2018.07.18)

单项选择题
If you burned your arm on a bare steam line, the most effective immediate treatment would be to（）
A.wrap the arm in a tight bandage
B.soak the arm in hot salt water
C.cover the burn with petroleum jelly
D.put the burn in cold water
单项选择题
Which of the following problems will occur if the needle valve in a fuel injection nozzle sticks in the open position?（）
A.Fuel injection timing will change
B.Nozzle operation will be unaffected
C.Fuel will leak into the drain line
D.Fuel will not be delivered
单项选择题
The（）enables water to be blow down or emptied from the boilerIt may be used when partially or completely emptying the boiler.
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
单项选择题
Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）
A.Decreased connecting rod bearing clearance
B.Increased connecting rod bearing clearance
C.Decreased compression ratio
D.Increased compression ratio
单项选择题
Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）
A.Excessive valve train lubrication
B.Leaking standby oil cooler core
C.Excessive lube oil pressure
D.Excessive lube oil in the system